Porsche bore scoring symptoms reddit I had a 2008 Cayenne S previously and I loved that vehicle. Funny how the IMS bearing issue was severely overblown but not many people talk about the catastrophic Bore Score issues that happen with the following: 987. Usually bank 2 will score before bank 1, so I'd start there. A place for Porsche owners and enthusiasts. 1 Base Cayman (2. 1 is rare, it does happen, and as the cars get older, we are seeing more instances of scoring and piston seizing. 4 bore scoring 987. We understand why scoring happens: it’s defective bore coatings and oil starvation mostly. Its a trade off too Can we get some perspective here. I am doing some maintenance and got myself a borescope to have a look and was surprised to find the attached. These cars have magnetic fluid inside of the shock absorber that is activated by electronic devices mounted to the shocks. no bore scoring is not an issue. Definitely do change/check the oil and monitor oil levels closely. Or if this is like “yeah, it’s normal just drive and enjoy it” IMS still affects 997. View community ranking In the Top 1% of largest communities on Reddit. Why does the 996 deserve all the bad press for a rare failure? As I understand it, the 3. Check out Jake Raby’s “Focus on bore scoring” video series on youtube. 8 bore scoring 981 Porsche Boxster 3. Bore scoring is a much bigger issue with the 997 3. r/Rivian is the largest and most active fan-run auto-enthusiast Rivian community. Symptoms of Bore Scoring. Mar 1, 2022 · The car has zero of the usual symptoms associated with bore scoring. While there are more than a few cases of this problem on older engine designs, if you have a 9A1 motor there are very few examples that I have ever heard of. The . 4 engine used in For this reason, over time, your Porsche may experience bore scoring or cylinder bore scoring. Incidentally I spoke to an independent today that reckoned that The base model 09-12 987. It's a must to bore scope the cylinders to check for scoring. 1. That’s about $700 in labor. After doing some research, I'm… Toyota qualified close to Porsche in Imola and their fastest lap of the race was within 1 tenth of Porsche. May 6, 2015 · My local specialist scoped my bores (2005 997. Be sure to include bore scoping to The single biggest issue with the 997 engine is cylinder bore scoring. IMS can be sorted but the scoring is a far more serious issue i'd say. The V8 engines in the S have the most prominent occurrence of bore scoring, which is bad news. It affects the Cayennes and Macans too. 8 is less durable than the 3. The internet and people on forums like rennlist, many who have never even owned a Porsche, have blown it out of proportion, when in fact every single car experiences bore scoring and engine wear. 190k miles on my 997. 1 uses Lokasil and bore scoring is a rare failure on all these engines. 4 engine used in Cayman S and late Boxster S models. About to dump my 2009 cayenne turbo with 102k for 12k. Simply put, it’s a 23 year old German sports car made in a period when the company wasn’t sure it would survive. My bores are scored and causing a huge amount of oil to be used and a little smokey on the driver's side when cold. 8 M97. The Porsche engines most commonly diagnosed with cylinder bore scoring include the 3. 4 seems to suffer a bit more frequently from bore scoring, but this might be due to they way they’re typically driven. In the final segment, How to fix bore scoring in your Porsche’s M96/M97 engine, solutions to cylinder bore scoring in Porsche engines are discussed in detail, including LN Engineering’s Nickies cylinder sleeves which fix all known cylinder issues with the M96 and M97 engine – slipped sleeve, d-chunk, and cylinder bore scoring issues that Do a PPI if possible, and bore scope is ideal. 21 had an updated IMS bearing Usually its fine but that leaves bore scoring on the table. May 20, 2009 · Identifying bore scoring - photos Pictures referring to bore scoring etc. One of the symptoms described by Flat6 Innovations in their video series on the subject is a ticking noise at idle, a bit like a sticky hydraulic tappet, which they say never happens, or very rarely, on Oct 11, 2022 · Bore score only affects the larger bore 3. ) Radiators only have issues if the ducts aren't kept clear of plant matter that would cause moisture build up and therefore corrosion. 2 Porsche Cayman 3. The Porsche 997 911 models from the years 2005-2008 are more susceptible Sounds like either IMS or bore scoring but you’ll have to dig into the engine more. The Raby method makes sense but not without patience and experience with noodling a bore scope up from the bottom of the engine. 997. 2. A PPI that doesn’t drop the oil pan won’t catch early bore scoring. Buy the nicest one you can afford, $20k is definitely lower end of the spectrum. Generally when bore scoring is occurring, it's happening in just one cylinder or a specific bank, causing oil to get into the combustion chamber and come out one specific side of the exhaust. No one wants to admit the 3. I moved to 997. Yes, bore scoring is indeed a thing with Panamera and Macan models like it is in a Cayenne. I was thinking about getting one till I saw the run down showing that almost every 3. All design flaws. IMS is usually done along with the clutch, some dedicated Porsche shops even have this specific replacement stated on their sites where I live, around 2k from what I’ve seen here. 1 Boxster S (Base model remains unaffected) Kind of unrelated but seriously I cannot believe how few people talk about the cayman/boxter S and 966 Porsche bore scoring issues. Anyone… Mar 8, 2022 · How do you stop Porsche bore score? Porsche bore score is a common problem among drivers of high-performance vehicles. 2 since it’s direct injection which solves the biggest cause of bore scoring. The condition is characterized by a gradual wearing down of the engine’s cylinders and it can often be difficult to stop without taking the car in for repairs. Owners of these cars aren't anywhere as passionate about their vehicles compared to owners of sports car models, so you don't often see them online or on the forums or even at Porsche events. They utilize the same Alusil technology for the engine blocks. 1 have potential IMS issues as well as bore scoring (worse for the larger S motor). IMS issues aren't as bad as the 996. I have a 2007 . The simple question is where is the best place to get the work done without losing This is all very intentional by Porsche who want to keep all the repair business to themselves. It's also worth noting that models with the Mezger engine have Nikasil plated cylinder bores that do not score, so no worry there. 01/02/04 engine found in 99-01 Porsche 911 996 models indeed do suffer less from bore scoring, but we do see some with slipped sleeves and d-chunk failures, the latter failure mode being very uncommon in later 996 and 997 models. We discuss the electric vehicle company, Rivian Automotive, along with their products and brand (not the stock). If the mileage is contributed to frequent low distance driving, that means the engine is probably worn a lot more due to be driven cold in longer durations than let's say an higher mileage car that uses the highway more or take longer drives. Porsche ran very tight piston to wall clearances (less than . But my understanding is the scoring is then an entire engine rebuild that can cost around 30k and take a really long time. Another tell-tale sign of Porsche bore scoring are sooty tailpipes. There are a few things you can do to try to prevent Porsche bore Bore scoring, oil starvation under high-g cornering, and head stud failure, for example. Is this a concern But the cylinder bore scoring issue is highly reported and still worrisome to say the least. Most dealers aren’t willing to do that unless the car is due for a major with spark plugs The car however is bore scored, I made the mistake of trusting the seller that said nothing was wrong with the car instead of getting it checked out at a local shop. Cylinders are scored. There is cause and effect. 2 and 991. Jun 16, 2022 · If you considering buying a 997. As others have said I would 100% get it checked if it's a 996/997 in the bore scoring years. Within Porsche maintenance forums the estimate is 1%-2% of vehicles max, rather than the LN estimate of 8%+. Then you’re Apr 8, 2017 · Interesting article in 911 & Porsche World (May 2017 issue) regarding bore scoring in MA1 engines. 2s generally do not have the same bore scoring "problem" as the later cars because they use cast pistons vs the forged Mahle pistons that are infamous (but any car can technically bore score or rod knock, etc). In addition to other upgrades the Gen2 engine block is an Alusil rather than a Lokasil casting which appears to be more robust, and I don’t recall having heard of the catastrophic D-chunking reported occasionally on Gen1 engines. If you see a chronometer on the dashboard of a Porsche, the car has PASM. An S2000 properly maintained with a clean history can be easily obtained in this price range and maintenance will likely consist of an annual checkup, oil change, and a new pair of rear tires. 1's is substantially less than the percentage for cylinder wall scoring or oil starvation issues. Bore scoring applies to both . Models with bore scoring: *1999-2004 Porsche 996 (all models except GT3 and Turbo, less prominent with 99-01 years, but still occurs) *2005-2008 Porsche 997. Porsche was ahead in Qatar. 1 Carrera and Carrera S (Turbo and GT3 models excluded) *2006-2008 Porsche 987. Cylinder bore scoring is a common concern of many Porsche owners. A PPI that doesn’t pull the plugs won’t catch moderate to advanced bore scoring. Understanding Bore Scoring: Bore scoring refers to the formation of scratches, grooves, or marks on the cylinder walls of an engine. I would recommend getting a pre-purchase inspection on a Porsche including bore scoping the cylinders for scoring on earlier models. Porsche went to SUMEbore for the 718 and 991. r/Porsche • Thanks for the input on my previous post about an Aero kit on a base 992 allocation. Some 987. One had bore scoring, the other was sold before it had bore scoring. 8 engines as well as the 987 3. 1 S level performance, none of the issues associated with direct injection (fuel dilution and high failure rates of the high pressure fuel pumps), and lower chances of bore scoring than the 9A1/MA1 3. An M96 engine uses 22-24 litres of coolant depending on capacity, and a complete coolant change is an expensive job, that many owners scrimp on, particularly when the recommended Mobil 1 Advanced coolant costs £15 per litre. I live in Canada and I know cold weather is a factor on bore scoring on these vehicles. A low temp thermostat is supposed to help mitigate this. So few Boxsters get this issue, it’s barely worth mentioning on Reddit, let alone creating a whole post about it. In fairness, I also cruise around in third most of the time, in order to keep the revs high. Bore scoring is far more frequent of a problem on . 6 and 3. I love Porsche as much as the next guy but come on. Cylinders are Mar 27, 2017 · Hi All, Just had the diagnosis that no 997 owner wants. Another issue is IMS bearing but this is not a common issue on cars manufactured 2006 and later. 2 and later sports car engines, so no need to worry about bore scoring on those models as it pertains to models with Alusil and Lokasil engine blocks. Sorry to hear about your bad luck with this one. My understanding is ims bearing and bore scoring are the keys. 1 models. Just another Porsche apologist. We can usually talk to 2015-2017 cars but even some of those modules we can't read. Please feel free to share pictures of your own car, modifications plans or ask for buying advice. Sure if you are the type of buyer that doesn't get a PPI then you can discount buying cars from more than half the country. Apr 5, 2013 · Its interesting that Hartech has advised a way to manage the bore scoring. The most costly issue is bore scoring which could set you back around 10k. Dec 18, 2024 · 996 - IMS failures & Bore Scoring 997 - Small % Bore ScoringSo considering Porsche history, I doubt there would be any chance having Porsche open their pocketbook on the Bore Scoring issues. I've heard anecdotally that lower-revving engines (mainly automatics) driven lazily in the city make up a large portion of the engines effected by bore-scoring. Then let her rip! Early 987. You're probably thinking M96/M97 engine in 986/996 and 987. I find cars that develop scoring are poorly kept (gummed up injectors from poor quality gas, low oil or wrong oil, etc). The 2. I had bore scoring, the ticking sound is from the piston slapping the cylinder wall. If you get a PPI, make sure they check the cylinder walls for bore scoring through the oil sump, not from the spark plug, as wear typically builds from bottom up. It's a Porsche not a GM, keep it clean and it's not an issue. 2 but it’s not 100% immune from bore scoring. The 3. Watch out for a sooty passenger tailpipe or smoke on startup, and definitely pass if you hear a metallic ticking sound. It was not until the introduction of the 991. For non-turbo/gt3, there’s other people here more knowledgeable than me. 2S's with the 3. 1997 through 2008 Boxster, Cayman, and 911 models with the M96 or M97 engine utilized a hypereutectic engine block cast using the Lokasil process where 2009 and later models featured an Alusil engine block. 1 C2S, 46k miles) as part of an inspection. 22 3. 7l) was almost entirely unaffected by bore scoring, and is often considered a little more reliable than the S. Reply reply Price isn't quoted anywhere but I would imagine it'll be far far less than completely drilling out existing cylinder bore with a CNC machine and inserting new liners, as told anywhere as the only ever fix for 996/997 Bank 6 piston scoring. I am told the bores will need re-lining. 2 and 718 model that Porsche added the SUMEbore APS coating to the cylinders walls, effectively eliminating the bore scoring issue with these models. 1 base Cayman or Boxster. 8L M97. To diagnose the issue I did a pressure down test at a shop, the worst side was on cylinder 4,5,6 (right/passenger). If you want pdk then go . Mar 3, 2024 · One such concern that has garnered attention in Porsche circles is bore scoring. 1 and by that point the ims issues, which were like 1 or 2% anyway were fixed. I had 2007 S with 60K miles and it had zero problems but it was maintained properly. I second this for the money. 4 M97. 2, but like you said, affected number is unknown and likely difficult since bore scoring symptoms can be dragged out for a while before catastrophic failure. Non-S 2. If the engine checks out, there are numerous steps that can be taken to reduce the chances of having bore scoring. A rythmic ticking noise that sounds similar to that of a hydraulic lifter I've had this done recently following bore scoring issues. Please feel free to share… 2007 Cayman S listed for sale after bore scoring was found. 1 and . The clearances in the engine are so tight that in cold weather, the cold oil does not protect the cylinders. The biggest engine that seems to be good is Bore scoring is more prevalent on 997. As it has already been hinted to, it's more fun to drive a slow car fast than a fast car slow, but by no means is a base Cayman slow. However, like any complex machinery, the 997 is not immune to issues, one of the most notable being bore scoring. I do think the vast majority of stock M97 engines will eventually develop some form of bore scoring. Most cars on the road have ZERO SCORING. . The bore scoring means that you’re sol and need a new engine basically. The car I looked at had a water pump failure on the motorway which raised my suspicions about a potential problem. Porsche cylinder bore scoring occurs in engines with Lokasil and Alusil engine blocks when there is a breakdown of the Aluminum-Silicon (Al-Si) cylinder system. It's primary use would be for track and autocross days. How most dealerships are set up, service will still charge sales for the 3-4 hours of labor needed to do bore scoring. Don't spend too much thinking about ims and bore score, while those are serious issues they really can spoil the ownership/driving experience. 1’s after 05 are in okay condition for IMS, but it still can happen in later . 1 base. Spec details in comments. Yup, 2009+, though you can go older and do a bore scope (and buy a car from a warm climate) as well. It's unfortunate that you purchased a car with bore scoring. 6K miles of short runs. May 4, 2023 · Porsche M96/M97 Bore Scoring There are many articles online and various posts in Porsche forums about bore scoring issues and engine failure; if one were to believe what they see online, they’d think it was an endemic problem. Now I have my eyes on a higher mileage 2008 Cayenne Turbo. Bore scoring affects both generations but is much more prevalent in the 997. We've had more trouble lately with our Autologic scanner, I would guess that they're updating the Porsche software to make it harder for us to talk to these cars. 2 bore scoring also includes piston seizing which is another issue entirely. 2, if you are running from the ims and bore scoring ghosts go . 1? Absolutely. 2014-18 do not suffer from bore scoring (although some cases have been reported on Rennlist). Baz You are a fool. I would have bore scope and over revs on DME before purchase. 7 normally aspirated seem to be super safe - no issues observed with bore scoring). Here’s my build; my first Porsche. 262K subscribers in the Porsche community. Porsche use it for their cylinders and pistons. It cannot be understated how much the 3. Although bore scoring on a 991. 5 & 2. The V6 in the base is pretty much bulletproof, while the turbo V8's don't have the same issues and are also fairly reliable. Oct 4, 2017 · excerpt: GT Porsche Magazine (above link) Rear the full discussion on cylinder bore scoring with the M96/M97 Carrera engines in the March 2015 GTPorsche magazine, by Peter Morgan. Is this bore scoring ? About to dump my 2009 cayenne turbo with 102k for 12k. 3 days ago · Raby has always said the beginning stage of bore scoring is the loss of piston skirt material but when it comes to the cylinders, bore scoring begins at BDC at change-over on the thrust side of the piston. Cayman trans cables have a tendency to snap so keep that in mind. The same recommendations we make for the earlier cars to prevent cylinder bore scoring should be observed, including running an oil with high levels of moly friction modifiers such as DI40. Even on the newer Mezger it was barely a problem, I definitely wouldn’t worry about it on the . Although a PPI can be pricey, it's worth spending the money to have the bores scoped on any Porsche model with a Lokasil or Alusil, to prevent an issue like what you experienced. 15K subscribers in the Porsche_Cayman community. Just the very rare situation of a coolant pipe popping off, and that’s easily fixable during any engine out service. The reporter outlined the analysis done by Barry Hart, the boss of Hartech who are the main Porsche engine rebuild specialists in the UK. I’ve done a good bit of research: 997. 2 I need new turbos. I'm considering upgrading from a 96 Miata to a 987. 01 3. 6 in the 911 models) and is thought to be due to a hotspot developing on the wall of cylinder 6 (IIRC) before the water is fully circulating if the engine is not fully warmed up before being driven hard. Mar 30, 2023 · What bore scoring is & why it can happen to 1999-08 Porsche 911s, Boxsters, & Caymans | 1 of 4. That's why having a pre-purchase inspection carried out to check for bore scoring is a must on both S and non-S models. Is the upgrade from the base to the S worth it on the 987. And the most likely cause is a neglected cooling system. Toyota was ahead by small margin in Imola. Note the Alusil Gen 2 picture looking down the cylinder showing how the seize marks are at the bottom where we measured them closing in the bore and the casting part of the crankcase below that we think contributes to the shrinkage. 4 will have bore scoring issues eventually. Regardless, I'd recommend a proper Porsche PPI done by a Porsche specialist. 1’s WILL have bore scoring at some point in their life. Threads of people taking about how they had no noticeable issues but got a bore score Bore scoring (mainly on the m97. 1, no problems with it except with a tensioner, at 30k in my 991. If you already have Porsche 996 bore scoring, Porsche 997 bore scoring, Porsche 911 bore scoring, Porsche 987 bore scoring, Porsche Boxster bore scoring, or Porsche Cayman bore scoring, then we can help. 7L engines don't have this issue and are a great choice. 01 engines. 4 engine used in early 996, Cayman S, and late Boxster S models. Don't floor the car from dead cold start. 2 is a bargain. Fairly convinced this is borescoring and i rebuild a few dead lifters. From the few photos provided, either the bore scoring is in its early stages or what you are seeing is a scratch caused by a piece of debris (such as carbon) being dragged through the bore by the piston rings. Bore scoring/piston seizing is a known problem and is becoming more prevalent, so a doing a Porsche pre-purchase inspection must include scoping of the cylinders. 4 bore scoring Looking to purchase my first Porsche. The older, the greater the likelihood. Toyota was sandbagging at Spa. Dec 30, 2024 · Keywords: 2006 Porsche Cayman S issues, Porsche Cayman trade-in problems, bore scoring in Porsche engines, M96 engine failure symptoms, buying used Porsche tips, Porsche Cayman reliability concerns, sports car cylinder scoring, caution with Porsche trades, diagnosing engine problems, understanding Porsche engine issues 221K subscribers in the Porsche community. 2 Porsche Boxster 3. Be a smart buyer like me and buy 987/997 higher mileage example (80-110K miles) and as part of PPI get Bore Scope Inspection thru spark plug holes when 997. So please have it bore scoped during a PPI (Pre-purchase inspection) Now The 987. 6 and M97. If you wanna go full hypochondriac do a bore scope and overrev check. PVT - Porsche Torque Vectoring (rare option) PASM - Porsche Active Suspension Management (guessing probably right). Bore Scoring Article GT Porsche. Rear hatch struts can be squeaky so check those out too. Am I lucky? Probably. Is the issue blown out of proportion? Probably. I find people still worry about IMS with these cars but the failure percentage for IMS on 987. If anyone has any questions about the symptoms of bore scoring that I had or would like any info on how the 4. If no symptoms, no excessive oil consumption, good compression, and plugs This is home for all things Porsche Cayman. The audible Porsche bore scoring sound, or tick, is the earliest indicator that your engine might have scored cylinder bores, even before any other symptoms are present. Prior models with Alusil or Lokasil blocks can all score, but the 99-08 911s, 06-08 Cayman S, and 07-08 Boxster S are the models best known for the bore scoring issue. 2s got the Ma1 engine which was direct injected. Bore scoring , ims and rms are the main problems in 911 (1998-2007). 5. Before rebuilding the engine, I was consuming one quart of oil (1l) per 800 km. 4 liter M96. Jan 21, 2020 · I recently watched a YouTube video on bore scoring and am now concerned that I have it. 2’s supposedly have both the issues nearly Jun 9, 2022 · The Porsche engines we most commonly see with cylinder bore scoring that are sent to us for repair include the 3. 4 Cayman/Boxster S engines also suffer from cylinder bore scoring. The reason you’re finding it hard to find rollers with bore scoring is that people who find bore scoring offload or rebuild well before the symptoms get bad (which can take years) because it’s uncomfortable driving around with ticking and smoke and high oil consumption. Jan 19, 2013 · Bore scoring is usually caused by either too much load at low revs for the piston coating and the oil film strength between it and the cylinder wall material - to resist the abrasive nature of 12 votes, 35 comments. 1 models are prone to IMS bearing failure. 1 cayman - we've never seen a single case of bore scoring with these models. The 997 3. 4L had bore scoring issues while 987. 2 and 997 engines as well as with the M97. The Porsche bore scoring issue is well known among owners, enthusiasts, and mechanics. Pre 2007 3. 1 is the less probable to have problems. Could bore scoring cause while smoke on cold start What is important is that you have a proper pre-purchase inspection as there are other issues beyond just the ims bearing such as cylinder bore scoring which has become a much larger issue than the intermediate shaft bearing. I don’t believe the hype, but I’m also not in that market for different reasons other than bore scoring. 8 Porsche 911 996 and 997 engines as well as with the 3. Bore scoring isn't that big of deal according to my local Indy shop but I'm not an expert. I see your flair. Bore scoring is a much bigger concern than IMS for 2006-2008 model cars (for 2005, roughly equal risk). 1 conversion drives let me know, happy to answer any questions. I'd recommend bore scoping the cylinders for scoring through the sump to know for sure. Cylinders 4,5,6 have what he describes as a VERY mild scoring in comparison to cyls 1,2,3. Also keep in mind that lower mileage doesn't necessarily mean a healthier engine especially when these cars are over 10 years old. Although there are a number of benefits, one of the drawbacks is that is not a particularly durable metal. But it doesn’t just happen. Let the engine oil warm up before flooring it. Also, bore scoring typically occurs from letting the car idle for extended periods of excessive time, like when warming it up in the driveway during a cold morning; that’s why more View community ranking In the Top 20% of largest communities on Reddit. I'm glad you got a pre-purchase inspection (PPI), as they probably checked for this. The cheapest way to get into a Porsche and eliminate the two concerns you have with these cars is a 987. Would it be worth it to buy a 987. 4. I just had to rebuild mine due to bore scoring and it doubled the cost of the car. As Porsche bore scoring progresses, the symptoms will worsen proportional to the severity of the failure. Turns out, per the dealership, aero kit would delay my delivery indefinitely, “Minimum of 4-6 months”. 4 bore scoring 997. 7L engine in those was manufactured with different bore cylinder pistons that are not susceptible to scoring. May 24, 2023 · Watching the JayEmm on Cars video below earlier and he says that there are rumours that bore scoring issues are affecting Gen 2 cars now as well as Gen 1 cars (fast fwd to 15:37). 1) Running the new car hard in winter temperatures before oil reaches 170F. 6 M96’s are incredibly temperamental. Bore scoring: What is bore scoring? Many engines contain a large number of components made from aluminium. 05 3. I was under the impression that when bore scoring was evident that engine demise was close. 2 Porsche 911 3. But with that mileage a PPI is still the right move. Mar 15, 2013 · I suffered bore score on my 997. 1 especially on the 3. 6 even. Sponsored content provided by LN Engineering. So price in an ims bearing replacement and do a bore scope with the ppi. 4 engine in the 987. 2 Bases with the 2. I seem to remember anecdotally that northern (cold climate) cars were more prone to it too. 01 engines and Porsche Cayman cylinder bore scoring in 3. It has all the symptoms, slight ticking noise, large oil cloud that lasts until the car starts moving, oil coated spark plugs and o2 sensors that cause misfires and poor fuel economy. I’ve had two 07 CS, current has 117k miles that’s been scoped from the top and bottom and has zero bore score so far. Exception to this is the base 987. Near 987. 8 Porsche 911 996. of Total Seal Piston Rings explain what bore scoring is and why it happens. Porsche 911 996 and 997 cylinder bore scoring in 3. AOS failure is generally diagnosed by even smoke coming out of both exhausts. ) About to dump my 2009 cayenne turbo with 102k for 12k. 6 bore scoring 997. Bore scoring is also a troubling issue. This is home for all things Porsche Cayman. There wasn't a lot of info around at the time. Supposedly at 25K miles, the engine is loose enough the issue is lessened in cold. The Porsche engines we most commonly see with cylinder bore scoring that are sent to us for repair include the M96. 6 M96. Got rid of it, got an X5 but I miss the Cayenne. 21 3. There is no oil consumption between services and no other symptoms at all. 1 Cayman S. Both of which, remind me of my lack of fun in the MG. Porsche models from 1997 through 2008 including the 911, 996, and 997 as well as the Boxster, Cayman, 986, and 987 have all can experience the Porsche bore scoring problem. Currently looking in the $30k-$35k range and manual. Read from official statistics that only 3% of the vehicles had these problems. Apr 8, 2017 · Actually there are two problems in 9A1 engines that can lead to scoring. I have a S2000 and a Porsche. FACT #1: Cylinder Bore Scoring is the #1 leading cause of misdiagnosed engine failures for the following vehicles: 1999-2004 Porsche 996 (all models except GT3 and Turbo, less prominent with 99-01 years, but still occurs) r/Rivian is the largest and most active fan-run auto-enthusiast Rivian community. The simple truth is that while cylinder bore scoring has been an issue on a relatively small From my research, essentially the greater the power output of the M96/97 engines, the more likely there will be a bore scoring issue - essentially heat of the unit goes up and lubrication goes down - (Original 2. Be sure to take your car to a Porsche specialist who is familiar with these models. Much appreciated. They are great sports cars. 1 Cayman S (Base model remains unaffected) *2007-2008 Porsche 987. Jan 17, 2023 · Bore scoring is a problem that can occur in any internal combustion engine, and it is not limited to a specific make or model of vehicle. 1 S over a base 987. Feb 3, 2024 · I’m not aware that the Gen2 engine is as susceptible to [internet!] reported bore scoring compared with the Gen1. If the engine has been replaced and a factory replacement shortblock or longbock was fitted, the bore scoring and IMS issues have not been addressed by Porsche. In my opinion IMS isn't that big of an issue even on a 2005, just do the solution or retrofit when you do the clutch. If you’re working on the clutch, sure, check out the bearing. 05 and 3. 1 cars. Actually all “non Mezger” Porsche engines up to the 991. These are not susceptible to bore scoring. 4 liter engine used in the S models. I shared some lengthy thoughts about bore scoring (incidences, causes, risks) here. 4L) The m97. What seems to be more common than traditional bore scoring is piston seizing where the bores are shrinking at BDC in the areas closest to the main bearing saddles. I now drive a 987. 2?… Get the Reddit app Scan this QR code to download the app now A place for Porsche owners and enthusiasts. But doesn't mean that every 996/997 from cold climates has bore scoring. 2 doesn’t suffer from d chunk, a low mileage car that probably won’t be tracked probably won’t suffer a crank failure, 2000 would be a 5 chain motor so probably don’t need to worry about link failure or stretching, oil starvation probably not an issue if not tracking the car (and also precludes oil pump drive key failure), can’t imagine chain tensioners Bore scoring is an issue with the 3. 03, M96. 1/997. Also, Rennlist forums. 21 engines are most common; below are all the models with M96 or M97 engines that can experience this issue: With regards to bore scoring, anything prior to a 718 can suffer from scoring. 1 and extends to . Porsche was ahead again in Spa, despite the fact that Toyota had better BOP this year than last year so don't you worry. All this said, a 22k boxter plus a used engine at some point (if needed) is still fairly low cost proposition by porsche’s standards Bore score is pretty rare IMO. Yes a rebuild is hugely expensive, but you can prepare and save for it for when you decide to have it done. Keep in mind, most, not all, of the issues are due to people not driving these cars and not servicing them well. If its an S model, get it bore scoped. The Porsche 997, introduced in 2004, continued the legacy of the 911 series with its sleek design and impressive driving dynamics. Jan 20, 2022 · For those who missed it, follow this link to view the video of Tuesday evening’s presentation by the Hartech team which discussed in detail IMS bearing and bore scoring issues - and more - on the 996 and Gen1 987/997. 2 Carrera S 5 years ago and so a lot of 5 mile journeysalbeit in 5 years only c. I am just wondering if this scoring means that basically the car blows up while driving or the engine seizes within the next 30 days. There isn't just one smoking gun to explain why this occurs, but once you know what you are looking for, you can determine if your engine is suffering from bore scoring. Best of luck. there aren't any common power train issues that I'm aware of, outside of shifter cables on the manuals that would not have made it anywhere near 150k. Also, don't run your engine at high RPMs until it warms up to normal operating temperature. I was a little in the same boat and went with the 911. Bore scoring can affect any engine with Lokasil or Alusil engine blocks, so that would indeed include the 997. Edit:Bring on the downvotes haha. Same goes for a 997. He is happy to keep an eye on things. It doesn’t help that Porsche Club NA has videos of people basically screaming that all 996 and 997. 001"). The statistic is lower than 10%. 05, and M97. Fairly certain this is borescoring and i swapped out the lifters. 1 there are issues that could arise with this model. Bore scoring testing is expensive, as you have to take the spark plugs out to get a camera in there. However, there are modifications that can be done to mitigate or eliminate these issues. I owned a base car before my S and wish I'd kept it. In this blog, we delve into the intricacies of bore scoring in Porsche engines, exploring its causes, symptoms, and viable solutions. Basically, I’ve agreed to buy the car subject to a clean borescope, and I’ve just received images from the borescope carried out by the seller. So no Aero kit for me. So that leads to a lot of noise about IMS issues and Bore Scoring. 2 (9A1 engine) does not have an IMS at all. This will largely depend on your city, but I get around 14-15 in town. Until I realized I bought it already with a pretty serious case of cylinder scoring. The 718 4-cylinder engine has sumebore coated cylinders and does not suffer from cylinder bore scoring that we see in Lokasil and Alusil engines, so that's another option to consider. That aside: depends on how the rebuild was done. 996. In the first of four videos about bore scoring, Charles Navarro of LN Engineering and Tribologist Lake Speed, Jr. 2 models, so bore scoping the cylinders for scoring is a must. Also, bore scoring is real and possible. However, if you have a 997 911 like we do, you know all the craze about cold weather 997's and bore scoring. 03/M96. 8 liter M96. IMS can be permanently fixed with aftermarket parts. Bore scoring is a real problem, but also not going to affect most cars. All indicators of bore scoring. No regrets. I would own a 997 again, but only when I had enough resources to fix this should it occur. Porsche is responsible. 9L were largely unaffected). As for actionable advice, get a bore scope in the ppi and decide your risk tolerance for potential engine failure. Even then it's fairly manageable. All this said, a 22k boxter plus a used engine at some point (if needed) is still fairly low cost proposition by porsche’s standards The audible Porsche bore scoring sound, or tick, is the earliest indicator that your engine might have scored cylinder bores, even before any other symptoms are present. Bore scoring in a 2013 Cayenne Turbo (958) Woke up to an email from Porsche with my build There’s no difference between the two engines other than the piston bore. If you’re concerned about reliability you could consider stepping up to the 2009-2012 gen 2 cars, which don’t suffer the IMS or bore-score Feb 8, 2024 · There has been more written on the bore scoring problems with Porsche 996 and 997 engines than you can probably fit in the Library of Congress. 21/M97. Bore scoring can affect the engine’s performance and longevity if not addressed promptly. The larger 987 S engine is prone to bore scoring. 4 (and 3. Might be some great deals on east coast cars coming up if this idea picks up enough traction. zffkma aoqph rfndh laktj qxzmt zeyhibag claovxm ybpxz eeg crhzs