Quote:
Originally Posted by Quadcammer
I seem to recall that the crank carrier and crank are matched to some extent. I'm guessing you would need to measure the bearing clearance and consider an align hone
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Just thinking about it, main bearings are a standard size. They have to fit the crank on the inside, and the carrier on the outside within thousandths of an inch. If there was much wiggle room there the whole system would fail, so my expectation is I’ll be fine.
That being said, My plan is to:
- check the crank for runout with a dial gauge in old carrier
- Measure main bearing clearances in old carrier with plastigauge
- check rod tolerances of old rods with plastigauge
- Check crank endplay in old carrier with dial gauge
- have crank magnafluxed
- check main tolerances with new bearings in new carrier with plastigauge
- check rod tolerances of new rods with plastigauge
- check crank endplay in new carrier with dial gauge
If I pass all those tests I think I will be OK, if any of the tests fail then I will have to figure out why and get back to the drawing board.
Does anyone happen to know the main bearing and rod bearing tolerances offhand?
EDIT: apparently rod and main measurements on these engines is a big secret, added steps to measure what I have first. My crank carrier damage is out by the cylinder, and relatively minor, so the measurements at the journals should still be good.
Silber