Thread: Another timing broke on 701 61x
06-04-2010, 06:31 PM #1
Another timing broke on 701 61x
Before I send my 701 crank to crankworks to be inspected because it keeps breaking timing keys. Could a flywheel also cause of timing key to break? I'm just going through my option before i tear down this motor over such an annoying issue.
06-06-2010, 12:47 AM #2
Take some valve grinding compound and lap the flywheel to the mating surface on the crank.
Once you have a good overall mating surface, try it again with a new key.
If it breaks then, you got a major problem. We use to run micro-stock car engines with no keys, just a lapped flywheel/crank snout and the flywheel never moved. Think taper in a Bridgeport VMC.
If you still need help, let me know and I will look at it in person.
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