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AC-C no oil pressure

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Butch P

03-24-2008 08:05:30




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Lost oil pressure all of a sudden. Pump looks good,put in oil and turned buy hand and oil come out of back and tube.Blew air in pickup tube clould not hold air back HELP




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Dick L

03-24-2008 13:22:38




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 I Am Lost Here in reply to Butch P, 03-24-2008 08:05:30  
Have you primed the pump since you blew air thru the pump? If you have the pan off you can check the oil pump drive pin from under neath. The pin is thru the cam shaft just ahead of the rear cam bearing.

Once you have air in the system it has to be forces out the bottom by putting oil in the top of the pump. I do it a little different than most. I take a foot or so of rubber gas line and clamp it over the end of the tube fitting that screws into the tee in the head. I take a pump oil can and fill the hose a coupla times with motor oil letting it run down in between fillings. I then fill the hose and force oil down the tube with the pump can. I them put the end of the hose under the rocker arms and crank the engine over until oil comes out the hose. That will prime the pump if it just needs priming. I take the spark plugs out so it will turn over easy some times. If it does not prime I have pictures that I can post to show you where the pin is located. A fellow was able to put a new pin thru the cam to get his pump turning a while back. I can help you work thru that if priming does not work.

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Butch P

03-25-2008 08:03:35




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 Re: I Am Lost Here in reply to Dick L, 03-24-2008 13:22:38  
I have the pump out,the pin and drive seam fine maybe I lost prime



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old

03-24-2008 08:21:45




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 Re: AC-C no oil pressure in reply to Butch P, 03-24-2008 08:05:30  
Check the oil filter. If the tube in side of the filter has broke or got a hole in it that could be where you problem is



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Butch P

03-24-2008 08:47:02




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 Re: AC-C no oil pressure in reply to old, 03-24-2008 08:21:45  
Oil filter ok took out pressure gauge and cranked engine no oil came out



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old

03-24-2008 08:57:22




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 Re: AC-C no oil pressure in reply to Butch P, 03-24-2008 08:47:02  
Have you pulled the pan and checked to make sure the oil pump pick up tube hasn't fallen off of the pump.



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Butch P

03-24-2008 10:52:01




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 Re: AC-C no oil pressure in reply to old, 03-24-2008 08:57:22  
Yes I blew air from pump side and could not hold the presure at the end of the pickup tube



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old

03-24-2008 11:05:51




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 Re: AC-C no oil pressure in reply to Butch P, 03-24-2008 10:52:01  
Then about the only other thing that could be wrong is the oil pump drive has broken some how



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