Posts
108
Joined
7/21/2013
Location
Hamilton, OH
US
Edited Date/Time
12/11/2014 9:17pm
Hey all, got around to soda blasting my cases today and notice a small crack by the bearing opening in my right crankcase half. I am curious as to what your opinions are on what i should do. I had someone tell me that when i install new bearings in the cases to use the loctite for bearings and that it would be fine but i am curious if anyone has went that route or any other route for a crack like this or did you buy a new case half?
I am hoping i dont need to buy a right case because i already had bought a complete engine bearing kit and it will be a waste if i have to buy a new case half since they come installed. I have found the new half for $260 shipped from partzilla and i did see a used one on ebay but he wanted $200 for it and there is no way i would spend that much for a used one. Any help appreciated!
I am hoping i dont need to buy a right case because i already had bought a complete engine bearing kit and it will be a waste if i have to buy a new case half since they come installed. I have found the new half for $260 shipped from partzilla and i did see a used one on ebay but he wanted $200 for it and there is no way i would spend that much for a used one. Any help appreciated!
Loctite 641 or even 640 will probably not be enough to compensate for the loose fit, especially with a crack
still present. Loctite bearing retainer is designed more to keep a snug fitting bearing from spinning, not to
retain a bearing in a hogged out mount.
If you feel like putting the time and effort into it, you could weld the crack and then weld a bead around the bearing
mount, then machine the bearing mount back to OE spec. That's the only way I know to repair it correctly. If it was
mine, I would chunk it and buy a new one.
The new bearings you just bought will make good replacements when rebuild time comes.
dogger
I was all ready to give in and buy a case but I decicded to take it to a machine shop today first. They can weld up the crack and after checking the clearance they thought a new bearing would be fine along with the use of loctite 680(whatever that is). He guaranteed the bearing would never spin in housing again but he also said that when it came time to replace bearings the next go around that I might would have have to buy a right case then because it would be near impossible to get that bearing back out without destroying the case. That 680 must be some serious stuff...
The Shop
I agree with the previous poster though, about using a medium strength bearing retainer if possible. That 680 is the equivalent
of a liquid weld, It's quite permanent.
dogger
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