Help Please!!!!

[RobPaynter]

Hi, Ran the X11 for the first time today at Taplow in doors on carpet. Car handled really well really pleased with that.

BUT had some issues can anyone tell me why the rear diff screws snap had 2 snap today. How tight should the diffs be run at. And how are people shiming the diffs in the housings.

[Itsik]

You tighten the diff so that you can barely turn the diff gear by hand with the two diff halves held by wrenches or something. Then just put a drop of CA glue on the hole which the diff screw is inserted into. That should give you a vary smooth and long lasting diff.
Re. Shimming, you should shim it so that there's no play betwin the crown gear and pinion, but there's no binding either.
Hope this helps

Itsik

[neil_p]

Hi Rob, I have also sheared the kit diff screws. I asked Kev at inside line racing about the quality of the screws used and his reply was that TE wasn't sure, and he had snapped some kit ones also. He told me that he was using a shanked screw, but I couldn't find the dimensions of the shank part.
I sourced 10 from a high quality fastener supplier, 12.9 DIN is what to look for. Just do a search for M2x12 cap head screw/ bolt and you will find what you need.

Shim as you would a spur/pinion, with some backlash. I however don't have it fixed in position, I have it so it has some side movement. Has done no harm at all.