Oil consumption problem cont.....
08-20-2005, 03:01 PM
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Oil consumption problem cont..... Well I went and cranked the car and smoke is coming from the oil filler hole. Does this narrow my search for the culprit at all?
If you didn't read the first thread, basically I am burning about 1 qt of oil every 50 miles.
If you didn't read the first thread, basically I am burning about 1 qt of oil every 50 miles.
Last edited by Beeler422; 08-20-2005 at 07:08 PM.
08-20-2005, 03:26 PM
#2
Not immediately. Could be blowby, BUT if it is right when you start the car it could very well be condensation from the motor sitting and being that is the highest part of the motor it would only make sense. If it is a constant thing then I would tend to think more of blowby. Just how bad are you talking?
08-20-2005, 03:38 PM
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Well, it's not BAD. But it is a constant flow of light smoke.
I just went and tried to take a video of it but the smoke wouldn't show up in the picture.
I just went and tried to take a video of it but the smoke wouldn't show up in the picture.
Last edited by Beeler422; 08-20-2005 at 03:48 PM.
08-20-2005, 05:17 PM
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Ok, here are the results of the compression test.
Cylinder 1: 130 psi-Oil on spark plug.
Cylinder 2: 140 psi-clean.
Cylinder 3: 141 psi-Oil on spark plug.
Cylinder 4: 151 psi-clean.
Cylinder 5: 155 psi-clean.
Cylinder 6: 138 psi-clean.
Cylinder 7: 148 psi-clean.
Cylinder 8: 150 psi-clean.
So.....where do I go from here? C'mon experts!
Cylinder 1: 130 psi-Oil on spark plug.
Cylinder 2: 140 psi-clean.
Cylinder 3: 141 psi-Oil on spark plug.
Cylinder 4: 151 psi-clean.
Cylinder 5: 155 psi-clean.
Cylinder 6: 138 psi-clean.
Cylinder 7: 148 psi-clean.
Cylinder 8: 150 psi-clean.
So.....where do I go from here? C'mon experts!
08-20-2005, 06:45 PM
#6
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I just did a quick search and I *think* its supposed to be in the175-200 range, but also found out that the cam plays a role in how much preasure it bleeds off. On the other hand all the numbers look to be some what consistant so maybe the rings arent the problem.
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08-20-2005, 08:36 PM
#8
Hmm... What cam do you have in the motor? You should still make upwards of 150+ I would think because the larger displacement will create more volume and raise the compression. What I would do now is take a small oil squirt can and do another test. Test the motor again with it dry then squirt some oil in the cylinder and test again. Do this with the motor cold. If the compression raises then you have bad rings. The oil will seal the rings some. If it stays the same then you are probiably ok. Try this and post back. This gives us a starting point.
08-20-2005, 10:07 PM
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I have the R1 cam in the motor. The specs are:
232/236 .575/.578 114. I will do that test tomorrow. I will have to go buy a squirt can.
My compression was supposed to be 11:1.
232/236 .575/.578 114. I will do that test tomorrow. I will have to go buy a squirt can.
My compression was supposed to be 11:1.
08-20-2005, 10:37 PM
#10
Static compression has alittle to do with the dynamic compression of the motor. But the overlap of the cam has more to do with it than anything really. I would think the compression of the motor would be higher than what it is. Like I said check it out and see.
08-21-2005, 04:17 PM
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Ok I did the test with the oil can. The sresults were mixed so I didn't do all cylinders. Some stayed exactly the same, and some increased. #1 stayed constant at 130 psi. #2 went from 140 psi to 160 psi. #3 stayed the same as well as #4. So now what?
08-21-2005, 05:21 PM
#14
To me if you had 2 or more cylinders go up that points to bad rings. Also with #1 so low, sounds like the valves may not be seating properly. I'd probiably pull the motor and pull the heads and see what's up. If anything a valve job is needed on the heads. 160 on cylinder #2 and 130 on 1 points to a big sealing issue. Might not be the heads, but you won't know anything until you pull em.
08-21-2005, 08:13 PM
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The valves not seating properly wouldn't cause the oil problem tho would it? I mean, I'll pull the heads and get them redone, but that can't be the oil problem. Right?
08-22-2005, 02:32 AM
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A no name shop that went out of business did them. Everything was flawless from the beginning. At least from what I could tell. It ran fine for about 2 years.
08-22-2005, 09:02 AM
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Remove rocker bolts (I think the ones that are over the intake side of the heads) and check to see if the hole goes all the way through. I had this problem on ported heads and was sucking oil through there.
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