kick start shaft has 1/8 inch of in/out movement

cbacejr · May 7, 2014

My kick start shaft moves in/out about 1/8 of an inch. Is this normal?

kommando · May 7, 2014

Your layshaft has too much endfloat, this could cause first gear to start jumping out of gear, you need to take the outer and inner cover off and use some iso shims to reduce the endfloat to about 10 thou.

rvich · May 7, 2014

And while you are in there you should check that layshaft bearing to see if the end float is caused by it coming apart.

Hobot · May 7, 2014

After a hand full of long past gear box issues I ran out of gaskets and asked 3 different lists and hand full of vendors if an issue w/o gaskets and was told its was old method many used [back then] to avoid need of shims. W/o gaskets mine gives slight slack below 1/16". Could combine shim and a gasket or two out to fine tune.

concours · May 7, 2014

cbacejr said:
My kick start shaft moves in/out about 1/8 of an inch. Is this normal?

Is the transmission as it came from new? With standard type ball layshaft bearing? Or roller upgrade done to layshaft?

cbacejr · May 7, 2014

the transmission is as it came from the factory. do the sell an upgrade kit?

concours · May 7, 2014

cbacejr said:
the transmission is as it came from the factory. do the sell an upgrade kit?

That much in/out movement is common. No cause for worry. Separate topic, Search "layshaft bearing" and read on.

pete.v · May 7, 2014

concours said:
cbacejr said:

the transmission is as it came from the factory. do the sell an upgrade kit?

Click to expand...

That much in/out movement is common. No cause for worry. Separate topic, Search "layshaft bearing" and read on.

I agree. Not uncommon. The only ill effect may be on the kick shaft pawl where it engages into the 1st gear lay. I also think 1/8" may be a bit an exaggeration, or maybe not.

Also, I think shimming to .010" is way too tight. .030" is more realistic to me. As hobot said, most of this play can be eliminated by thinner gasket at the inner cover or no gasket at all.

Complete rebuild kits are available (Norvil, RGM) with roller or Good ball layshaft bearings.

cbacejr · May 7, 2014

Thanks for the Info!

kick start shaft has 1/8 inch of in/out movement

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