Need opinions (mixing case halves)

[NelsonLt1]

I have a 61x motor that is good running condition, except that the starter bolt mount on the bottom case half is broken. I have another set of cases, and was contemplating just taking off the bottom case and putting the good one on. What are the opinions on this?

 

[Idok]

go for it

 

[Matt_E]

Go for it.

 

[keefer]

Just have it welded for $20 or so and you won't have to worry about mixing & matching cases. They are ground from the factory to be a matching set and are marked as such. If the alternate half is too much different you could have a leak potential. Use plenty of gasket sealer and watch for obvious mating differences. I personally would avoid doing it if possible, but it has been done..

 

[Watty]

I've matched case halves plenty of times, and NEVER had a leak. I'm told that they are matched from the factory as well, but never have I had an issue.

 

[NelsonLt1]

Cool, thanks for the input. I have a few sets of cases, so I'll find the best match and use some permatex/yamabond.

 

[#ZERO]

Those case sets are line bored at the factory mated together and use a bearing crush clearance. The locating pins won't keep the bearings from turning if the clearance is wrong.

 

[FL-cracker]

Not something I would want to risk...

 

[Matt_E]

Not something I would want to risk...

On a high dollar motor.

See first post as what motor this is for.