> -----Original Message-----
> From: Gary [mailto:faast@iinet.net.au]
> Sent: Monday, July 24, 2000 11:24 PM
> To: 928
> Subject: [928] Clunk when changing Park-Rev-Drive
>
>
> Any ideas or common problems?
> My car (an '87 S4) has always had a clunk sound when changing from park to
> rev, and rev to neut, and neutral to Drive.
> Seems worse Park to Rev if I have been going forward previously ,
> and rev to
> drive if I have been going backwards.
> If going forward, stopping, & going Park to drive quickly doesn't seem too
> bad.
> I have just had a transmission pipe (near the top of the radiator) changed
> because of a small drip after fixing the cooling fan (I think the movement
> of the old hose made the small hole near the join).  This has
> been my first
> leak (apart from power steering a little while back).
> I showed my mechanic the clunk (I don't think it was as quite bad before I
> took it to him, but it was still noticable & I could be mistaken) - he
> checked the transmission fluid & topped it up a little.  He said with age
> they all make a clunk, but he was also worried about the 3 or so
> very small
> clunks after the big one.
> The car still drives really well, and changing gears automatically whilst
> dribving is still very smooth.
> He thinks it could be friction plates or pinnion slackness (as it is much
> worse when changin direction.
> Any common faults I could tell him when I take it back?
>
> We have a German Car day this Sunday.  He said he should ovehaul the
> transmission  - do you think it will be OK to leave this until next week?
> The drive on Sunday is about 3 hours (and 3 hours return on Monday), but
> mostly straight driving & I should be changin Park - Rev - Drive
> very much.
>
> Any help greatly appreciated.
>
> Thanks,
>
> Gary.
>
>
>
>
From: Jim [jim@928intl.com]
Sent: Thursday, July 27, 2000 12:44 PM
To: 928
Subject: [928] RE: Clunk when changing Park-Rev-Drive

The 86 model and some 87 automatics used rivets to secure the torque
converter drive plate to the hub/input shaft inside the front of the
transmission it is a triangular flat  -- these rivets can become worn and
allow some movement -The Porsche approved fix is to replace the rivets with
bolts which is how all the other transmissions are made .

Jim Bailey
928 International
jim@928intl.com
79 928 5spd
80 928 5spd
68 911 5spd