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Discussion Forum

Oil Presure gage

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10-01-2002 05:34:58

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I have a question. Before I put a new oil presure gage in my D-17. Will I have to bleed the air out of the line? The gage was taken off while I was restoring the tractor. I also pulled the oil line that goes from the filter housing to the gage off to replace the gasket between the oil filter housing and the engine. Could there be an air lock in the line that would keep the gage from reading its true presure? When I put the new gage on for the first time yesterday, and ran the tractor it read on the "n". Do you have to bleed the line going to the gage?


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10-01-2002 06:30:53

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 Re: Oil Presure gage in reply to John, 10-01-2002 05:34:58  
John, the reason for bleeding an oil pressure line is different than you think. The gauge will work with air in the line but it will not be as responsive since the air will change volume as pressure changes. Once the pressure is constant, it will read the correct pressure. The easiest way to get rid of the air is to hook it up to the engine and crack the fitting on the gauge. When oil starts to come out the fitting, retighten it. It is very difficult to get all of the air out of the line.

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10-01-2002 11:52:27

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 Re: Re: Oil Presure gage in reply to Denny, 10-01-2002 06:30:53  
thanks Denny
I will give it a try.

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