Porsche 997.1 Engine failure
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- Опубліковано 7 лют 2025
- A while back I bought a damaged 911 repaired and got it re-categorised. I thought I was safe from the IMS and Bore Score Horrors stories. But I was wrong and this problem was an issue ive not heard of before on a 997!
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Those Engines weren't Porsches finest hour. Shocking for such a Prestige Brand. GT3 and Turbo Engines the only ones that aren't made from chocolate.
Not true. It’s actually a very small percentage of these engines that had problems. But, because it’s a Porsche it gave the model a bad rep. I drive a 997.1 and it takes anything …..
@@mortenberg2897keep telling yourself that mate.
@@mortenberg2897 Who cares if its 1% or 10% that are problematic; it might as well be 100% if it happened to my engine. This sort of thing should not happen to any modern car, let alone a premium brand that prides itself on motorsport.
@@I999-g2s i can tell u aswell mines been perfect and totally trouble free looks the nuts sounds the nuts bet you don’t even have one and as the man says it’s a small percentage that suffer but you only get to hear from the unlucky ones
@@MrAndyS "bet you don't have one" 🤣 yes, and let me guess, your daddy's bigger than mine too...
Best of luck from one 997.1 S owner to another. Subscribed to follow your journey.
You seem to know what you’re doing. Best of luck with it - If you can get away with the existing block then you’ve really lucked-out. If you can increase the capacity and get Nikasil liners, then you’ll get a lovely performance gain as a reward for all your difficulty, as well as great longevity.
Again, best of luck mate!
Best of luck with the rebuild! I used to own a 986 Boxster S and would worry about these kind of issues. It reflects very badly on Porsche normally their engineering is very reliable.
These things just aren't worth owning. They don't all go wrong, but too many of them do.
@@BerwhaleTheAvenger-b5s mines my daily driver been perfect 67k very hard miles up to redline nearly every time i drive it doesn’t burn any oil or use any water mobil 1 every 5k. don’t idle them to warm up either just start and drive til the oils warm then rag it. if your scared or can’t afford it buy a jap car 😎
997.2 is the answer
Good luck.
You're going to get this done how most people with some mechanical knowledge would.
Good find on the crank regrind. Thats a game changer
Unfortunately these Porsches 996 997 era are best avoided except for the Turbo and GT3 engines.
You're not a Porsche owner 😅
Those M96 engines are so much better than their reputation. Should they fail, they're affordable at a breakers yard.
@@thefreedomguyuk Who wants to go to that trouble? You' re right, I'm not a Porsche owner for good reasons.
@@thefreedomguyuk You only have to read Hartech's guide to see that you're wrong. Crankshaft main bearing wear is almost certain at 80,000 miles, for instance.
Bad luck, but top job dropping the engine on your driveway. As someone else commented, I'd be trying a bit of digging to find the rebuilder that did such a poor job. See what they have to say. Good luck!
This a good old school mechanic for you to young to remember this is how most people use to fix there cars 🚘 no the drive way 😂 you had to be a good mechanic 🧑🔧 do do this I was thinking of buying one l think l will buy a Porsche 911 997 dot 2 instead. Good honest video keep them coming mate 👏🏽🥂
sorry for your loss but fair play to you sir for having a go👏
Lost count of the amount of 997's I've bought and sold, not saying that to be big headed or show off, but just to reiterate, if you want the pretty much worry free engine go for the 3.6 unit in a Gen 2 car from 2009 model year to early 2012, they are pretty much bomb proof with none of the bore score or MMS worries ...... a much easier car ( reliability wise ) to live with.
I have a 997.1 and i agree but its £10,000 more at least for .2. Ive had no issues im at 77k miles
@paulcampbell114 They are not all bad, and many by now would have had seals, bearings, engine rebuilds etc: just that 997.2 ownership so much more worry free, but yes I agree, Gen 2 cars are quite a bit more to buy.
@@paulcampbell114If and When it the Engine let's go. 10k at the least for an Engine Rebuild. So unless you save and have a just in case Rebuild fund, then you haven't really saved any money compared to a 997.2.
@@markwalton8644 I agree, the problem is we all know the 997.2 was only around for just under four years, and if you're talking Targa ( one of the rarest ) or Turbo ( just as rare ) they are around in such small numbers, especially when you factor in the banking recession of 2008 onwards and the smallish numbers sold new in the UK, which incidently was lower than at any other time in the 997's production history, hence prices have remained pretty firm, I'm lucky enough to have a 2011 Targa 4 that is lowish mileage and fully optioned, it is still holding its own even in the current market. When you factor in the scacity, reliability of the engine, and the PDK box it suddenly starts to make financial sense, to me anyway.
@@Broomehall
Fair Enough. Like most Porsche owners, you know there foibles. What I would say they need Porsches ( or Any Car) need Regularly Driving. Low Mileage doesn't always mean Reliability.
I feel your pain fella coming from a 997.1 owner…going to Hartech you won’t go far wrong
Rebuilding my vw 1.8t after calamity. Im so close to being done. Watching for inspiration.
Do it yourself I did a 996 and it ran lovely I also took the engine out on my drive and built it in a shipping container I simply couldn’t afford to take it to a specialist, they are also easy to remove the engine ,
This is a mad thing to try and do, good luck hope it works out! Subbed.
Mine already had the rebuild at Hartech , before I bought it , it’s a c4S 997.1 2006 with a maintenance records in a detailed file showing around 23k worth of maintenance history
It really did go bang! Hopefully you can do a rebuild with uprated components. Car looks clean, so well worth a new engine. will follow with interest, keep posting. 👍🏻
Fair play to you for giving it a go
Sad and all too common on these generation of porsche, seen so many cases where people's dreams are shattered with these cars, and they are getting at an age where more and more are failing 😢 good on you though for doing it yourself and tbh it's the only way without making it completely financial nonsense
According to my parts invoices it’s still financial nonsense
Your right, cost of parts alone are ludicrous, these cars are purely done for the love of and despite what people say they certainly aren't an appreciating asset. Unless you have something special you will always loose
Bad luck mate. Good luk with the rebuild.
So glad I sold my 981s, many stupid issues that were not easy or cheap to fix. Cool cars but would not run one again without a full warranty.
Ugh, I feel for you. I have a 997.1. Ive always heard to never put iron liners in when repairing bore scoring. Hartech has a shop over here in the US that they work with called Slakker Racing Development. They use their techniques and when the time comes, that’s where mine is going. Sub’d to follow the process. Good luck!!
thanks, I hadn't heard of them and will look into it (for when the time comes) am going to start running dt-40 for more lubricity.
Yeah, I’ve been running Driven Oils. Last time I switched it to FR50 from DT40.
@@K1dPhresh1 what was your thinking behind the switch? I spoke with Lake Speed earlier this summer (knew him my motorsports days) but I was on the fence as to which one actually.
Bore scoring concerns/preservation. Following a thread on Rennlist it was recommended you can run FR50 because it’s a little higher viscosity. I believe it was Charles Navarro of LN Engineering that gave some input. Since then, they’ve also recommended DI-40, which was formulated for direct injection engines but seems to also do fine in the regular fuel injected M97 engines. I think the DI-40 recommendations comes after Charles and forum members talked to Lake. So it all seems to be pretty sound advice from experts in the field.
Would have a word with whoever build the engine.
I bet they re-used the old rod bolts
They don’t exist anymore. Wonder why!
Who was it?
Great video look forward to seeing your progress,I feel your pain been there and done it👍🏼 don’t care what anyone says these engines are💩, good luck🤞
Hartech won’t steer you wrong with advice on the best route forward 👍
Skip to 11.30 for the sensible words
Good luck! Hope to see you back on the road soon
Said it before, 997.1's are a time bomb. Some do some dont. Should not have ever bought a car without IMS done
Problem wasn't anything to do with IMS.
Pile of *ite these Porsche engines. I feel for you and hope you get it sorted.
Blaming the big end bolt for initiating this failure doesn't sound kosher. It's bent because the piston was obstructed in the combustion chamber whilst the crank was spinning. More likely the liner let go, some ended up in the chamber and that took out the valves. Who did the liners? They ought to stand behind their work. Put an LSx in there - the Porsche IMS engines are timebombs.
I’ve heard a few explanations., all different. All I can say the other bolt was stretched.
LS engines are great, but they’re not a flat 6. Yes, the M9x engines are time bombs, but he’s past that. Now he can rebuild it with the right liners and modifications (Hartech know all this) and enjoy the longevity that Porsche should have built-in, in the first place.
Love the cars, but the brand? Nah!
Yes please no, don’t do an LS swap.
Maybe drop in a Subaru turbocharged engine LOL
This is terrible misfortune. Sorry for you. I have looked at potentially buying one of these cars for years now.
Although I could comfortably buy one, the case for doing so, here in the UK at least, has become ever more tenuous to the extent that I now believe it is a non-viable and pretty pointless proposition.
It’s not just that this sort of thing seems far too often talked about to be that rare an occurrence. Then 🎉there are other constant big maintenance costs, the over £700/year VED on post-2006 cars, the ever increasing and cynical ‘average speed’ restrictions etc etc. There are also too many of these 997 Carreras for them ever to have any real investment value, in any reasonable time frame.
To me at least, it just seems the hassle plus the constant threat of ‘grief’ is no longer worth it.
Don't be sorry. Was an excuse to make it better with Hartech cylinders. These shouldn't considered an investment. theres too many of them.
I feel your pain. 996s and 997s are an absolute bag of shit. My 996 had a cracked head on the usual side and couldn't get a replacement for shit. In the end I found someone who modified two boxster 3.2 heads for it. At least it was a doddle getting the engine out. Then cue the new clutch, ims, rms seal, oil cooler and all the other bollocks. It cost a bomb and still just as slow when it ran again 😂
Yes heads for 997 look non existent.
@AntGstuff I was told to order them from porsche was a seriously long wait and about 3 grand a head
@@Trevs40 😮
@AntGstuff all the best anyway mate. I'll be checking on progress.
Such a shame , looks like your in a world of pain , it's certainly going to keep your mind occupied sorting this out , if it was me I would ship it off to hartect ....you will save a load of cash as your doing the fitting yourself ... good luck
bad news that, £15k car with a £15k engine build. best off breaking it for parts
Best way to get the engine out like that is once the engine is on your cradle, use the hoist to lift the rear of the car up and then pull the engine out.
I did consider that.
It would possibly destabilise the quick jacks though. I think you did the right thing.
Poor chap. 911 on a budget never works. It's a breaker all day. Start again.
It would seem that this engine had been incorrectly assembled during the earlier rebuild. Is there no chance of raising a civil case against whoever did it, assuming it was a business ?
Thanks for sharing your story and sorry to see. I hope you get a way forward and look forward to hearing more about what you decide. Best Wishes with solutions I've a Gen. 2 DFI so hopefully, touch wood that I'm OK. I thought there would have been some early warning signs if it was going to let go and you could have taken pre-emptive actions. P.S .What jack is that you are using to lift off the ground, 'Dracks Jacks, can't find that?
Quick jacks 😂 he’s a brummie
@@rossbethell4187 😃Great.. Lol
Was it over-revved post-rebuild prior to the crash, stretching the big end bolt?
Not according to diagnostics
I would never trust a full engine rebuild on a modern engine. It is not like assembly in the factory. It is like major heart surgery, even with the best surgeon in the world the risks can be high. Also I could not trust a car that has a decimal point in the name, but that is something else.
Hartech can be trusted, but in almost every other case you're right.
Awful. Just awful. But thanks for a really informative video. Good luck.
4.1 Hartech rebuild time.. every cloud
Great job stripping out engine, well done.
Can I just say, which came first chicken or the egg.
If your shell bearing failed it would smash your bottom end causing piston to hit valves.
Different to say which component failed first.
@@aservclive I did some research and some specialists have seen rod bolt failure before. Which seems to fit with what I found.
Is the bolt necked?
Anyone know what the waiting time is for a Hartech rebuild.?
They have a long waiting list.
These older cars are not really worth owning. They are already worn out and even if you pour money into them, they will never be as good as when the vehicle was new or lightly used. Next time buy something quite a bit newer. I myself, I always buy new. My current car is a 2023 Mustang GT 6 Speed. It's a base model which means I can mod the car if I wish, but I won't. It's fine as is.
I think there’s more to this story than perhaps has been disclosed, but it’s very easy to beat up on the poor 997.1. Engine failure? Yes, that must be an M97. Perhaps unbeknown to you, the car wasn’t a write for what appeared to be a light repair. Salvage cars often hide a plethora of faults, ask @Samcrac
It had a full pre purchase inspection literally a month before it was damaged. Car was well looked after. Won’t comment on the previous rebuild.
my 997 locked up after 339,000 km,i dont give a f,,,,,,,, you just need a half honest mechanic ,because work wide mechanics want 30k for a rebuild,parts are only 6k usd at the most .
like a beautiful woman, the 997.1 3.8 will always be unreliable. Avoid! not worth the risk.
You need lee Jenkins mate hartek hope you can salvage something also lived through a failed engine rebuild
Mate what has happened is the steel liner has slipped and the piston jammed and you spun the crank bearing steel liners do not work on open deck blocks
How much the the hartech cylinders and block work?
Bad luck.. Call Hartech or AMS 10-12k rebuild
Put the Honda engine k20a 2 kit in it. Hi revs more power, cheaper.
Biggest load of utter junk those old Porsches are .
I’m a Porsche 997.1 owner. Stop doing this yourself. Take it to a proper specialist on a flatbed and let them take it out properly and safely. Then let the engine be stripped to work out exactly what needs doing or replace the engine
Too many cowboy engine rebuilders,I wouldn’t buy a Porsche with a rebuilt engine apart from hartech rebuild,but kudos to you if your going to attempt it yourself,your obviously no stranger to the spanner’s.i look forward to future videos.
There are many people who have rebuilt Porsche engines. They are just an engine, they are not filled with some type of German magic. Sure the best option is a Hartech re-build, but I do all my own service and as long as you follow good processes, you are good to save heaps of money.
Where’s the fun in sending somewhere else?
@ give it to folks that have the experience and knowledge of repairing these engines and get a warranty for their work. My M97 engine developed bore scoring when it was only 4 years old and out of warranty. At the time Porsche contributed 75% to the costs of fixing it. The car has been faultless, uses no oil, never smokes and is 100% reliable. We enjoy multiple European road trips with zero issues
That’s not what they do on you tube
Only buy the Turbo or GT3
Sound quality was really bad trying to listen to what u saying
Fuck it, put an RS engine in it
LS V8 swop or Honda K20/24 turbo build.
Not many LS engines in the UK .
Are you related to that builder that has a youtube channel you sound exactly the same !
No, what channel is that? be interesting to see how I sound :)
@@AntGstuff MR A BUILDER
@@keyo525 Mr 911 Rebuilder? ;)
break it for parts and buy a post 2010 boxster or cayman.2 much better use of time and money.
Ninemeister warrington speak to Colin
£12,000 for a new engine rebuild
Yep, I’d be mad to rebuild it. Tune in for the rebuild!
Noise interference is annoying.
Noted
@AntGstuff Thanks 👍