bearings on crank

gur · Apr 12, 2010

is there any good ways to get the innerring from the mainbearings of the crank if I dont have the special tool?
or should i spend a few hours making one like this http://www.husaberg.org/modules/gallery ... ullers.jpg

Taffy · Apr 12, 2010

heat it up to nearly orange hot and it will fall off!

regards

Taffy

bushmechanic · Apr 12, 2010

there is a post somewhere I think by Boss?

can also cut almost all the way through it with a thin cutoff disc in a die grinder then hit the groove with a chisel.

I made one of those special tools, used it once. its good for removing the inner without damaging it but it doesn't work very well. if you measured the endfloat before the cases were split and the crank width at the bearing inner lips you shouldn't need to remove a new bearing inner.

some guys remove the shim from the RHS and adjust by shimming the bearing outers in the case.

gur · Apr 12, 2010

heat it up to nearly orange hot and it will fall off!

regards

Taffy

if I heat it up that much isn´t it a chance that something bad happens to the rest oft the crank?

Taffy · Apr 13, 2010

not if you aim the flame right. the crank is a big heat sink and will not go really hot but the inner race struggles to move it's heat to the crank. so the inner ring will get really hot compared to the crank.

a little discolouration won't hurt.

regards

Taffy

gur · Apr 13, 2010

I did the cutting method, worked great.

Thanks.

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