Re: low compression, no oil pressure
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Home away from home
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It's very unlikely that reassembling used pistons and rings in an old engine will give satisfactory results.Re-assembling used inserts usually doesn't pan out either. Mixing old lifters on an old cam may give trouble. (Or not) If you can get oil some oil pressure, running the engine may get better ring action after some run time. If you have to adjust the lifters cold, adding two to three thousandths clearance to the spec should assure that the valves can seat with the engine warm.
Posted on: 10/13 19:47
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Re: low compression, no oil pressure
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Home away from home
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On your oil issue - you could pull one of the galley plugs, or just use where your oil pressure gauge taps off, and force feed oil using a pressure pot. You could even do this on the stand, with the oil pan and valve covers off, to inspect the oil flow at each critical point.
Summit Racing and Jegs both sell pressure pots; I'm sure others do as well. You essentially just pressurize a can of oil with shop air and use that to force feed the engine, bypassing the oil pump entirely.
Posted on: Today 8:23
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1937 120 1092 - Original survivor for driving and continued preservation. Project blog / Registry
1937 115 1082 - Total basket case, partial restoration, sold Hershey 2015 Project blog / Registry |
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Re: low compression, no oil pressure
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Home away from home
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Thanks--with the compression issue plus the oil pressure concern, that engine has been buttoned up for the winter in the car, and the engine that I pulled out of it in the first place is now on the engine stand.
Steam cleaning it today, and I'll tear into that one starting tomorrow. I know that it has (at least!) several stuck valves among other offenses. The car is now outside and under a car cover perhaps for a few weeks. A few other projects need to be done as long as the '40's outside the shop.
Posted on: Today 17:04
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