Quote:
Originally Posted by hurryinhoosier62
ASE certified master engine machinist. I have cut the thrusts on a couple of hundred two stroke Detroit blocks. This isn’t rocket science. Most thrust bearings use interference fit to secure them in the cap and in the block; usually around .001-.0015. Measure the inside of the thrust bearing you are going to use( flange to flange); what is that measurement? You are going to want the finish size of the thrust surface to be .001-.0015 thicker than the inside measurement of the thrust bearing. If you will refer to a bearing catalog of the OE of the thrust bearing you are using the thrust surface specs are listed. Any other questions? Try working on your reading comprehension. WHY would I have technical familiarity with align boring equipment unless I was a machinist?
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Have you ever cut the thrust register for new caps on a Pontiac engine? My machinist does not have a cutter that can be used to cut the thrust register with the caps installed installed using a line hone. He used a fly cutter on a milling machine. Getting the new cap cut to match up with the block is the difficult part. You could have the thickness correct and be way off from the block. Once you have one side cut to match the block then all you need to do is cut the other side to the correct thickness, better to measure the thrust register on the block or the old factory 2 bolt cap than to measure the bearing. The new cap needs to match up the the register on the block.