Removing Crankcase bearings?
Posted September 27, 2008 - 12:55 PM
Thanks in advance,
Posted September 27, 2008 - 01:04 PM
new ones , put them in the freezer . at work we hit them with liquid nitrogen . then tap them in with a socket that is the same size as the bearing . or a bearing installer .
note: never taken bearings out of a wr450 , these are just some ways to get out bearings . some times i just cut them off with a torch , still never cut the base material . just have to know what the metal will do .
Posted September 27, 2008 - 02:24 PM
Reinstall, I put the bearings in a ziplock in the freezer the day before. I heat the case in the over to 250, and the large bearings will fall in. Be sure to orient them right as you get once chance. As soon as the cold bearing touches the hot case, they warm/cool each other in a second. The smaller the bearings, you may need to have a bearing tool or socket and a hammer handy to tap it in. You have to be quick.
Posted September 27, 2008 - 02:42 PM
Posted September 27, 2008 - 08:33 PM
Posted September 27, 2008 - 08:40 PM
Thanks, I just got done reading the article linked below. They heat the whole case and it said the bearings just fall out. Would it work for my bike (99' wr400). http://www.oldbritts.../b_removal.html
you might still have to tap them out with a punch and hammer .
with vehicle and machine axles i hang them from a crane heat the bearing while spinning the shaft and ya they fall off and hit you in the foot if your not carefull
Posted September 28, 2008 - 12:51 PM
Posted September 28, 2008 - 04:39 PM