Dipstick spitting oil.....
Dipstick spitting oil.....
Posting Guru
Joined: May 2003
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From: Thomson, GA
In inproperly functioning crankcase vent. Blow-by creates pressure inside the crankcase, and the dipstick tube acts like a straw- taking some oil with it. I have the same problem, so if you get it fixed. let me know, cause when I made something to plug it off, it started POURING oil out of my rear main.
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Senior User
Joined: Jun 2003
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Guess what..... it still spits oil. : (
Looks like it does it after the engine warms up.
Does anybody have any suggestions?
(A friend said maybe the dip stick needs a rubber sealer a the end.?) Is this true?
Looks like it does it after the engine warms up.
Does anybody have any suggestions?
(A friend said maybe the dip stick needs a rubber sealer a the end.?) Is this true?
Post Fiend
Joined: Apr 2002
Posts: 7,157
Likes: 1
From: Central Kali
I have never seen a seal. Do you have a lot of miles on the engine? Blowing oil out was common when PCV first came out. I have not seen a lot of problems since then.
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Senior User
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I havent driven the truck yet. I'm ready for inspection. The truck has appx +150k miles on it. It sounds fine except for air escaping from the doughnut gasket from the muffler/manifold.
I don't know what to do... : (
I don't know what to do... : (
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Post Fiend
Joined: Jun 2002
Posts: 13,873
Likes: 3
From: Atlanta GA
It might not have the correct dipstick. I would change the oil and filter, add the correct amount of oil (5-6 quarts depending on engine), run the engine three to five minutes, shut off, wait 20 minutes, then check the dipstick and see if it jives with what you are suppose to have.
It could be too long or you have too much oil. If the crank is totally submerged in oil it might be possible to have the crank push the dipstick out.
It could be too long or you have too much oil. If the crank is totally submerged in oil it might be possible to have the crank push the dipstick out.
Posting Guru
Joined: Feb 2002
Posts: 1,115
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From: seattle us
Regarding the donut, that is a common problem for these trucks. I've owned 3 and all of them had problems. The fix is easy as just tightening the bolts on the collector, or possibly replacing the donut.
Post Fiend
Joined: Jun 2003
Posts: 8,209
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From: Black Hills of SD
It is possible that you just have excessive blow-by. Ihave actually seen a few cases where it would blow the dipstick out. 150,000 was well into rebuild time for most of these engines. You might try experimenting with different pcv valves and see if it helps. I don't know of a way to find out how they are calibrated but you might try one for a 460 or a 534 if they had one.
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Senior User
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OK. Finally. I got the "breather" oil cap and now it really works. The "oil spitting" stopped.
I guess there was too much pressure in the engine and it pushed oil from wherever it could. (even puched the PVC valve out of the engine a few times!)
Problem #364 fixed. : )
I guess there was too much pressure in the engine and it pushed oil from wherever it could. (even puched the PVC valve out of the engine a few times!)
Problem #364 fixed. : )
New User
Joined: Jan 2008
Posts: 0
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Just for giggles.
PCV Valve stands for > Positive Crankcase Ventilation Valve.
With the crankshaft turning & piston's going up & Down thousands of times, the pressure build-up has to go somewhere.
The probable cause is leaking piston rings.
PCV Valve stands for > Positive Crankcase Ventilation Valve.
With the crankshaft turning & piston's going up & Down thousands of times, the pressure build-up has to go somewhere.
The probable cause is leaking piston rings.
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Just for giggles.
PCV Valve stands for > Positive Crankcase Ventilation Valve.
With the crankshaft turning & piston's going up & Down thousands of times, the pressure build-up has to go somewhere.
That is why the Oil breather cap helped a lot too.
The pressure has to go somewhere.
The probable cause is leaking piston rings.
PCV Valve stands for > Positive Crankcase Ventilation Valve.
With the crankshaft turning & piston's going up & Down thousands of times, the pressure build-up has to go somewhere.
That is why the Oil breather cap helped a lot too.
The pressure has to go somewhere.
The probable cause is leaking piston rings.