Oil issues
I just put a 4.0 into my xj the motor is from a 96 that had been sitting for over 6 months but had been a good motor before. I replaced all the gaskets and oil pump and all that. I finally got it put in and running but the oil is not reaching the top of the motor. I know the pump is good cause I took it back and and tested it and still nothing. I don't know where to even look. Any help or advice is greatly appreciated. Thanks
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What kind of oil filter are you running? What is your oil pressure reading?
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I've swapped the oil filter 2 times. And j know the oil is making it to the filter just not anywhere else. It's not reading any oil pressure at all
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When you replaced the oil pump how did you install the pickup tube into the new pump?
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Originally Posted by 95Forrest
I've swapped the oil filter 2 times. And j know the oil is making it to the filter just not anywhere else. It's not reading any oil pressure at all
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Originally Posted by cruiser54
When you replaced the oil pump how did you install the pickup tube into the new pump?
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Originally Posted by 89 xj stroker
Did you check the oil filter adapter? Maybe with it sitting for 6 months, some sludge could have built up and is blocking oil flow. |
There is a possibility that the tube is sucking air where it is pressed into the pump.
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I hope you primed the pump, yes? they won't pump air.. also, if you remove the dist, you can spin the pump without cranking the motor. did you use a gasket between the pump and the engine? and lastly, you DID top off the crankcase with oil, right? good luck finding the issue!
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Originally Posted by kjc
I hope you primed the pump, yes? they won't pump air.. also, if you remove the dist, you can spin the pump without cranking the motor. did you use a gasket between the pump and the engine? and lastly, you DID top off the crankcase with oil, right? good luck finding the issue!
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Originally Posted by kjc
I hope you primed the pump, yes? they won't pump air.. also, if you remove the dist, you can spin the pump without cranking the motor. did you use a gasket between the pump and the engine? and lastly, you DID top off the crankcase with oil, right? good luck finding the issue!
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How exactly did you test to see if oil was goin through the block?
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Originally Posted by 89 xj stroker
How exactly did you test to see if oil was goin through the block?
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Originally Posted by 95Forrest
I made sure the oil pump worked by testing it with a drill in a bucket of oil. And I took the sending unit out and cranked it and oil sprayed out but it's just not getting to the top of the block |
Originally Posted by 89 xj stroker
Now that it is in the engine, take the distributor off, take the oil filler cap off, crank it with a drill and a long large screwdriver with the handle taken off, and have a friend with a flashlight look into the valve cover to see if oil is getting up in there. If the pump is working, and you have oil, and the oil filter adaptor is new, then there should be no reason (that i can think of) that is keeping oil from flowing. I have heard people say that it can take up to like a minute for oil to get to the top, so be patient. |
How much sludge was there? Cheap oil won't cause that, lack of changes on time will.
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1 Attachment(s)
Originally Posted by andyg
How much sludge was there? Cheap oil won't cause that, lack of changes on time will.
Attachment 69703 |
1 Attachment(s)
But I didn't use that head. And I cleaned the block of almost all of the sludge but obviously Missed something. This is the head I ended up using
Attachment 69704 |
Head gasket on wrong, blocking oil flow to the head?
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Originally Posted by cruiser54
Head gasket on wrong, blocking oil flow to the head?
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I know, but we're at our wit's end now. You need an oil flow diagram for the engine.
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I just read the section on the lube system in my fsm for my 95 and according to it the rocker arms are lubricated thru the push rods...might want to check and make sure they are clean inside....that old rocker assembly was pretty cruddy
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Originally Posted by xjforfishing
(Post 1244207)
I just read the section on the lube system in my fsm for my 95 and according to it the rocker arms are lubricated thru the push rods...might want to check and make sure they are clean inside....that old rocker assembly was pretty cruddy
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Originally Posted by xjforfishing
I just read the section on the lube system in my fsm for my 95 and according to it the rocker arms are lubricated thru the push rods...might want to check and make sure they are clean inside....that old rocker assembly was pretty cruddy
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try putting a mechanical gauge where the sender is to see what your pressure is...as posted earlier you could use a drill to spin the pump and see if you get oil on top and see how much pressure you build up...just a thought
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Originally Posted by 95Forrest
I made sure the oil pump worked by testing it with a drill in a bucket of oil. And I took the sending unit out and cranked it and oil sprayed out but it's just not getting to the top of the block |
Originally Posted by 89 xj stroker
Did you look into the valve cover after the pump was installed to make sure what your saying is true? |
Originally Posted by 95Forrest
The valve cover isn't on. I never put it on until I get everything right.it's messy buts it saves time |
Originally Posted by 89 xj stroker
So... thats a yes? If so, try some seafoam in there, if there is gunk in there, it should clear it out. |
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