OIl consumption lesson.
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Posting Guru
Joined: Jun 2008
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From: Albuquerque
OIl consumption lesson.
Big big lesson learned. Put this in your bag o tricks. I've had an oil consumption problem twice in the 2.5 years of owning said rig. Thought I was in for an injector rebuild, but all the symptoms weren't there. Lost a gallon of oil in about 70 miles. No issues on start up, no loss of power, no oil burn out the exhaust. Fuel filter isn't black. WTF??? Where is the oil going? Called a local diesel shop. "Change the air filter!!" Huh. Oh yea, the air filter. I've got the 6637 with cover. Didn't look dirty but it was. It was clogged just enough that at power there wasn't enough air to the turbo, so where did the engine get the rest? Out of the crank case, along with some oil. Funny part was, at idle there wasn't any oil coming out the exhaust and the sooting seemed normal. Intake didn't show any abnormal amount of oil either. My truck must be very sensitive to air needs since I didn't think the filter was that dirty. I'm loosing the filter cover so I can monitor it a little better. I sure am happy now. OH 120k on the engine.
Fleet Owner
Joined: Jun 2004
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From: Rio Rico, AZ.
Although it might spook some people because these engines are HEAVY breathers at full boost and even with a new filter it will show some vaccum.
Post Fiend
Joined: Feb 2008
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From: Lancaster, Pa.
Couldn't you use that filterminder we all have taped up and not using, some of us anyways.. Tap into the turbo inlet tube with a fitting before the turbo, run some harder rubber tubing inside the cab with your filterminder. Seems like a cost effective alternative. Great thread by the way Matt, this could help somebody down the line..
Hotshot
Joined: Jan 2008
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From: Rochdale MA
Thanks Dan, not I just have to stop thinking about it ans just do it.
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Duct Tape Tech.
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From: Albuquerque
The part that's crazy is that I did a search on here and it seems that I am the only one that this has happened to, and it's happened twice. I really didn't think my filter was that clogged, yea it was pretty dusty but not like that one shown on here a few years ago where they were literally pouring dirt out of the filter, and it still worked. Guess that dust was worse than dirt and it doesn't take much for it to take the path of least resistance, the crank case breather. Air gota come from somewhere.
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From: La La Land
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The part that's crazy is that I did a search on here and it seems that I am the only one that this has happened to, and it's happened twice. I really didn't think my filter was that clogged, yea it was pretty dusty but not like that one shown on here a few years ago where they were literally pouring dirt out of the filter, and it still worked. Guess that dust was worse than dirt and it doesn't take much for it to take the path of least resistance, the crank case breather. Air gota come from somewhere.
Duct Tape Tech.
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From: San Antonio Tx.
You need to take a look at Guzzles inatallation, he installes the filterminder in the end of the 6637. It works just like the OEM install.
Duct Tape Tech.
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From: San Antonio Tx.
It should work just like the factory set up, if it pulls too much vacuum it will give you a warning light on the instrunent panel. When I had the 6637 on my truck, I wraped a piece of plastic around the air filter and it gave the warning light like it had a dirty filter. I had to reset the filterminder to turn the warning light out. It worked fine. I took the filter off because it was too noisy.
Hotshot
Joined: Jan 2002
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From: La La Land
We went through this about four or five years ago and by trial-and-error pretty-well proved the venturi effect causing erroneous FilterMinder readings.
BTW, why not re-read Guzzle's instructions and see where he got the idea for installing it into the end of the 6637.
http://www.guzzle7pt3.com/filtermind.php
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