View Full Version : Main bearing stuck on crank :s

11-09-2010, 01:30 PM
hi all,

I split my B1 rep crankcase and instead of the main bearing staying in the casing it stayed on the crank. I have tried to pull it of but it is well and truly stuck on there and i don't want to damage the crank. Any help would be appreciated.



11-09-2010, 01:41 PM
why dont you try and heat up the berring with a blow lamp the berring will expand and try tapping in off use plenty of lub behind the berring try not to play to much heat on to the crank this will expand also ...just a thought..

11-09-2010, 01:57 PM
you can try sticking the lot in the freezer for a while and then trying to heat the bearing only, failing that you could do it properly and get a puller.

11-09-2010, 02:19 PM
Tryed a heat gun...wont budge and is there such thing as a bearing puller jase?

11-09-2010, 02:48 PM
type bearing puller into an ebay search and all will be revealed

11-09-2010, 02:49 PM
Dremel thru the bearing's outer then inner race... carefully. When doing the inner, don't go all the way thru... get 50% thru then insert in groove screwdriver n' twist to prise it open.

11-09-2010, 06:48 PM
Thanks for the help everyone got it sorted...my neighbour had a bearing puller