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Woodone337 02-19-2006 04:13 PM

G50 Rattle
I understand that Porsche issued some technical bulletins to cure the vibration or shifter rattle of the early G50 cars. This rattle happens when starting out in first gear with the RPMs rather low. Not to the point where you lug the engine, but at lower RPMs. Does anyone know about these technical bullitins and where to find them?

1987 911 Carrera. 03/87 production date.


KCinBR 02-19-2006 04:17 PM

I have an interest in this too.

88 Carrera w/G50 .....yep it's got a rattle

buttjoint 02-19-2006 05:16 PM

My 89 had a rattle that I was told was just typical. After I replaced the clutch, presure plate,flywheel t/o bearing,Did a g50 update,Guess what! You guessed it , No more rattle.

Woodone337 02-19-2006 06:24 PM

I think this was a series of 4 or 5 technical servive updates that Porsche issued. They consisted of O-rings, wire ties, and rubber sleeves for the shift rods and supports. I just can't find the info on this to see how it actually was applied.


Woodone337 02-20-2006 02:57 AM


imcarthur 02-20-2006 04:35 AM

Above from Excellence. Below from Tech article.


Woodone337 02-20-2006 05:04 AM

Thank You, This is exactly what I was looking for.

chuckr 03-21-2006 07:10 AM

OK guys... This Excellence article is just what I am looking at.
Has anybody done this ??
Where can I get these Porsche parts ?

aknapp 03-21-2006 10:06 AM


Originally posted by buttjoint
My 89 had a rattle that I was told was just typical. After I replaced the clutch, presure plate,flywheel t/o bearing,Did a g50 update,Guess what! You guessed it , No more rattle.
My 89 has rattle at idle. Clutch, pressure plate, flywheel, T/O bearing were all replaced in January. Rattle goes away when clutch pedal is depressed. Rattle is reduced (but does not go away completely) when the shifter is in neutral but moved to either left of right side.

Since mine is an 89, is it likely that the problems are the same as the ones in the article?

I plan to investigate more this weekend, but I'd like a starting point if possible.


Woodone337 03-21-2006 10:25 AM

I got all the parts from the dealer. I can post the part #s later this afternoon if needed. The cost was not high at all.


chuckr 03-21-2006 11:07 AM

did this cure the problem?
How difficult a long did it take ?
Pelican sells the parts, I have the numbers off the Excellence
article. I have an 89, the Porsche tech Bulliten says 87-88
does this matter ?
thanks for your help !

Woodone337 03-21-2006 04:34 PM


Yes, It cured my rattle completely. It was not difficult, even I completed it in about an hour and I am not yet that familiar with a 911. The insulated rod had already been completed by the previous owner so I did not need to complete that task, but that looks like it could be done in 20-30 minutes when you have the rear shift rod apart. It should work if it is an early 89 not the Carrera4 version. It was a very good excellence article.

Hope this helps, Scott

ianc 03-21-2006 07:55 PM

Sounds like a couple of different things being discussed here. The shifter itself rattling at idle can be cured by the above procedure, but if you get the rattle while taking off in first gear, this is a hallmark of the G50 trans, and AFAIK, there isn't much you can do for it. Search on 'G50 rattle' for more info,


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