Please Help- massve oil use!
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TECH Apprentice
Joined: Nov 2001
Posts: 308
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From: Midland Texas
Please Help- massve oil use! I had a comp cam 222-226 561-569 lift 114 ls. And a set of Mac headers w/orpipes installed a while back and the car started using oil bad. I am talking a quart every 30-40 miles. No it is not leaking it I am positive. We took the stock heads off and found some wore valve guides that were not causing any problems before. We put on another set of stock 2001 heads same part number casting 241. Still using oil bad. The valve train is very noisy compared to the 2 other cammed cars I have heard it is a little noisier. Could this be a bad cam grind or could the camm be degreed wrong? I feel it is due to the cam somehow. I need some help here bad I cannot afford to keep tearing into the motor. The car has 14k miles on it. Oh yea it smoke pretty good when getting on it and changing gears. It is more of a white smoke, but also a little grey.
Thanks in advance for any and all advice.
Thanks in advance for any and all advice.
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TECH Apprentice
Joined: Nov 2001
Posts: 308
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From: Midland Texas
Re: Please Help- massve oil use! Maybe the smoke is blue, as much oil as I am using it probably is blue. I have big suit stains on my driveway(car has dumps) that didnt start till the am install.
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From: Bay Area, CA
Re: Please Help- massve oil use! </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by DG Gordon:
<strong>Maybe the smoke is blue, as much oil as I am using it probably is blue. I have big suit stains on my driveway(car has dumps) that didnt start till the am install.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">blown head gasket?, rings are gone? do a compression test and a leakdown, you might find your answer there.
<strong>Maybe the smoke is blue, as much oil as I am using it probably is blue. I have big suit stains on my driveway(car has dumps) that didnt start till the am install.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">blown head gasket?, rings are gone? do a compression test and a leakdown, you might find your answer there.
Re: Please Help- massve oil use! Well, the greyish smoke is from extra fuel. Its not oil. Oil is blue. How did you know that the valve guides were worn out? In 14k miles? Having the cam degreed wrong wont cause your problems. You didnt shim the rocker arms did you? If the rocker arm geometry is wrong, it will definitely wear out the valve guides fast.
Brad
Brad
Re: Please Help- massve oil use! DG:
Sorry to hear that your car is STILL down. I remember you posting this problem a LONG time ago.
I dont see any possible way for the cam itself to make it burn oil. You might try replacing the PCV valve with the #12572717 part that supposedly helps reduce consumption. Along the same line, there is usually a baffle in front of the PCV hose that comes out of the valve cover. Did you change valve covers or in some way delete the baffle so oil can now get sucked directly into the hose?
I still am saying that there is NO WAY you can burn a quart of oil in 30-40 miles without your exhaust looking like a mosquito fogger and I dont mean just when you jump on it!
I have rebuilt engines for customers whose cars burned oil so bad that cops were pulling them over. Those cars were only burning a quart every 200 miles or so.
Did you replace the oil filter like I suggested? I had a problem with a customer's vette that was using oil like crazy immediately after an oil change. I found a crack on the bottom edge of the oil filter that only opened up at higher speed when the oil pressure of course is greater. The oil sprayed straight down onto the road at high speed, but stopped at idle and low speed so a puddle or leak never showed. My only clue was the bottom of the oil filter was wet, but the sides were dry.
<small>[ April 11, 2002, 11:18 PM: Message edited by: GTO69JUDGE ]</small>
Sorry to hear that your car is STILL down. I remember you posting this problem a LONG time ago.
I dont see any possible way for the cam itself to make it burn oil. You might try replacing the PCV valve with the #12572717 part that supposedly helps reduce consumption. Along the same line, there is usually a baffle in front of the PCV hose that comes out of the valve cover. Did you change valve covers or in some way delete the baffle so oil can now get sucked directly into the hose?
I still am saying that there is NO WAY you can burn a quart of oil in 30-40 miles without your exhaust looking like a mosquito fogger and I dont mean just when you jump on it!
I have rebuilt engines for customers whose cars burned oil so bad that cops were pulling them over. Those cars were only burning a quart every 200 miles or so.
Did you replace the oil filter like I suggested? I had a problem with a customer's vette that was using oil like crazy immediately after an oil change. I found a crack on the bottom edge of the oil filter that only opened up at higher speed when the oil pressure of course is greater. The oil sprayed straight down onto the road at high speed, but stopped at idle and low speed so a puddle or leak never showed. My only clue was the bottom of the oil filter was wet, but the sides were dry.
<small>[ April 11, 2002, 11:18 PM: Message edited by: GTO69JUDGE ]</small>
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On The Tree
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From: Chicagoland
Re: Please Help- massve oil use! Aren't there some "plugs" of some sort in the oil system that can be knocked out accidentally and cause huge oil loss like this? I seem to remember reading about this occasionally here and on the "other" board. Wish I knew more, <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> hopefully this might point you in the right direction.
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TECH Apprentice
Joined: Nov 2001
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From: Midland Texas
Re: Please Help- massve oil use! I had a 73 impala that burned a qt. every 100 miles and it look like I was driving around spraying for bugs.
This cars exhast points down so maybe I am not noticing it as much. I changed the PVC valve a while ago and no help. My valve train is a little to noisey. Comp cams told me it could be improper preload on the lifters causing the guides to wear out.
This cars exhast points down so maybe I am not noticing it as much. I changed the PVC valve a while ago and no help. My valve train is a little to noisey. Comp cams told me it could be improper preload on the lifters causing the guides to wear out.
