Quote:
Originally Posted by 3739ford
Without removing the crank and taking back to the machine shop is there a way to remedy two rod bearings when tightened down you cannot turn it over. The motor does not have the heads on it yet just slowly rebuilding the motor.
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The problem may be the rods rather than the crank. Make sure the caps are on the matching rods and that they are on the correct way 'round. Then install one at a time to see which is the problem. Finally, you may have to remove the rods and measure them for out-of-round and size. Also the crank throw can be measured in-place with a 2-3" micrometer to make sure the size is correct. Bearing thickness can be measured with a dial caliper or ball-end mic to make sure you don't have an incorrectly marked/packaged bearing.
Terry