Obtaining historical records

[itsnotanova]

Originally Posted by piper6909

Forgive me for digressing for a moment. So, 2000-2002 engines are designated M96.22 and 2003-2004 engines are M96.23. If both versions have single-row IMS bearings, what's the difference?

Number of chains?

Can an M96.23 engine replace an M96.22?

Basically the 03+ is a three chain and 97-02 is a 5 chain. Heads are different but I believe the short block is the same

[piper6909]

Originally Posted by itsnotanova

Basically the 03+ is a three chain and 97-02 is a 5 chain. Heads are different but I believe the short block is the same

Thanks. So they're not a direct swap?

[itsnotanova]

Originally Posted by piper6909

Thanks. So they're not a direct swap?

Not easily

[piper6909]

Originally Posted by itsnotanova

Not easily

OK Thank you.

[ty_wheels]

TO - are saying that although Porsche never admitted officially to this IMSB defect,
it replaced engines that were destroyed by it with same engines with same defect and did not try to fix this ?

was the LN Engineering fix already available in 2008 ?

[JFP in PA]

Originally Posted by ty_wheels

TO - are saying that although Porsche never admitted officially to this IMSB defect,
it replaced engines that were destroyed by it with same engines with same defect and did not try to fix this ?

was the LN Engineering fix already available in 2008 ?

Yes to both..........

[TeamOxford]

Originally Posted by ty_wheels

TO - are saying that although Porsche never admitted officially to this IMSB defect, it replaced engines that were destroyed by it with same engines with same defect and did not try to fix this ?

Cynically speaking, yes.

Originally Posted by ty_wheels

was the LN Engineering fix already available in 2008 ?

It didn't matter to Porsche if it was available in 2008. (I'm assuming that this was the year the engine was replaced.) Porsche wouldn't use an aftermarket product on their engines anyhow. Even if you brought your Boxster into the dealership today for an IMS bearing replacement, they would use the same spec bearing from 2004.

I think it's pretty obvious that you are concerned about the IMSB issue. Take heart in knowing that you do not have the engine that originally failed. And you do not know why it failed. For the first four years of its life, it could have been mistreated or not serviced at all.

The replacement engine, so far, has lasted twice as long, timewise, as the original engine. The replacement engine is newer than the original, and may have a better Porsche spec bearing from a different supplier.

If you maintain it properly, it could last a VERY long time. Check this forum for proven, proper maintenance. Basically change the oil every 5K miles with a high quality oil. Drive it every day; make sure it gets up to temp. Wind it up, shift at 4K or better. Never let it go under 2K on the tach. You don't necessarily have to "drive it like you stole it", just drive it like you know you're going to get the ticket, but you want to make the cop work for it.

Just sayin'...........

TO

p.s. I was kidding about the "make the cop work for it" bit.

[ty_wheels]

Thanks TO, appreciate the information and the tips.

You are correct in my concern of the IMSB as this car has done ~56k miles now,
If I assume a new engine was put in it when car had ~22k miles, now it has done ~34k miles.

I intend to maintain it well,
regarding when to shift, haven't thought about that,
I definitely don't shift at very high RPM, probably around 3-4k
and I drive it gently (did not have the time yet to really see what this beast does).