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On my 4X4 I saw an oil leak. Traced it to the dipstick. Seams the lower end of the eng. is presurizing and pushing it out the top. Any ideas on what to look for for a fix?
I checked the hose from the oil pan up the the check valve, I blew into it (down to the oil pan) and it gurgled a bit then was clear.
The dipstick stays in place, oil just seeps around it, and down the the lowest point, and then onto the ground.
This truck had not dripped a drop yet until now.

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OK, I'm over it. Where's the beer?

Is the oil comming from the top of the dipstick tube or where it fits into the engine block? Is could be loose where it is mounted.

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I've never been wrong! Once I thought I was, but I was mistaken.
Rick
Loranger, La
1980 Stepside LUV (Again)

i had that happen kinda on a chevy 1 ton 6.5 diesel. except oil was coming out of more than just the dipstick tube.. anyway long story short turns out was a bad cylinder and am in the process of replacing the engine

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zyanug
75 luv stepside... Work in progress
76 fleetside 350hp 1968 327cu
"No replacement for displacement!"
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[_@l__l__@_]***

This is coming from the top of the tube, where the dipstick goes in. The dipstick will have oil up the the rubber seal til I wipe it off and re dip it. Then it will be normal.

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OK, I'm over it. Where's the beer?

I would say a plugged PCV system. Should normally draw the crankcase oil vapors through the small hose from the valve cover to base of the carb for reburning. I remenber it being between the carb and the valve cover, a short hose.

my truck is a 79 and i had the same problem trued out i was not running the right oil in the truck our truck need 20w50 thats whats they are made to run off . but it could too mean that you have a bad o ring on a piston. let me know what weight oil you are running if it not 20w50 change it you will see

I have 20W50 in it.
I cleaned out the check valve on the fire wall, but that didn't fix it. I just unplugged the hose from the oil pan that goes to that valve, and have no problems since.

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OK, I'm over it. Where's the beer?

good deal i didnt think about that