Which way around transmission mount cup washers

[pete917]

I have the pressed steel type transmission cross mount (not the alloy G50 type).

Which is the correct configuration of the cup washes. One underneath and the other on top. I cant remember if they cup inwards or outwards.

Many thanks.

[Caledonian]

This way is standard )-( this way apparently stiffens the mounts a bit more (-)

How do I know? I read about it on here of course... I even recall some Porsche tech bulitin about the washer orientation as part of a cure for a gear shifting issue, but I can't remember for what models.

[pete917]

Originally Posted by Caledonian

This way is standard )-( this way apparently stiffens the mounts a bit more (-)

How do I know? I read about it on here of course... I even recall some Porsche tech bulitin about the washer orientation as part of a cure for a gear shifting issue, but I can't remember for what models.

That's interesting. I have put them on that way i.e., bottom one cup facing down, top one cup facing up. But I have also been told it should be the opposite and the cups inwards pacing over the rubber.

I dont speak German, but I found this and pic shows the cups facing inwards.....

It would be great to know for sure

Motorlager / Getriebelager - Porsche 911 G-Modell Forum / Kaufberatung von PFF.de

[pete917]

Does anyone have a link to the tech bulletin? I have searched but can't find it.

[kodioneill]

Pelican Parts Technical BBS - Powered by vBulletin

Some discussion on the subject.

[Algernon]

Can I just undo and reverse the cup washers without upsetting anything? If so, I would like to try, and see if I notice any difference!

[JJ 911SC]

Originally Posted by Caledonian

This way is standard )-( this way apparently stiffens the mounts a bit more (-)

How do I know? I read about it on here of course... I even recall some Porsche tech bulitin about the washer orientation as part of a cure for a gear shifting issue, but I can't remember for what models.

I read it too but if they are mounted "backward" might as well use a normal washer as 90% of the convex/concave washer is in airspace.

[kshafer1]

[JJ 911SC]

Got to love the CYA note...

[kshafer1]

Thus the reason for so much confusion!

[JJ 911SC]

The drawing is not a true representation of the washer.

In the "new" configuration only the outer edge of the washer of the would touch the rubber.

Oppositely in the "old" configuration only a few mm of the inner hole would touch the rubber.

When you look at the CAT its even worse, good luck figuring which way its going...

But at the end of the day, these washer are like our Little League Baseball Political Correctness, it does not matter if you win or loose (convex or concave) everybody wins and get a gold medal