Quote:
Usely if i have a problem some people cant figure out call down to your local O Rielly's ... and talk to them...
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| Oil magically disappearing? https://slantsix.org/forum/viewtopic.php?t=16759 |
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| Author: | Slant440 [ Mon Mar 27, 2006 6:54 pm ] |
| Post subject: | Oil magically disappearing? |
Ok here was my dilemma before I replaced the engine, my father and I were both stumped as to where my oil was going. I would put oil in every day up to 2 quarts a day. But the thing is, the engine never leaked at all. not a drop of oil would come out. I don't think it burned it because my exhaust was clear not blue or black. My antifreeze was always green never had any oil in it. But the one thing I did notice, if my truck didn't have time to warm up and i shut it off for the day when I would start it at the end of the day a lot of black soot would blow out the end on the first fire up and then no more. The only way i relized this was when I drove to school, my truck barely warmed up to about 100 degrees, I shut it off for the day in auto shop. At the end of the day I got into my truck fired her up and as I backed out I looked at the wall and saw a spattered bit of black stuff on the wall. That is all i know. After a couple of weeks of buying oil I gave up and started putting in old oil, from oil changes I did. It still drank it up. finally i went a whole week without putting any oil in it at all. It stayed as low as about 1 1/2 quarts in the engine and no more would dissappear. Weird, and I was wondering if you guys knew of anything like this happening before. Thanks ~Ray |
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| Author: | slant6pos [ Mon Mar 27, 2006 7:36 pm ] |
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Since no one else will say anything, im going to tell you its not Magic... Usely if i have a problem some people cant figure out call down to your local O Rielly's or auto shop and talk to them... Peace |
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| Author: | argentina-slantsixer [ Mon Mar 27, 2006 8:06 pm ] |
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if once that reaches the lower spot won't consume any more oil, I'd say that maybe your dipstick is wrong and you're adding much more oil than it really needs, and the crank is turning it into a mist till is low enough. |
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| Author: | CStryker [ Mon Mar 27, 2006 8:54 pm ] |
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Quote: Usely if i have a problem some people cant figure out call down to your local O Rielly's or auto shop and talk to them...
Don't go this route... you'll probably end up with bad information and an annoyed conterman. If you /do/ want to get information from your local parts store, go in and ask... they'll be much more kind. (And you'll be more likely to get a right answer if the group of countermen can confer among themselves.)After pulling the engine out, did you tear it down? If it's not leaking, really, the only other choice is burning... Can't think of why it would stop burning oil after it got to a quart and a half though. |
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| Author: | GTS225 [ Tue Mar 28, 2006 3:00 am ] |
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Argentina may be on to something with the short or incorrect dipstick idea. Try this.....do an oil and filter change. Do not pre-fill the filter. Dump four quarts into the engine, wait a few minutes to make sure it's all drained down to the pan, then check your oil level. It should be around normal reading on the dipstick. If it's not, then you should start looking at the dipstick instead of the engine. Roger |
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| Author: | Slant440 [ Tue Mar 28, 2006 4:36 am ] |
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Well the dipstick was correct because I did 2 oil changes on it before I just gave up and just kept adding oil...when I took the engine apart nothing looked bad or out of the ordinary ecept that on the pistons there was an unusual amount of carbon build up. It was just a black buildup in the center it was like large pebble like pieces. The largest was about an 1/16th of an inch. But other than that nothing else seemed out of ordinary. All the bearings seemed good and looked like they had plenty of life left in them. The cam wasn't excessively worn. Timing chain and stuff was just normally worn for 185K miles on it. |
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| Author: | Dennis Weaver [ Tue Mar 28, 2006 12:49 pm ] |
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Quote: Usely if i have a problem some people cant figure out call down to your local O Rielly's ... and talk to them...
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| Author: | Patrick Devlin [ Tue Mar 28, 2006 1:27 pm ] |
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Does anybody else here think that maybe Ray's car has a carb problem that is "washing down" the oil off of the cylinder walls and causing excessive oil consumption? That's my best guess. |
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| Author: | Jeb [ Tue Mar 28, 2006 4:33 pm ] |
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I was thinking that too. What does your oil smell like? But the losing 1 1/2 quarts and no more kind of puzzles me. My Duster does the same thing. But that is because of a bad rear main seal. |
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| Author: | Slant440 [ Wed Mar 29, 2006 4:48 am ] |
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It didn't smell bad...a tinge bit burnt but on a 185k miles on an 85 Dodge pickup I would figure it might smell that way. Me and my father rebuilt the carburetor before I even started driving the truck as well because it wasn't working properly when I saved the truck from the junk yard. |
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| Author: | '74 Sport [ Wed Mar 29, 2006 6:21 am ] |
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It's sure odd that you can lose so much oil and not see evidence of leaks or burning (smoke). Have you checked under the valve cover to see if oil is getting to the top end? By the way, if you "blew up two slant sixes", as stated in your signature, that would prove they ARE destructible, not indestructible.  Jerry |
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| Author: | Slant440 [ Wed Mar 29, 2006 7:05 pm ] |
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Quote: Have you checked under the valve cover to see if oil is getting to the top end?
By the way, if you "blew up two slant sixes", as stated in your signature, that would prove they ARE destructible, not indestructible. Jerry A bit of oil was getting up there and there was some oil in the air cleaner and plastic tube. Thanks for letting me know about the INdestructible |
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| Author: | '74 Sport [ Thu Mar 30, 2006 5:37 am ] |
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By "plastic tube" I'm guessing you mean the PCV valve in the top of your valve cover that has a large rubber hose attached? I was just asking about the top end, to make sure the oil passage isn't clogged up. Since you are trying to track down a problem with the oiling system, you might as well check everything.  Jerry |
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| Author: | Charrlie_S [ Thu Mar 30, 2006 7:32 am ] |
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Is the PCV system working properly? Pull the valve out of the valve cover, and see if you have good vacuum at the valve with the engine running. Even with a new valve, the passage in the carb, or the hose could be pluggrd up. This can cause excessive crankcase pressure, and blow oil out, while going down the road. |
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| Author: | mopardemon71 [ Thu Mar 30, 2006 9:25 am ] |
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Ive got that problem with my car, but it is soooo bad I dont need to change my oil it just burns it up. My problem is the valve guide seals are 32 years old and they have become rock hard and shattered. Thus down in the engine goes the oil. If you have the old spark plug tube head, but yours sounds newer, if those seals are hard that be a cause to look at the guide seals on the valves. |
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