Replacing the engine case


3 replies to this topic
  • BBrown626

Posted April 28, 2008 - 11:31 AM

#1

As a result of my tranny failing I need to replace my engine case. The broken gears knocked the shifting fork guide out of alignment and it is no longer round.

Is there a particular method of removing the bearing retainers that works well? I believe they have hardening lock-tight on the screws.

Any concerns to look for with a new case?

Thank you,

Brent

  • grayracer513

Posted April 28, 2008 - 12:08 PM

#2

Crankcases are replaced as a set.

A little heat will soften red Loc-Tite nicely. Use a propane torch and never heat the aluminum beyond the point where spit bounces off it

Consider having the cases repaired. Two possible approaches are:

> Drill the damaged bore over size, press in a custom made sleeve or plug, or even a bronze bushing, and finish the bore to size as necessary.

> Weld and re-drill the bore.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • BBrown626

Posted April 28, 2008 - 02:45 PM

#3

Thanks Gray. I went ahead and ordered a set. At about $400 it might be more than a repair. I would hate to get the bore fixed, start reassembly and then find another problem. With the sort of catastrophic casualty this thing suffered, who knows. I am learning a lot from this repair, regrettably.

  • todds924

Posted April 28, 2008 - 03:38 PM

#4

Thanks Gray. I went ahead and ordered a set. At about $400 it might be more than a repair. I would hate to get the bore fixed, start reassembly and then find another problem. With the sort of catastrophic casualty this thing suffered, who knows. I am learning a lot from this repair, regrettably.


Bearing retainers are held in with Torx fasteners and i have never had to use heat to remove them...They come out easily.





Related Content

 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.