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Liberty Oil pressure sending unit?

6 messages,  Last post on May 07, 2009 at 9:53 AM

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#4 of 6 Re: Oil pressure sending unit? [rickc38] by caribou1 May 07, 2009 (7:40 am)
Replying to: rickc38 (May 07, 2009 4:53 am) If you put in series: sump * pump * check valve-&-filter * engine   when the check valve cancels the filter you may get: sump * pump * engine   I think the time and pressure needed for the oil to circulate backwards through the filter is long enough to give you a noise free start even after a few hours. Replies to this message: rickc38 (May 07, 2009 8:10 am) caribou1 (May 07, 2009 9:53 am)
#5 of 6 Re: Oil pressure sending unit? [caribou1] by rickc38 May 07, 2009 (8:10 am)
Replying to: caribou1 (May 07, 2009 7:40 am) Ok that is true but if there is oil available in the filter it should start pumping right away. I mean there are no problems with oil pressure as far as I can tell after the oil is changed just that initial start after I have changed the oil and the pump pumps oil back into the system. That's the reason I tried filling the filter so that crucial time when the filter is filling up is eliminated. I don't know if the bypass will allow oil into the main gallery while the filter is filling up I don't think so. Replies to this message: caribou1 (May 07, 2009 9:53 am)
#6 of 6 Re: Oil pressure sending unit? [rickc38] by caribou1 May 07, 2009 (9:53 am)
Replying to: rickc38 (May 07, 2009 8:10 am) You would be surprised to see the time and initial effort it takes for oil to go through a dry membrane. Once the oil made it's way, it's purely friction. Before penetrating the filter it's a surface tension problem, and oil is repelled.

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