Zelrik911 Posted 14November, 2018 Report Share Posted 14November, 2018 15 hours ago, GUT said: New engine - done by the dealer. Sounds good to me. I don’t really think matching numbers is a concern with these. Yes - this is a GOOD thing. These engines have a bad failure rate, (probably 40% as Sean suggests) so the newer engine the better. Two close friends bought new Boxsters and both blew up for no reason. They were driven harder than the wife's Corolla, but by experienced and skilful drivers. Porsche gave them both super good trade-in deals & they both have/had subsequent newer 911s. Prestige wins over dodgy engineering. I dont think Boxsters will ever be 'matching numbers' collectable, but in my all-makes car club the number of Box's is growing quickly. Link to comment Share on other sites More sharing options...
Ameloblast Posted 14November, 2018 Author Report Share Posted 14November, 2018 I decided to go ahead and get the vehicle. The Porsche specialist where I did the PPI also thinks that it's actually a good thing that the engine was replaced. We know that it was replaced in 2012, which I assume Porsche has already sorted themselves out and wouldn't put in another new engine with a bearing that is known to fail. So rather than having an original engine which is kind of a ticking time bomb of IMS bearing failure, I'll take that as the IMS bearing issue had been sorted in this car. Or if the engine was replaced for any other reason, it was a job done by an official Porsche dealership so I assume that the workmanship is of acceptable standard. Thanks for all the input and advice. Link to comment Share on other sites More sharing options...
Buchanan Automotive Posted 14November, 2018 Report Share Posted 14November, 2018 13 hours ago, GUT said: New engine - done by the dealer. Sounds good to me. I don’t really think matching numbers is a concern with these. This is quite rare, only cars where the failure were within 6months or so got a new power unit. Most engines were sent straight back to Porsche without being dismantled by the dealer. These engines were then used as cores to build power units for other failed engines around the world. Basically they try and salvage as much as possible from the failed unit and fill in the rest with new parts. There have also been cases of remanufactured units being welded back (for instance say a broken crankcase) and then some new parts fitted and sent out to dealers as a unit for replacement. The issue was that these remanufactured units were the same as the units that failed and have the same failure rate and failure modes. Even new power units had the same failure rate and failure modes if you were to get one. Some M96 engines have been replaced multiple times. Some have never been replaced. I can say that during their highest exchange of remanufactured engines a local dealer was doing up to 4-5 engine swaps per week. regards Sean Link to comment Share on other sites More sharing options...
StevepGT3 Posted 14November, 2018 Report Share Posted 14November, 2018 17 minutes ago, Buchanan Automotive said: This is quite rare, only cars where the failure were within 6months or so got a new power unit. Most engines were sent straight back to Porsche without being dismantled by the dealer. These engines were then used as cores to build power units for other failed engines around the world. Basically they try and salvage as much as possible from the failed unit and fill in the rest with new parts. There have also been cases of remanufactured units being welded back (for instance say a broken crankcase) and then some new parts fitted and sent out to dealers as a unit for replacement. The issue was that these remanufactured units were the same as the units that failed and have the same failure rate and failure modes. Even new power units had the same failure rate and failure modes if you were to get one. Some M96 engines have been replaced multiple times. Some have never been replaced. I can say that during their highest exchange of remanufactured engines a local dealer was doing up to 4-5 engine swaps per week. regards Sean Hence the term Shitloads Link to comment Share on other sites More sharing options...
Sustenpass Posted 14November, 2018 Report Share Posted 14November, 2018 1 hour ago, Buchanan Automotive said: This is quite rare, only cars where the failure were within 6months or so got a new power unit. Most engines were sent straight back to Porsche without being dismantled by the dealer. These engines were then used as cores to build power units for other failed engines around the world. Basically they try and salvage as much as possible from the failed unit and fill in the rest with new parts. There have also been cases of remanufactured units being welded back (for instance say a broken crankcase) and then some new parts fitted and sent out to dealers as a unit for replacement. The issue was that these remanufactured units were the same as the units that failed and have the same failure rate and failure modes. Even new power units had the same failure rate and failure modes if you were to get one. Some M96 engines have been replaced multiple times. Some have never been replaced. I can say that during their highest exchange of remanufactured engines a local dealer was doing up to 4-5 engine swaps per week. regards Sean Sean, what proportion of the cars you’ve seen have failed due to Bore Scoring? This doesn’t seem widely discussed in Australia, but seems to be of concern on M96 and 97 engines in the UK and US. Link to comment Share on other sites More sharing options...
XLR8 Posted 14November, 2018 Report Share Posted 14November, 2018 Talk, don't walk (yet). There may be a perfectly reasonable story to this car, and it might just be a great buy. Or .... I have found that the way a seller deals with you, and the gut feel you get is a very fair indication of what you are getting into. I agree with @GUT, these have another 20 years before matching numbers is likely to make much difference, if ever. Link to comment Share on other sites More sharing options...
Buchanan Automotive Posted 14November, 2018 Report Share Posted 14November, 2018 57 minutes ago, Sustenpass said: Sean, what proportion of the cars you’ve seen have failed due to Bore Scoring? This doesn’t seem widely discussed in Australia, but seems to be of concern on M96 and 97 engines in the UK and US. Not a lot, seems more prevalent in cold climates? guessing this has to do with the different coefficient of friction between the pistons and block material. Link to comment Share on other sites More sharing options...
Coastr Posted 15November, 2018 Report Share Posted 15November, 2018 It's definitely true they didn't fix the issue with the the new engines. That much was in the class action stuff in the U.S. I guess they didn't know how to fix them properly so kept rolling the dice. They did make the engine for, what, 11 years? I mean, it took 20 years of production on the original flat six before they sorted the chain tensioners out. Link to comment Share on other sites More sharing options...
3legs Posted 15November, 2018 Report Share Posted 15November, 2018 Ok excuse my ignorance and possibly my naivety but if a Boxster engine has been replaced as recently as 2012 on a unknown year Boxster (at least I don't think the age of the car was mentioned) then does that mean they are still replacing old Boxster engines that haven't been replaced for the first time yet when and if they blow up? Or am I just dreaming as my Boxster is still original at 160k kms. I dare say I'm dreaming.😀 There goes my good nights sleep for a while😀 Link to comment Share on other sites More sharing options...
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