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Ok, so I have been working on my 69 cb350

I am pulling the motor again because my compression wasn't optimal. I plan on having a mechanic rebuild it for me. I was wondering how many ballpark hours would a job like that be? I guess I would be looking for re-ringing, honing, valves, maybe springs and seals. I am probably missing a few things, but I am not sure what needs to be done right now exactly.

Thanks
 

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bk69cb350 said:
Ok, so I have been working on my 69 cb350

I am pulling the motor again because my compression wasn't optimal. I plan on having a mechanic rebuild it for me. I was wondering how many ballpark hours would a job like that be? I guess I would be looking for re-ringing, honing, valves, maybe springs and seals. I am probably missing a few things, but I am not sure what needs to be done right now exactly.

Thanks
Assuming you just hand him the engine.....
Tear down and reassemble top end - 4 hours actual work-on-the-engine labor, nominally. That excludes any horrible gaskets that take all day to remove, busted screws, etc.
Valve work is unknown - maybe just lapping at ~$15 per valve at a machine shop.
Cut new valve seats and lap in, ~$35 per valve at a machine shop.
Honing - cheap, if that's all you need.
Boring to new piston size, ~$40 per hole at a machine shop.
 
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