Join Date: Aug 1998
Location: Waldorf Md. USA
Align honing has absolutely nothing to do with the problem you are having. If anything, when a block is align honed, if any of the caps are found to be loose, we usually tighten them up a bit by "peening" the block at the parting surface. If your cap really only has .001" play, it will should not be a problem, but you should have it checked before you go any further. If you have a good dial bore gauge, you can bolt the cap on and measure the bore where the main bearing fits. If it is within specs and round, it "should" be ok. If not, the block should be align honed, at which time your machinist can "tighten" the cap up. The most usual causes of caps becoming loose are probably detonation or a real bad out of balance condition. Either will make the caps try to move and eventually they will a bit.
If you do get the block align bored or honed, make sure to remember what Rascal said ... you have to use a special rear main sel.
If you are rebuilding the engine, your machine shop should be able to check it for you.
Hope this helps.
Advanced Automotive Machine
1971 Chevelle "Heavy Chevy" original owner
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.