Oil Magic Trick
#1
Oil Magic Trick
...ok, so it's not the oil magic trick you were hoping for, but I got your attention didn't I?!
I have about 2-3 quarts of oil "disappearing" every 300 miles or so. I change the oil and within a few hundred miles my oil light comes on. I check the dipstick and no oil! I completely cleaned the undercarriage of the truck - no signs of leaks. No oil in the driveway where I park it. No smoke or burning oil smell coming from the exhaust. Even if it was burning oil, I highly doubt that 2-3 quarts in 300 miles could go unnoticed in my rearview.
My 83 pickup has a 22R (131,000 miles), desmogged with a Weber carb - breather filter on the front valve cover hole and PCV valve routed down to the EGR plate provided by weber. I use 10w-30 pennzoil high mileage.
The motor seems to be running great, but has a way of making oil disappear! I simply can't figure out where it is going and it's driving me nuts.
Any ideas??
I have about 2-3 quarts of oil "disappearing" every 300 miles or so. I change the oil and within a few hundred miles my oil light comes on. I check the dipstick and no oil! I completely cleaned the undercarriage of the truck - no signs of leaks. No oil in the driveway where I park it. No smoke or burning oil smell coming from the exhaust. Even if it was burning oil, I highly doubt that 2-3 quarts in 300 miles could go unnoticed in my rearview.
My 83 pickup has a 22R (131,000 miles), desmogged with a Weber carb - breather filter on the front valve cover hole and PCV valve routed down to the EGR plate provided by weber. I use 10w-30 pennzoil high mileage.
The motor seems to be running great, but has a way of making oil disappear! I simply can't figure out where it is going and it's driving me nuts.
Any ideas??
#2
Registered User
No blue smoke huh? Does the oil, when you drain it change it, smell like gas? Sounds like blow by, but if you don't smell burning oil...
I have a breather on my valve cover, and it definitely makes the area around it wet, but not 3qts wet.
So if I read your post right, you ran your PCV valve to the egr? So it's dumping into your exhaust manifold? I like the idea, just never heard of doing it that way. I would think that routin it that way would pressurize the system, rather then running from the intake which is producing a vacuum.
Sorry I don't have any answer for you.
I have a breather on my valve cover, and it definitely makes the area around it wet, but not 3qts wet.
So if I read your post right, you ran your PCV valve to the egr? So it's dumping into your exhaust manifold? I like the idea, just never heard of doing it that way. I would think that routin it that way would pressurize the system, rather then running from the intake which is producing a vacuum.
Sorry I don't have any answer for you.
#5
Registered User
#6
Well, my wife absolutely hates my truck so.....maybe I have my first suspect! LOL
RBX, the PCV valve is routed back to the EGR port on the intake manifold, not the exhaust. I may have mis-spoke.
I'm thinking that it could be blow by, but 2-3 quarts in 300 miles still seems alot.
Anyway of determining for sure if it is blow by? Wouldn't I notice oil coming directly out of my exhaust??
RBX, the PCV valve is routed back to the EGR port on the intake manifold, not the exhaust. I may have mis-spoke.
I'm thinking that it could be blow by, but 2-3 quarts in 300 miles still seems alot.
Anyway of determining for sure if it is blow by? Wouldn't I notice oil coming directly out of my exhaust??
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#9
I bought the truck about a 1,000 miles ago. Spark plugs look good, and it's been losing oil like this since I bought it. It's weird though because
The motor is otherwise running really well. Should I seafoam it and then run some Bar's Leaks through it??
The motor is otherwise running really well. Should I seafoam it and then run some Bar's Leaks through it??
#10
Registered User
IMHO If you cant find any leaks right now, I think adding Bar's Leak will only create a new problem now or down the road. That stuff can clog it up even worse.
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