Re: Should I Line Bore?

Posted by Shovelman on January 09, 2003 at 05:59:53 from (24.151.89.245):

In Reply to: Should I Line Bore? posted by Jeff_MI on January 08, 2003 at 19:08:55:

Jeff,
I agree with Randy. Chances are, the new caps will not match the block. You will most likely have to line-bore. The machinist will cut some material from each leg of the bearing caps, making the diameter of the bores smaller. Then the bores will be re-cut to the original (factory) I.D., and everything will be back in line and back to original specification.

A bit of advice: Carefully inspect every part for damage before you commit to any large expense - line boring, etc. If the main bearing caps were broken, there had to be tremendous stresses put on the block, crank, rods and other components from the ice. There may be other damage that you cannot detect by eye.

I would have your jobber check the crank for damage and straightness. Also, check the rods for alignment and twist before you reuse them. Carefully check the block and head for damage. Replace the main bearing cap bolts and maybe the rod bolts as well, if you suspect they were stretched or stressed. Good luck! Scott

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