Quote:
Originally Posted by Terry, NJ
I forgot to mention I had heated the cylinder walls to expand them. However, I was afraid of too much heat cracking the cast iron so perhaps they weren't heated enough to be effective.
I believe it (the bind) is at the rings. Why? Because of the short time it took to bind up. I started the engine and it took about fifteen seconds (Maybe only 10) to lock up completely. I don't see any scoring in the cylinders from a broken ring. The crankcase was full of fresh oil. I can't explain it and I'm not sure I can cure it.
Terry
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Was this the first start after rebuild or first start after sitting for a long time? If so , you should have pulled the distributor and poured a quart or so of oil in the opening to lube the main bearings. If not, the mains will run dry until the oil pump primes itself, starts pumping oil and fills the tappet chamber enough for that thick, cold oil to start running (by gravity only) down the tubes that feed the mains. It's possible that the mains ran dry long enough to seize.
Or, maybe the dipper tray had a pinhole or two in it and a rod or two ran dry and seized before any oil got there.