996 eplacement engine question .....
Discussion
HI all ......just been looking at new weekend toys ....and the 996 keeps popping up over and over again.
I have, obviously, read all the stories re IMS RMS yadda yadda yadda ....
I just wanted to ask the Porsche collective ......if I find, say, a 2002, manual with 60k odd miles on the clock, that's had its engine changed under warrantee at an OPC at about 45k miles (and in 2008) ....what is the likelihood of this replacement engine having problems? ....ie are the replacement engines Porsche provided free of said IMS/RMS worries?
cheers in advance
snaz
I have, obviously, read all the stories re IMS RMS yadda yadda yadda ....
I just wanted to ask the Porsche collective ......if I find, say, a 2002, manual with 60k odd miles on the clock, that's had its engine changed under warrantee at an OPC at about 45k miles (and in 2008) ....what is the likelihood of this replacement engine having problems? ....ie are the replacement engines Porsche provided free of said IMS/RMS worries?
cheers in advance
snaz
Last year I bought a 996 which had a replacement engine by Porsche at 60,000 miles. The replacement engine needed to be rebuilt by Hartech at 80,000 miles and included an uprated IMS and low temp thermostat etc.
I bought the car with 96,000 miles for £12,000, so there wasn't much of a premium for the Hartech engined car. I waited for one to become available, as I wouldn't have bought one that hadn't been "improved" by Hartech or Autofarm.
There seems to be a preference in the market for the Hartech cars, maybe not in terms of price but in terms of desirability.
I bought the car with 96,000 miles for £12,000, so there wasn't much of a premium for the Hartech engined car. I waited for one to become available, as I wouldn't have bought one that hadn't been "improved" by Hartech or Autofarm.
There seems to be a preference in the market for the Hartech cars, maybe not in terms of price but in terms of desirability.
I have just recently bought a 2004 996 with 34000 miles and I had budgeted for an IMS bearing change which I duly had done.
The bearing was the original one and was just on the way out! Some play evident and when I opened it up visible marking on the races and balls. No symptoms at all and car was running perfectly.
You should also budget for a new clutch at the same time as well as replacement of the rear brake lines while the gearbox is out. Can all be done for under £2000 incl VAT.
Regards
The bearing was the original one and was just on the way out! Some play evident and when I opened it up visible marking on the races and balls. No symptoms at all and car was running perfectly.
You should also budget for a new clutch at the same time as well as replacement of the rear brake lines while the gearbox is out. Can all be done for under £2000 incl VAT.
Regards
I can only echo what Belfry said (as it was my car he bought!) - mine was rebuilt within a few years of having an OPC dropping a brand new lump in to it. Thankfully was prior to my ownership but I'd have been fuming that the £20k bill resulted in an engine that lasted for just 20000 miles.
Edited by mikeyr on Monday 10th August 14:25
Hi
Ready to be corrected but I thought that the latest engine was fitted when replaced under warranty. We have a 2004 996 car which had a new engine in 2008 from Porsche under warranty.
Understand it was a full engine. All the ancillaries included. Coil packs and alternator were all 997 part numbers. In addition the starter to alternator cable was also a 2008 dated cable. Was told that the car had the latest large IMS bearing. What I am trying to say is that I think it was a 997 3.6 engine since in 2008 the 996 had been out of production for 4 years.
Ultimately can't tell the size of the IMS until the gearbox is separated from the engine.
Ready to be corrected but I thought that the latest engine was fitted when replaced under warranty. We have a 2004 996 car which had a new engine in 2008 from Porsche under warranty.
Understand it was a full engine. All the ancillaries included. Coil packs and alternator were all 997 part numbers. In addition the starter to alternator cable was also a 2008 dated cable. Was told that the car had the latest large IMS bearing. What I am trying to say is that I think it was a 997 3.6 engine since in 2008 the 996 had been out of production for 4 years.
Ultimately can't tell the size of the IMS until the gearbox is separated from the engine.
R129 300SL said:
Hi
Ready to be corrected but I thought that the latest engine was fitted when replaced under warranty. We have a 2004 996 car which had a new engine in 2008 from Porsche under warranty.
Understand it was a full engine. All the ancillaries included. Coil packs and alternator were all 997 part numbers. In addition the starter to alternator cable was also a 2008 dated cable. Was told that the car had the latest large IMS bearing. What I am trying to say is that I think it was a 997 3.6 engine since in 2008 the 996 had been out of production for 4 years.
Ultimately can't tell the size of the IMS until the gearbox is separated from the engine.
I would be surprised if they put a M97 997 engine in a M6 996? This would change the spec of the car and you would need to tell your insurance company!Ready to be corrected but I thought that the latest engine was fitted when replaced under warranty. We have a 2004 996 car which had a new engine in 2008 from Porsche under warranty.
Understand it was a full engine. All the ancillaries included. Coil packs and alternator were all 997 part numbers. In addition the starter to alternator cable was also a 2008 dated cable. Was told that the car had the latest large IMS bearing. What I am trying to say is that I think it was a 997 3.6 engine since in 2008 the 996 had been out of production for 4 years.
Ultimately can't tell the size of the IMS until the gearbox is separated from the engine.
Hi
It would be nice to have an M97 in a 996!
However I think you may be getting a touch confused.. The M97 is the 3.8 engine used in the 997 S model cars.
The M96 continued to be used in the 997 for the base 3.6 models. There are lots of threads on what IMS goes with what engine but there is some consensus that post 2006 M96 engines had the larger IMS.
https://dl.dropbox.com/u/93289189/Porsche_Engine_C...
Have a look at page 9 or 10 for an explanation.
As I said until we have the clutch changed we will not know for sure.
It would be nice to have an M97 in a 996!
However I think you may be getting a touch confused.. The M97 is the 3.8 engine used in the 997 S model cars.
The M96 continued to be used in the 997 for the base 3.6 models. There are lots of threads on what IMS goes with what engine but there is some consensus that post 2006 M96 engines had the larger IMS.
https://dl.dropbox.com/u/93289189/Porsche_Engine_C...
Have a look at page 9 or 10 for an explanation.
As I said until we have the clutch changed we will not know for sure.
Just get an early 996 3.4. These have dual-row IMS bearings which are much better than the later 3.6 single row bearings. Rare to hear of a 3.4 IMS bearing failure.
Early 3.4 996 also had a ferrous piston coating which was banned for H+S reasons, this has so far resisted bore score much better than the later plastic coating they applied to subsequent cars. Very very rare to hear of a 3.4 with bore score.
Early 3.4 996 also had a ferrous piston coating which was banned for H+S reasons, this has so far resisted bore score much better than the later plastic coating they applied to subsequent cars. Very very rare to hear of a 3.4 with bore score.
Hi
According to the Porsche engine code document in the link that I put earlier there is no 3.6 M97 engine for the 997 of any year. The M96 engine appears to run up to 2008 for the 997 base 3.6 model, albeit with a M96.05 code, maybe a revised version.
It looks like the M97 is only a 3.8 for the 997 according to that official document. (Pages 9 and 10).
The replacement engine in our car is an M96 code but with an X in it signifiying a factory exchange unit.
If and when the gearbox is split from the engine I'll let you know what IMS it has. Porsche dealer was of the opinion it had the latest larger IMS.
According to the Porsche engine code document in the link that I put earlier there is no 3.6 M97 engine for the 997 of any year. The M96 engine appears to run up to 2008 for the 997 base 3.6 model, albeit with a M96.05 code, maybe a revised version.
It looks like the M97 is only a 3.8 for the 997 according to that official document. (Pages 9 and 10).
The replacement engine in our car is an M96 code but with an X in it signifiying a factory exchange unit.
If and when the gearbox is split from the engine I'll let you know what IMS it has. Porsche dealer was of the opinion it had the latest larger IMS.
Sir Snaz said:
I just wanted to ask the Porsche collective ......if I find, say, a 2002, manual with 60k odd miles on the clock, that's had its engine changed under warrantee at an OPC at about 45k miles (and in 2008) ....what is the likelihood of this replacement engine having problems? ....ie are the replacement engines Porsche provided free of said IMS/RMS worries?
The new engines are the same as the old ones, so perhaps the real question is : do you believe in conditional probability? If you do and if the (often overstated) scope of the issue equated to something like 10% of all engines then the chance of a car having 2 lemons in the same chassis starts to put the likelihood of issues very much in your favour... If failures were random (which many think they aren't). Conversely, if it was a one owner car and driven exactly the same way on the same usage cycle with both engines, you might conclude that the 2nd one might suffer exactly the same fate as the first.Gassing Station | 911/Carrera GT | Top of Page | What's New | My Stuff