Procedure for adjusting shifter coupling on 930?

[briankeithsmith]

A few weeks ago I had to remove my shift coupler that is at the end of the shift rod that mates with the tranny shift linkage. Before removing it I marked it appropriately, so that when I reinstalled it I could put it back the way it was. But evidently I can't get it adjusted right. I can go into all of the gears except for Reverse, and when I'm in 1st, it looks like the shifter is in the reverse position.


Does anyone know the procedure that is normally used when replacing the coupling. It would seem to me that I would want to turn the tranny shift linkage and place the tranny in 4th gear. Then line my shifter up in 4th gear, and make any adjustments as necessary to the coupling itselft to make it line up properly in that position.

Any other procedures I can try?

Brian

[Formerly Steve Wilkinson]

I don't know if it's the same for a four-speed box as it is for a five-speed 915, but with the latter, the basic procedure is that you turn the selector shaft (the shaft that comes out of the transmission) as far to the passenger side of the car as possible--i.e. counterclockwise when facing the rear of the car. Then, with the shifter in neutral, pull it as far as possible in the opposite direction--i.e. toward the driver's seat. Then tighten the coupling. You need to be firm, not approximate, in both cases. I put a pair of rubber-padded Vice-Grips on the selector shaft when doing this, and gently push the vice-Grips with one knee while I push the shifter with one hand, and tighten with the other hand.

Marking the shaft and coupler won't do you much good. It's amazing how much difference even the most minuscule misadjustment can make.

Stephan

[briankeithsmith]

Thanks Stephan. It seems like the procedure is a little different for a 930 tranny, but I'm willing to try it the way you mentioned.

Brian

[mike f]

Brian, I replied to your thread over at rennlist, but for those interested on this board.... here are the instructions from the factory workshop manual.

1. Loosen selector rod clamp. Turn selector rod for transmission's inner selector lever left in idle to stop(as seen in driving direction). Note: pic shows this to mean clockwise as looking towards the rear of the car.

2.Move selector lever in idle position so that the lower part of the selector lever is vertical and on the right stop (3rd and 4th gear).

3. Tighten selector rod clamp slightly.

4. Check if shift travel is just as large in 1st through 4th gears and if reverse is easy to engage. Correct adjustments if necessary.

5. Tighten hex nut on clamp to speccifications. (As best as I can tell this is 25NM)

[Formerly Steve Wilkinson]

An interesting lesson in English as a second language...

Stephan

[mike f]

It sure is. And there's only that one picture, which doesn't help much. It seems that Stephan's method and the factory manual method are essentially the same, just done in the opposite direction.