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Unread 04-04-2015, 05:18 PM   #1
Jcarney1200
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1975 CJ5 
 
Join Date: Jul 2013
Location: Sahuarita, Az
Posts: 63
zero oil pressure

So I just recently replaced my oil pan gasket and oil pump gasket. .. added oil today and have zero oil pressure. Question is do I have to prime my oil pump our let the engine run till it gets suction. I let the engine run for 20 secs and had no pressure. Help please

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Unread 04-04-2015, 05:23 PM   #2
Jcarney1200
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1975 CJ5 
 
Join Date: Jul 2013
Location: Sahuarita, Az
Posts: 63
By the way its a amc 304 V8 1975 cj 5
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Unread 04-04-2015, 05:38 PM   #3
FrontierGander
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1973 CJ5 
 
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Location: Boncarbo, Colorado
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I'd prime it. We did it on our 73 258 I6 and it has great oil pressure. Why chance it?
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Unread 04-04-2015, 05:54 PM   #4
Jcarney1200
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Location: Sahuarita, Az
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How do I do that...
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Unread 04-04-2015, 07:12 PM   #5
sojourner55
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Prime the oil by removing the distributor running a cut off screw driver with a drill in the oil pump spindle which the lower distributor shaft mates to.
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Unread 04-04-2015, 08:02 PM   #6
Jcarney1200
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1975 CJ5 
 
Join Date: Jul 2013
Location: Sahuarita, Az
Posts: 63
I was reading that you can also fill the pump and oil filter up with oil and do it that way has anyone tried that?
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Unread 04-04-2015, 11:08 PM   #7
jeepdaddy2000
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1971 CJ5 
 
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Location: Eagle Point, Oregon
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Quote:
Originally Posted by Jcarney1200 View Post
I was reading that you can also fill the pump and oil filter up with oil and do it that way has anyone tried that?
You should always fill the filter when you do an oil change.

Prime the pump by packing it with some Vaseline. This will provide some suction to pick up the oil from the pan.
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Unread 04-05-2015, 10:39 AM   #8
Jcarney1200
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1975 CJ5 
 
Join Date: Jul 2013
Location: Sahuarita, Az
Posts: 63
To all... the vasoline method is a thing of beauty! Packed it this morning torqued everything down cranked it up and have full oil pressure. Thanks for all the good advise and now I can add this to my knowledge base
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