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replacing oil case on 'old blu'

J

jgmo

Silver Medal Contributor
Hi all,

Hoping for some "bright ideas" for getting the oil case and power head separated on an old 80's 10 hp bf100. I accidentally knocked over a customer's motor and cracked his oil case. No problem, I have a couple of old motors that I was going to restore so I'll just swap one of mine for his.

WRONG!

The case on the first "replacement" motor is stuck so bad to the engine that I cracked that one trying to get it off. I was being extra careful too!
I made double sure that the bolts were all out and, when I saw that it was going to be stubborn, I tried soaking it in PB Blaster before attempting to pry or tap it off. I was using a dead blow to tap on the case to try and break the bond at the gasket when it cracked. Now I'm scared! I only have one more motor to rob from and I can't afford the $700 for a new one. The motor isn't even worth that even though it is like new.

Any ideas for getting it off in one piece? Any sources for a good used one for a reasonable price? This guy is not happy I broke his motor and I don't blame him. The irony is that I was working on his "new" replacement for this one when I tripped over this one that he wants to sell. Ouch, Ouch, Ouch!

Any and all suggestions appreciated.
jimmyd
 
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Have you gone ahead and pulled the broken replacement apart? What was holding it so strong?

Never had this problem...although I have broken items on customer's motors. They were a lot easier to replace.

If it is just a stuck gasket, how about heat?

You can practice on the one you have already broke.

Wish I could be more help.

Mike
 
Thanks for the reply Mike. This primarily falls under the catagory of dumb, clumsy me. But, it is also an example of a phrase that the best mechanic I ever knew was fond of. When I'd ask him why in the world some of the stuff we worked on was so jacked up, he'd say "because Jim, somebody's a been here before ya"

That was the case here. I finally got it separated and there is some sort of nuclear glue and a homemade looking gasket. That stuff was as hard as glass and finally shattered before the rest of the case did. I hope that same guy didn't get to the other one. We'll see.
 
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