oil in valley pan, lots of it

[marcs35ply]

my first post, and a dumb one. I have a 75 power wagon, bought it in 85 from 1st owner. Here's my problem the truck was reuilt 20 years ago. For 16 years I didn't drive the truck that much. 4 years ago I retired. So now, it's my daily. now I've got all kinds of oil in the valley pan. I checked the valve covers, all tight. So I pulled them, all gaskits solid and 1 piece. HELP thanks

 

[oldbee]

You've got a seal problem on the valley pan, PCV could do it,But you still got an intake leak somewhere.

 

[marcs35ply]

intake leak??? Or a valley pan leak??

 

[davek]

intake leak??? Or a valley pan leak??

if your valley pan leaks that means you have an intake leak. How does the truck run? Does your pcv rattle ?

 

[marcs35ply]

if your valley pan leaks that means you have an intake leak. How does the truck run? Does your pcv rattle ?

pcv good new runs good! sprayed carb cleaner on intake No rpm change

 

[davek]

well then I would say your intake is fine. Any loose hoses that are dipping oil around the carb? maybe from pcv

 

[davek]

Wipe the valley pan down and see what happens in a couple days.

 

[marcs35ply]

well then I would say your intake is fine. Any loose hoses that are dipping oil around the carb? maybe from pcv

Not at all.Like I said I'm retired, just trying to save $$$$$$$$$$$$$$$$

 

[davek]

any oil on the air filter?

 

[493 Mike]

My bet is on oil coming up the intake manifold bolt threads.
Mike

 

[davek]

My bet is on oil coming up the intake manifold bolt threads.
Mike

never thought of that.

 

[69L48Z27]

Oil can wick up the intake bolts sometimes. Remove each bolt and put some sealant on each one.

 

[69L48Z27]

My bet is on oil coming up the intake manifold bolt threads.
Mike

You beat me by one minute.

 

[beanhead]

Blow-by can push oil out of all kinds of places. The corners of the valley pan where the heads meet the block can be especially pesky. I would look at the end-rail bolts as well, they can wick oil like the intake bolts.

 

[Ernie ingling]

Might want to check oil pressure sender

 

[33 IMP]

Oil pressure sender, or a cracked valley pan at the bend at the bottom of the head.

 

[Daves69]

A few weeks ago I pulled my cast six pack off. Had a small puddle on the pan. Port areas were dry but the crossovers had some oil. Sorry, I wiped it dry before these pictures were taken, but I do believe that's where my puddle came from. I'm thinking head gasket design, the part that hangs off the block below the crossover, tends to hold oil and can contribute.
FWIW, I did not seal the bolt holes.

Lol, a little clean up and fresh paint for the 50 yo.

 

[BSB67]

I'm not sure how a bolt "wicks" oil. I'll have to hang a bolt in a bucket of oil and see if the top of it gets oily.

How does the oil wicking up the bolt exit out the bolt hole between the air tight sealed intake manifold/pan gasket/head?

How come only some bolts on some motors wick oil?

It seems to me that if oil ends up on top of the pan, in can only get there if there is an intake leak.

Last time took this position on this subject over the majority (which seems to happen on most subjects more often than not) I got a little shinged, but that's okay.

 

[oldbee]

I'm not sure how a bolt "wicks" oil. I'll have to hang a bolt in a bucket of oil and see if the top of it gets oily.

How does the oil wicking up the bolt exit out the bolt hole between the air tight sealed intake manifold/pan gasket/head?

How come only some bolts on some motors wick oil?

It seems to me that if oil ends up on top of the pan, in can only get there if there is an intake leak.

Last time took this position on this subject over the majority (which seems to happen on most subjects more often than not) I got a little shinged, but that's okay.

C'mon BSB, a little crankcase pressure pushing everything up(?) It happens.

 

[BSB67]

Good. It doesnt wick. Now answer the other question.