King James

Had a potential buyer take my 82 Weissach out for a test drive and he came back indicating that after 'missing a shift into 3rd' the car wouldn't shift into any of the lower/back gears (1st, 3rd, 5th) - I got into the car and sure enough - seems to hit a wall pulling back on the stick, but doesn't find any actual gear. R, 2nd, 4th work as they should.
Talked to Roger and ordered delrin rear coupling bushings and a front ball cup, figuring to start there. Pulled the rear coupling (4mm allen cone screw came out with little trouble!) and bushings looked ok, replaced with new and re-installed rear coupling...when I rotate the front linkage on the ball, 1. it is still firmly attached, has not popped off the ball, and 2. I can see the cup, it looks like it is in great shape. I haven't tried any further to pop the ball off the cup as that appears to not be the issue. HELP?!? trying to avoid pulling/dropping the tranny - has anyone had this happen to them and/or have an idea of what is going on?

KJ

1982 928 5spd Weissach

medipedicman

Are you able to engage the gears at a stand still? Can you "find" 3rd?

medipedicman

https://rennlist.com/forums/928-foru...ear-79-ob.html

This is the trouble shooting process and feedback that I received for a "similar" issue.

James Bailey

Sounds like the rear coupler slid on the shaft...have you tried adjusting it forward and back at the pinch bolt ?? And next time NEVER EVER let anyone test drive your car without you in the car......My guess is he tried a real hard speed shift probably into 2nd like it was a USA 4 speed muscle car.

King James

Agreed on the test drive procedure going forward...I'm thinking you are probably correct about some ham fisted power shifting being the culprit here...When i took off the rear coupling initially in trying to diagnose this problem, there was 1/2 inch or so of splines exposed on the shaft - I thought that was the problem as the WSM shows the coupler snug against the shaft with no splines showing. I re-installed the rear coupler flush to the shaft as depicted in the WSM, but the shifter was WAY forward as a result...to get the shifter to be more or less straight up and down i had to back the coupler off the shaft, leaving me with what I initially discovered when I crawled under the car, about 1/2 inch of exposed splines on the shaft...I figured this was the way it has always been? (maybe the PO had mis-adjusted the front ball cup?)
I'd love it to still be a linkage issue as pulling the tranny would be a pretty dark cloud over my head!

any idea why rear coupler pushed all the way in flush w/shaft would move the shifter so far up? could it still be a coupler sliding on the shaft issue?

KJ

1982 5sp 928 Weissach

medipedicman

As a way of testing mine I put it 4th while in drive way on jack stands. Then went under car and loosened the forward bolt to allow play on the shaft. Then went back to cabin and moved the stick to the most forward and right orientation practical. Then went under and tightened everything back up. Then back up top and with engine running engaged each gear while still on stands .

depami

https://rennlist.com/forums/9955222-post58.html

mark kibort

he probably just pushed too hard on the shifter. now, you are at a max limit and he cant get into the "pull" gears. (i.e. 1st , 3rd, and 5th).

at the rear couplter, get the adjsuter loose and move the shifter rearward and center the throw.

sounds like thats it.

mk

Speedtoys

That...entirely sucks.



Jim is right..id never let someone dissapear with my for-sale car that I didnt know a WHOLE LOT.

medipedicman

KJ....any updates?

King James

Yes - sorry for the delay in response...I basically followed your instructions Medi - up on 4 jackstands, put gear into 4th (up and to the rightmost), went back under and loosened rear coupler and re-tightened. Didn't outwardly appear to be further on the splines or changed in any way I could notice. Went back up top and had my 'pull' gears back (1,3,5).
Fired it up and worked through gears 1-5 while up on stands - all good.

Only problem now when stick is in neutral, the orientation is not straight up and down, but forward and to the left. I am able to shift and get into all gears, but stick isn't straight up. any ideas on that?

thanks for all of the help/advice everyone - was awfully worried there for awhile!

depami

You can adjust that slightly by loosening the clamp and moving the stick but if you go too far you will end up with gear selection problems again. It takes some trial and error to find a good compromise.

James Bailey

Although the shaft where the coupler clamps appears to have splines there are none and you can loosen and rotate the coupler slightly.