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So the spending starts.....

Define later bearing? The 996.2 has a single row bearing. These were most likely used as the dual row is now obsolete. The latter 997 was much larger and not compatible with a 996 ims without redesign and modification of the chain sprocket, shaft and centre spigot.

I can't Porsche did this.
 
I also read about this on rennlist I'm sure.

You can walk into an OPC and order a new engine for a 3.4 and it will come with this late IMS bearing.

OP you need a pic of your IMS bearing or engine number to know for sure.

Your mechanic is either:

a) Correct and your car has had a replacement engine after 2005
b) Incorrect, but he may be more used to working on later cars so not know the early 3.4 is different, in which case he need enlightening.
c) trying it on

I'm inclined to belive a or b is true, but the glass is also half full.
 
I don't think the chap that's doing my gearbox knows a great deal about the engines.
He seemed to think the only way to change the ims was to split the engine.
He said this on the phone to me even before he seen the car.
That's why il be taking it else where to have it changed.
He did say it's a duel row bearing, but can you tell this without removing it?
 
Isn't splitting the engine the approved way to change the IMS bearing?? :dont know:

There is information / discussion / videos on this site about the potential problems of in situ bearing replacement.
 
Sorry for late reply - I've been working in Germany.

Alex - there are lots of examples on the net of early cars receiving genuine replacement engines with later level parts. Look up AT replacement engines on 3.4s and you will find lots of examples in Europe and the US of people opening up to replace the ims bearing only to find it already has the last revision larger 22mm nut non servicable (without splitting) ims bearing. I can confirm that mine has this on a 3 chain engine. Mine was replaced with a factory AT engine in 2008 long after porsche released its final revision.

I have discussed this with dave77 who has the same level of engine built in 2010 as replaced by the original owner (his colleague) who paid £14k for the privilege. Have a look online and there are lots of examples of this. Between mine and dave77s engines there were about 1400 built ( by serial number) all of which would likely be built to the same spec.

Just look into porsche AT engines and you will see this is not uncommon. To me this makes for a great engine as it is fairly young (in relation to the car) and has updates that porsche determined worthy of later engines (in reality much of the variation is probably due to supply of parts).

Speaking to dave77 we may start a separate thread to provide info on these engines and collect data on anyone who has one (just check your engine number for AT, it can be seen easily under the car).
 
Well this has to be the worst company i have ever had to deal with.

https://www.ecu-solutions.net/

I was told a weeks turn around and told my recon gearbox would come with a 2 year/24k guarantee and for a good price, To good to be true?
In short yes.

After waiting 5 weeks of ***** excuses i collected my car today had enough of waiting.
While the box was off i asked if they could check the ims bearing witch they did only to tell me it was shot one of the worst they had seen.
£2500 to replace so i said forget it i,l trailer it home and get it done locally.

Got the car up in the air when i got it home just to have a look underneath to see how it had been put back together after our heated phone call.

Well its plain to see the box has not been taken off not in resent times anyway.
Not only were they just lying through there teeth about it being stripped down they also tried to sting me an extra £2500 for the ims witch obviously they cant have checked.

So if anyone is thinking of using this company think again, The reviews are great on the website but there's no reviews been added to it in the past 6 weeks so i expect there all made up because you cant leave a review anyway.

So back to the drawing board.
 
That's terrible, really sorry to hear that - I can't believe that someone would try it on so much! Have you paid any money yet? On the upside hopefully your ims is ok and you still only need the box rebuilt.
 
I hope you haven't paid them anything for the privilege??

Please take the advice of those on here and use the specialists that are recommended, ie Mike at sports and classic for gearbox rebuild.

You could also try Autofarm or Parr, but I suspect the box may end up at the same place.
 
As Harv says Mike at S&C is the go to place in the UK. Very few others have the gear or knowhow with the getrag 6 speed.
Also the bearing is a Porsche only part. Around €400 today. It is an expensive repair. Gear sets are also very tricky to get hold of and very expensive (2nd is the most common problem one).
Mike has around a 2month waiting list.
Best of luck OP :thumb:
 
Gixxer996 said:
Sorry for late reply - I've been working in Germany.

Alex - there are lots of examples on the net of early cars receiving genuine replacement engines with later level parts. Look up AT replacement engines on 3.4s and you will find lots of examples in Europe and the US of people opening up to replace the ims bearing only to find it already has the last revision larger 22mm nut non servicable (without splitting) ims bearing. I can confirm that mine has this on a 3 chain engine. Mine was replaced with a factory AT engine in 2008 long after porsche released its final revision.

I have discussed this with dave77 who has the same level of engine built in 2010 as replaced by the original owner (his colleague) who paid £14k for the privilege. Have a look online and there are lots of examples of this. Between mine and dave77s engines there were about 1400 built ( by serial number) all of which would likely be built to the same spec.

Just look into porsche AT engines and you will see this is not uncommon. To me this makes for a great engine as it is fairly young (in relation to the car) and has updates that porsche determined worthy of later engines (in reality much of the variation is probably due to supply of parts).

Speaking to dave77 we may start a separate thread to provide info on these engines and collect data on anyone who has one (just check your engine number for AT, it can be seen easily under the car).
Click to expand...

Sorry to hear that, its a nice car so worth saving.

Dave77's car is now mine and I can confirm all of the above as I have the full replacement engine sheet from Porsche. It cost £10k for the new engine.
Interestingly it also had a whining gearbox and was replaced with a 3.6 box.
 
What an interesting thread. Thanks to all contributed, particularly Gixxer.

OP hope you get the car sorted soon.
 
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