Transmission detent spring bolt (locking device) tightening torque spec?

[bavmotorwerkz]

Good evening,

Having a hard time finding the official torque spec of the Getrag 420g transmission detent spring locking device.. would anyone perhaps have this on-hand?

Part number should be 23317530787



In fact, if you have both the OE tightening torque specs for both 23317530787 and 23317545769, it would be greatly appreciated for anyone going about replacing the detent springs in these areas. Thank you, much appreciated!

[J. Beez]

FYI - before you take PN 23317545769 out and replace the insides, make sure the trans is in first gear or you will lock it up completely.... ask me how I know.

[heinzboehmer]

FYI - before you take PN 23317545769 out and replace the insides, make sure the trans is in first gear or you will lock it up completely.... ask me how I know.

Well I guess I was lucky when I replaced mine. No clue what gear the trans was in but I didn't have an issue. Any idea why having it out of first would cause it to lock up?

And to the OP, I couldn't find torque specs for these either. The two 23317545769 bolts are grade 8.8, so I think I torqued them to what pretty much all other 8.8 bolts are torqued to on this car, 89 in-lb. For 23317530787, I just matched the torque that it was at before removal, unfortunately can't remember the value.

[Will]

FYI - before you take PN 23317545769 out and replace the insides, make sure the trans is in first gear or you will lock it up completely.... ask me how I know.

How'd you fix it?

[sapote]

FYI - before you take PN 23317545769 out and replace the insides, make sure the trans is in first gear or you will lock it up completely.... ask me how I know.

With the cover removed, there are 5 round holes now exposed: 3 holes for detent sleeves/spring pressing against the 3 shift rods at the gear engaged and neutral positions, and 2 holes for the interlock 2 fat pins and 2 balls below the pins.

There are three small 4mm pins -- 2 shorts inside the R and 1st/2nd rod (3rd/4th rod has no pin), and a long one between R and 5th/6th rods, working together with the said 2 fat pins and 2 balls for interlocking function (prevent more than one gear engaged). You can remove the cover and 2 bolts to change 3 springs and 3 detent balls. No require to shift into 1st gear for the operation.

Btw, the reason people wanted to remove the 2 bolts PN 23317545769 and remove the cover is for replacing the old design detent balls with the new design detent sleeves for a smoother shift, and so no reason to remove the locking fat pins and 2 balls below. As long as the fat pins and balls below are not removed, the 4mm pins inside the shift rods cannot slide out and causing the lock up issue.

For any reason if you want to remove the fat pins and balls below, the best way is to have the tranny in such a position that the said 5 round holes are pointing straight up/down (not tilting as when tranny installed in car) then the 4mm pins in the rod won't slide out to cause lock up.