997 bore scoring repair 6 and 3. 8 engines used in Porsche 911 996 and 997 models, however the 3. They buy a 997 for 15,000 pounds, and it has bore scoring, so it needs an engine rebuild. Always use brand premium gas. This includes machining of the engine case and fitment of Nickies billet aluminum sleeves along with oversized forged pistons which allow for significant increase in engine displacement and output. 1 engines with bore scoring. What causes Porsche Cylinder Bore Scoring? Although there are many contributing factors to cylinder bore scoring in Porsche engines, poor maintenance coupled with the use of A40 approved oils with lower anti-wear and anti-friction additives are likely the root cause of the bore scoring issue and most preventable one. However, it is an Cylinder Bore Scoring Repair Options for Porsche Boxster, Cayman, and 911 Engines LN Engineering 3. Get expert advice for buying a Porsche 911 997 - 06 thru 12. 1 for last 7 years and experienced bore scoring and had a engine rebuild by Hartec. But as mentioned, I drive the car in a way I enjoy it and will fix it if it breaks. May 4, 2023 · True Bore Scoring – Photo LN Engineering 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. 1 and . 4 Boxster/Caymans, it isn't a universal problem. Jan 16, 2024 · Cylinder bore scoring is a death knell for the engine or your wallet as it requires significant repair if not complete replacement. Also, it's not just good enough to check the cylinders through the spark plug. 05 3. Over the last 5 years the numbers of bore scoring cylinder failures have quadrupled here, making cylinder bore scoring the #1 failure that leads to our services being sought out by Porsche owners. Regardless of which model and engine you have, the cost of cylinder bore scoring repair and engine rebuild for Porsche 911 996 and 997 engines is similar. Ok I've done 114k in miles but I'd hoped that I would never get it, as oil & filter serviced 2 or 3 times a year depending on mileage & when (if) tracked. Including 2004 - 2012 Porsche 911, Carerra 4, Carrera 4S, 911 Targa, and 997 technical information. May 11, 2025 · Bore scoring refers to vertical scratches or grooves that develop on the cylinder walls of an engine. Engine piston set for cast iron cylinder repair liners Porsche 997 3. Like with bore scoring, 2. However, with parts such as Westwood ductile iron cylinder liners and Mahle engine piston sets for cast iron cylinder repair liners, you can effectively reme Porsche Engine Failures MADE SIMPLE - Hartech Explain IMS, RMS, Bore Scoring for 911, 986 & 987 JayEmm on Cars 463K subscribers Subscribe Oct 27, 2016 · As a 997. Mar 23, 2015 · However, after years of relatively robust BMWs, I'm a little nervous about the internet scaremongering around 997. Bad fuel injectors, vacuum leaks, or defective mass air flow (MAF) or oxygen We repair the typical Porsche engine problems including IMS failure, scored and cracked cylinders and liners, crank shaft bearing failure & snapped timing chains. Feb 3, 2024 · The background is that I currently have a 986, which has developed a loud ticking or knocking / suspected bore score. In Porsche engines, particularly the M96 and M97 flat-six engines found in 996 and 997 generation 911s, Boxsters, and Caymans, this issue is relatively common. 8L): Bore scoring is rare. 04 3. Introduction to Hartech Engine Rebuilds We repair the typical Porsche engine problems of Intermediate Shaft Bearing failure (IMS), scored / scuffed cylinders, cracked cylinders / cracked liners, crank shaft bearing failure and snapped timing chains. This problem mostly happens with the sixth cylinder of the Porsche 997’s engine as the protective lining between the cylinder and the wall degrades and the cylinder changes its shape due to friction. While cylinder bore scoring has been an issue on a relatively small percentage of 996 and 997 models, it isn't a universal problem. The most problematic engines for cylinder bore scoring at the 3. I talked to a few specialty shops including Flat6 and LN engineering. 9K subscribers 775 Oct 12, 2021 · Elvis walks you through the steps required to fix bore score damage inside of a damaged Porche engine. 3K Porsche 997 Carrera II: How To Fix Bore Score Damage | Wheeler Dealers What bore scoring is & why it can happen to 1999-08 Porsche 911s, Boxsters, & Caymans | 1 of 4 How much does a Porsche Cayman 987 Engine rebuild cost when the car has bore score? My Porsche Cayman S 987 3. How real are these issues on the . Am I just 911 997 Engines & Bore Scoring - My Experience & Knowledge So Far - 15 Diary of a Porsche Specialist How to prevent or slow the progression of bore scoring in your Porsche M96/M97 engine | 3 of 4 Mar 21, 2015 · Bore Score by stuey » Sat Mar 21, 2015 7:19 pm Well guys n' gals it's with a heavy that I have to report that my 997 gen1 that I use daily has got bore scoring to pot 6. Borescope inspections and used oil analyses are essential for early detection of bore scoring. A PPI including cylinder bore scoping is a must to make sure you don't buy a problem car. This means that the price of our service can vary from customer to customer. WHAT IS A SLIPPED SLEEVE FAILURE? Part 1 engine removal STRIPPING A BORE SCORED PORSCHE 997 ( CYLINDER HEAD REMOVAL BORE SCORE REVEALED PART 5 ) Porsche 996 / 997 Engine Rebuild CrankCase Carrier With ARP Bolts (Part 1) Feb 15, 2025 · Rennlist - Porsche Discussion Forums Porsche Technical Discussion Areas 997 Forum Bore Scoring Repair? Ceramic? Tribotex - wow. was founded in the early 2000s to support the development and specialized repair for the Porsche M96/M97 family of engines fitted to Porsche Boxster, Cayman and 996/997 series vehicles. I was just wondering what the prevalence of bore scoring actually is because all the posts in the problems and complaints section that I've been seeing recently has me scared. Oct 4, 2017 · Porsche M96/M97 Bore Scoring issues explained There are many articles online and various posts in Porsche forums about bore scoring issues and engine failure! While cylinder bore scoring has been an issue on a relatively small percentage of 996 and 997 models, it isn’t a universal problem. 6 engines" was asked on the Internet many months ago and since we have repaired increasing numbers with that very problem and written at length on the subject to discuss the causes and solutions. 02/M96. Bore scoring is most common in Porsche 911 vehicles, including 996 and 997 models, fitted with the 3. Bore scoring affects both generations but is much more prevalent in the 997. 4 liter also can suffer from cylinder bore scoring. Ok I've done 114k in miles but I'd ho You may have heard of cylinder bore scoring as it relates to the Porsche 911, Boxster, or Cayman built for the 1999-2008 model years, but chances are you don't know the full story. Jan 23, 2025 · Preventing Bore Scoring in Porsche Engines: The Role of Proper Oil Selection and Additives Bore scoring is a serious concern for many Porsche owners, particularly those with engines featuring Lokasil or Alusil cylinder bores. Rebuilding A Porsche 997 Engine With Bore Scoring For $1300 Nathans Porsche Workshop 24. 69K subscribers 1. Preventing bore scoring starts with understanding its causes and The Porsche engines we most commonly see with cylinder bore scoring that are sent to us for repair include the M96. Luckily there were no obvious indications. Recently I was burned badly by a porsche dealership (Porsche Fort Wayne) on this and wanted to spread the word. Although bore scoring on a 991. Learn what to do if you have scored bores in your Porsche. Cold Starts and Bore Scoring: What’s the Connection? Tony Callas emphasizes that cold starts in low ambient temperatures are a major contributing factor to bore Is bore scoring acceptable in a Porsche engine? The short answer: no. It’s very similar to its cousin, Alusil, which is also a technology developed by Kolbenschmidt. Learn more from the experts. 2 and 997 engines as well as with the M97. When your 997 starts developing wear/scoring, it’s a gradual process and the car can be driven for many years, as long as the oil and servicing is kept up to date to extend this period as long as possible. 1, budget on a fighting fund (engine rebuilds go for about £6-12K in the UK), knowing you'll get most of it back when you sell. Jun 15, 2025 · 997 Forum - Porsche 911 (997) discussion, how-to guides, and technical help. read more My Porsche Cayman 987 has Bore Score in this video i will cover what the signs, sound and symptoms of this engine failure is and the cost to go and fix it. Mar 3, 2024 · Bore scoring refers to the formation of scratches, grooves, or marks on the cylinder walls of an engine. 8 Porsche 911 996 and 997 engines as well as with the 3. A video by Invictus Motors at RSR Porscha in Bishop Stortford to show borescoping or borescope engine inspection on a Porsche 997 4S 2006. 1's with cylinder bore scoring. Aug 9, 2011 · Scoring was more commonly caused by full piston seizures in which the piston grew too big to fit in the bore with some clearance and the resulting additional force between the piston and cylinder wall squeezed out the oil film resulting in metal to metal contact "" the increased friction causing local melting of the piston surface and scoring 997. To my surprise, he mentioned that actually he is starting to see more 2nd gen with bore scoring! But as these cars have gotten older, bore scoring is the number one failure we see, specifically 996 and 997 models. 2 motors? The Porsche engines we most commonly see with cylinder bore scoring that are sent to us for repair include the M96. 1 v 997. I own a 3. If the engine checks out, there are numerous steps that can be taken to reduce the chances of having bore scoring. On a positive note, Boxster and Cayman So bore scoring on its own is not a 911 problem, but a longevity problem. It's best to have an independent third party do the PPI so you get an unbiased review. When the required iron-clad piston coating fails or there are insufficient exposed silicon particles remaining on the face of the aluminum cylinder bore to support oil film formation, there will be It's telling that pre-2008 997. How does bore scoring happen? The single biggest issue with the 997 engine is cylinder bore scoring. Below we explain why Slakker is the best choice to rebuild your Porsche engine. 03/M96. 8L Bore: 100. CYLINDER BORE SCORING The Boxster, Cayman, and 911 from 1997 through 2008 utilized a hypereutectic engine block casting technology called Lokasil. Like anyone about to crack into a Make/model, went to youtube to fain insight potential issues and maintenance worth noting. 2 with the later, supposedly 'bore-score proof' engine. In Porsche vehicles, this issue has been particularly associated with certain models equipped with the M96 and M97 engines, notably the 996 and 997 generations of the iconic 911. IMS hasn’t been done, RMS has a small leak. Repair is preferred because replacing the engine with another one, rebuilt as stock or not, doesn’t solve the issue. Jan 20, 2022 · Thanks to Jeff for posting the following. 7 base Boxster and Cayman models do not suffer from cracked cylinder bores or d-chunk failures. Jun 16, 2022 · buying 997. Cylinder scoring is typically the result of a piston striking the side of the cylinder causing grooves in the cylinder wall. 67K subscribers Subscribe Oct 19, 2024 · Hi All, I’ve got a 997. Warranty and Repair Options for Bore Scoring in Porsche Engines If bore scoring occurs in a Porsche engine covered under warranty, your best bet is to have it repaired through authorized Porsche service centers. 1. 1 engines - notably bore scoring and potential expensive rebuilds. The cost of cylinder bore scoring repair for Porsche 911 996 and 997 models can run between $5000 and $6000. Each of our porsche engine rebuilds are bespoke, with customers requiring different specifications for their build. On a positive note, Boxster and Cayman Porsche engines with Lokasil and Alusil engine blocks can suffer from bore scoring which will result in an audible tick, not to be mistaken for injector or high pressure fuel pump noise common to Well guys n' gals it's with a heavy that I have to report that my 997 gen1 that I use daily has got bore scoring to pot 6. 1 will be cheaper than 997. 5 and 2. 8 Porsche 911 996. To a lesser extent, we also see M96. The 3. Learn about the costs associated with repairing cylinder bore scoring in Porsche 911 996 and 997 models. He says, “We see more 997s with cylinder difficulties here at Autofarm than IMS concerns. 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 Oct 11, 2010 · "Does anyone know why cylinder 6 is frequently scoring on the 997 3. If you're unfamiliar with this problem, it's when carbon deposits accumulate on your engine, creating problems that can lead to major repairs. One of the first signs of a scoring problem is excessive oil use, misfires, fouling plugs and More information about the costs associated with fixing Porsche bore scoring can be found at Understanding Cylinder Bore Scoring Repair Costs for Porsche 911 996 and 997 Models . Owner Mikey Wastie says that piston damage and bore scoring are the main issues with 997s. 🇬🇧 Catch full episodes of Wheeler Dealers on discover Feb 3, 2024 · Given your previous bad luck re bore scoring I can understand your concerns! Just to take up a point you made regarding a 997 vs 991, I hope you realise that the Gen2 997 and 991 share the same DFI engine, although there could have been some very minor updates in between. 8mm Rod: 141. Alusil is utilized by many European manufacturers and many engines from Porsche have used this casting technology for decades including Porsche 944 Porsche Bore Scoring Fix And Symptoms How Much Does It Cost ??? For Business Contact :Nathan's Porsche WorkshopPo Box 115 Altenburg Mo 63732nathan. 1 is rare, it does happen, and as the cars get older, we are seeing more instances of scoring and piston seizing. Feb 13, 2020 · After going through a late night google rabbit hole on bore scoring I'm suddenly really worried about this. Our Porsche technicians are extremely knowledgeable and take great pride in every engine repair completed. This condition can lead to increased oil consumption, reduced performance, and costly engine repairs. Mar 21, 2015 · Bore Score by stuey » Sat Mar 21, 2015 7:19 pm Well guys n' gals it's with a heavy that I have to report that my 997 gen1 that I use daily has got bore scoring to pot 6. What is Porsche Bore Scoring? 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 is not experienced at all on DFI engines of the second-gen Porsche 997 or the first generation turbos (and GT models) and is far more likely to occur on 3. Cylinder bore scoring is a serious issue with Porsche Boxster, Cayman, 911 (996 and 997) engines. 1s are going for around 35% less than an equivalent post 2008 997. The Porsche engine rebuild specialists at LN Engineering can provide assistance with bore scoring repairs for Porsche 911 996 and 997 engines. In some cases, if the issue is caught early and falls within warranty coverage, repairs or engine replacements may be fully covered. Bore scoring is a much bigger concern than IMS for 2006-2008 model cars (for 2005, roughly equal risk). The Porsche engines we most commonly see with cylinder bore scoring that are sent to us for repair include the 3. 99mm Comp Height: 32. Porsche Bore Scoring There are many articles online and posts in Porsche forums about bore scoring issues and engine failure! While cylinder bore scoring has been an issue on a relatively small percentage of 996 and 997 models, it isn’t a universal problem. 4 engine rebuild is now complete. of Total Seal Piston Rings explain what bore scoring is and why it happens. They Mar 21, 2015 · Bore Score by stuey » Sat Mar 21, 2015 7:19 pm Well guys n' gals it's with a heavy that I have to report that my 997 gen1 that I use daily has got bore scoring to pot 6. 8 models. I need to get rid as I don’t have the time or money to dive deep into the engine. One of the first signs of a scoring problem is excessive oil use, misfires, fouling plugs and O2 sensors and the engine We would like to show you a description here but the site won’t allow us. How does bore scoring happen? Due to the layout of the open deck crankcase on 996/997 models, the cylinder banks are not rigidly The cost of cylinder bore scoring repair for Porsche 911 996 and 997 models can run between $5000 and $6000. Problem with cylinder bores The Bore scoring issue is one of the most relevant problems that potential owners of the 997 should pay attention to. 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 More information about the costs associated with fixing Porsche bore scoring can be found at Understanding Cylinder Bore Scoring Repair Costs for Porsche 911 996 and 997 Models . 00mm Stroke: 82. This is a great read for anyone concerned about or experiencing cylinder bore scoring and how to deal with the problem. What is a slipped sleeve failure? A Porsche M96 or M97 engine rebuilt using Nickies sleeves addresses all known issues including cylinder bore scoring, cracking of liners (also known as a d-chunk failure), and slipped sleeves Mar 21, 2015 · Bore Score by stuey » Sat Mar 21, 2015 7:19 pm Well guys n' gals it's with a heavy that I have to report that my 997 gen1 that I use daily has got bore scoring to pot 6. 95mm Pin Diam: 22mm Weight Group: 423g Related reference numbers Related, superseded, cross reference or alternative numbers for comparison. Cylinder Bore Scoring in Porsche Engines Unfortunately, many Boxster, Cayman, 911, Cayenne, Panamera, and Macan engines with Alusil or Lokasil engine blocks will suffer cylinder bore scoring. While there I learned about the risk of bore scoring and had them scope the engine. The inspection required them to drop the pan to check the bottom of the pistons. But as these cars have gotten older, bore scoring is the number one failure we see, specifically 996 and 997 models. I'm interested to hear Feb 8, 2024 · 2. 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. The purpose of bor What if you already have Porsche bore scoring? 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. On the naturally aspirated Cayennes, they used something called Lokasil to coat the cylinder walls. 997. In the case that you are not in a cold climate…. Fits: Porsche 997 3. Jan 31, 2021 · 911 997 Engines & Bore Scoring - My Experience & Knowledge So Far - 15 Diary of a Porsche Specialist M R SPORTSCARS PORSCHE SPECIALIST 6. 8 997. 6 and M97. If you get a 997. All base and S models can suffer from cylinder bore scoring. 8L set of 6 with performance rings set included. Thoughts on this PPI? Is Bore Scoring really something to worry about if there’s a small amount? Was looking at 2003 C4S and a PPI shows scoring on one of the cylinders. Common Porsche Issues We Address IMS bearing failure (996/997) Bore scoring (Cayenne V8) PDK transmission issues Air-oil separator failure Coolant pipe leaks (Cayenne) Bore Scoring (996 3. However, it is an Bore Scoring on the Porsche 997 Bore scoring is not a widely experienced issue on 997s, despite what many internet sleuths may have you believe. 22 3. I May 21, 2024 · When my spark plugs were getting replaced last week, my buddy stuck his borescope into my cylinders to check the health of my cylinder walls @ 51,700 miles. 996 and 997 bore scoring is a much more common mode of failure than cracked cylinders on 3. 8 engine. 2 and 997. 4 996. 2 but if looking for a manual gearbox then you need to look at 997. But how much scoring is too much? In this video, we break down everything Porsche owners need to know about bore scoring Jan 19, 2013 · When we repair engines with damaged or cracked bores we use a manufactured alloy cylinder with Nikasil bore finish in exactly the same way as all those engines that did not have bore scoring problems. In addition to the number of complaints, bore scoring is a much more serious issue than a warped door panel or a glare from the dashboard. Learn about the costs associated with repairing this issue, including Porsche 911 996 and 997 engine Jun 9, 2022 · Porsche engines with Lokasil or Alusil engine blocks can suffer from cylinder bore scoring. The Hartech Porsche Engine Rebuild Approach - The Porsche engines we most commonly see with cylinder bore scoring that are sent to us for repair include the M96. 01 3. 1 but remember to have a contingency fund in case you need an engine rebuild. Despite being essentially the same car. 4 engine used in Cayman S and late Boxster S models. Wondering if the result from this PPI is an absolute deal breaker? Thoughts? 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. The problem seems to be solved by Porsche by the time they got to the 9A1 motors. 6. Jan 8, 2025 · The number of complaints about bore scoring earned it a podium position on our list. Flat 6 Innovations, a division of Raby Enterprises Inc. 4L, 997 3. Learn the proper way to bore scope and diagnose cylinder bore scoring in your 97-08 Porsche Boxster, Cayman, or 911's M96/M97 engine from the experts. By understanding the causes, symptoms, and available solutions, owners can take proactive measures to address bore scoring before it escalates into more significant problems. Give us a call at 815-472-2939 to discuss Porsche cylinder bore scoring repair costs and engine rebuild costs. We highlight concerns and give practical information that 997 buyers need. Dec 11, 2019 · As with any Porsche you plan to purchase, look for detailed and complete service records that meet or exceed Porsche’s recommended intervals. 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. 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. Bore scoring is a critical issue in certain Porsche engines, especially in 996. Ok I've done 114k in miles but I'd ho STRIPPING THE BORE SCORED PORSCHE 997 ( SUMP DISASSEMBLY PART 6 ) STRIPPING A BORE SCORED PORSCHE 997 ( CYLINDER HEAD REMOVAL BORE SCORE REVEALED PART 5 ) Sep 23, 2022 · Cylinder bore scoring is a severe issue for Porsche drivers. Many of them run well, and some have a THE TRUTH !!! The Porsche Bore Score Money Scam Revealed !!! Well guys n' gals it's with a heavy that I have to report that my 997 gen1 that I use daily has got bore scoring to pot 6. 1 models. 1 owner of a 2007 car, I worry a little about bore scoring and IMS and generally big bills. 6L, 987 3. 1 with cylinder scoring has had cylinder liners installed by Hartech, is that problem then dealt with for the foreseeable future? We would like to show you a description here but the site won’t allow us. Which Porsche Boxster and Cayman engines suffer from cylinder bore scoring? Bore Scoring, 997 Bouncing between a 997 S and a 987, ideally would love to be in the Carerra S to simply have the extra seat for my 6yr old. More information about the costs associated with fixing Porsche bore scoring can be found at Understanding Cylinder Bore Scoring Repair Costs for Porsche 911 996 and 997 Models. 2 Bore scoring Hi all, was looking to buy a 997. Starting with our Nickies cylinders and new pistons and rings, we can provide all the parts you need to rebuild and upgrade your engine to . In this video All 996 and 997 models are susceptible to bore scoring. Carl Spencer explains the steps he took when his 997 suffered a cylinder bore scoring failure. This coating is very prone to failure, which leads to high friction, cylinder scoring, which eventually causes low compression pressure, oil consumption and a tell tale knocking noise Bore Scoring on the Porsche 997 Bore scoring is not a widely experienced issue on 997s, despite what many internet sleuths may have you believe. 2 IMS and Bore scoring. I have yet to hear of a problem with a 991. The simple truth is that while cylinder bore scoring has been an issue on a relatively small percentage of 996 and 997 Jul 11, 2025 · In Porsche models like the 996 and 997 911, 986 and 987 Boxster, and Cayman, bore scoring is most commonly associated with the M96 and M97 engines, particularly on cylinder bank 2. 01/M96. 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 Learn the proper way to bore scope and diagnose cylinder bore scoring in your 97-08 Porsche Boxster, Cayman, or 911's M96/M97 engine from the experts. 4 engine used in Cayman S Apr 14, 2022 · Cylinder scoring is the most common issue that results in engine failure for 997’s and the M97 engine. 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. 197837037 Owner Mikey Wastie says that piston damage and bore scoring are the main issues with 997s. The car seems to run ok, no clacking noise etc apart from the cylinder 6 spark plug being covered in carbon build up (all sorted now). 4 engine fitted to Porsche Cayman S and Boxster S vehicles is also susceptible to bore scoring. Starting with our Nickies cylinders and new pistons and rings, we can provide all the parts you need to rebuild and upgrade your engine to $20K Invested to Start an Auto Repair Shop (Did it Work?) Building my DREAM PORSCHE 997 Carrera S - Full Transformation Porsche 996 & 997 Bore Scoring Explained | What’s Real and What’s Marketing Aug 26, 2023 · Early signs of bore scoring- what happened after? - Page 2 - 911/Carrera GT - PistonHeads UK Gassing Station Porsche 911/Carrera GT Last night I watched a new edition of Wheeler Dealers. 8 engines of first-gen standard Porsche 997s than those holding a 3. Cylinder bore scoring can cause engine damage in Porsche 911 996 and 997 models. It is common knowledge that colder climates accelerate an M9X to develop bore scoring and this is generally most cases. Bore Scoring (996 3. Porsche Engine Rebuilds at RPM As your local Porsche specialist, we are dedicated to providing a first-class service and this is especially prevalent when it comes to our Porsche engine rebuild and repair service. I’m unsure what to do - sell or engine rebuild While cylinder bore scoring has been an issue on a relatively small percentage of Carrera engined 997S models and some 3. These Porsche engines are susceptible to bore scoring, spun rod bearings, cracked cylinders, and IMS bearing failures that lead to an engine re-build being necessary. I believe what we've uncovered is either artifacts from lighting, or the beginning of extremely light bore scoring. We would like to show you a description here but the site won’t allow us. The complaints were logged against mostly the 996 and 997 generation cars as you would expect. 1 C4S with 100k miles done - just found out that the 6th cylinder is scored. youtube@ya Porsche Bore Score How It Happens & Can It Be Prevented ?? Add Me On Instagram @BMWDoctorOfficialGo to My Spotify Playlist which has all intro songs used on Porsche 997 Carrera II: How To Fix Bore Score Damage | Wheeler Dealers Porsche Engine Failures MADE SIMPLE - Hartech Explain IMS, RMS, Bore Scoring for 911, 986 & 987 In this first of four videos about bore scoring, Charles Navarro of LN Engineering and Tribologist Lake Speed, Jr. I would not hesitate to own a 997. 21/M97. 2 nor would I focus on the possibility of cylinder scoring; although anything can happen. In this video i explain everything you need to know about Porsche bore scoring , what to look out for and what are the odds of your Porsche having this issue Dec 9, 2024 · Discover the average costs for 997 bore scoring repair in the UK, including essential factors influencing pricing, typical repair options, and expert insights to help you make informed decisions for your vehicle maintenance. While speaking with the guy about the cost (£12-16k if you are curious) I obviously asked if i was better off with a 2nd gen. Avoid a lot of start-ups and stops (especially cold starts). Tribology Notices Follow Rennlist on Facebook for News and Forum Updates We perform a good number of PPI's and have run into a substantial number of 997. Price is mid 30’s. I had hoped to wait until May 4, 2015 · Porsche 997: Why the IMS Bearing Issue is Overblown There are multiple online claims of Porsches suffering of IMS bearing issues, but how much of that is supported with facts? Learn more about this issue here. Aug 20, 2015 · When a 997. Water-cooled 996 or 997 engine rebuild with bore scoring repair and complete engine overhaul: £13,000-£15,000. We recommend Slakker Racing Development rebuilt Porsche engines. 1 with a trashed engine, and du a Hartech rebuild (UK Based specialist).