Re: No Oil Pressure on rebuild

Posted by Wardner on June 19, 2007 at 18:19:44 from (4.154.241.52):

In Reply to: Re: No Oil Pressure on rebuild posted by Thomas D Windsor on June 18, 2007 at 22:22:34:

I have never had a H block apart; nor a M. I assume that there are drilled oil galleries in both. I was taking about a Cub.

But it makes no difference. If you have no oil pressure, you need to find out why. Pressurize the oil system. If two gallons of oil wind up in the crankcase in 15 seconds @ 20 lbs pressure, you have woefully bad bearings or a gallery that is missing its terminal plug. The tractor oil pressure gauage will not lift off zero. The gallery plug will probably be a 1/8" pipe plug.

If you want to pinpoint the source, run the test without the oil pan.

There are three external plugs on a H just above the oil pan on the left side. Anyone of those would be a good place to attach an oil filled pressure line.

I don't know if you have ever heard of pre-lubers. Some trucks and equipment are fitted with these so that the motors never have a dry start. This is the same principle. Do you want a dry start on your newly assembled engine?

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