Smoke?
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Joined: Oct 2003
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Smoke?
Here is yet another smoke question:
While sightseeing in the back woods (looking for something four legged) and cruising at a slow crawl for several hours in cold temp's. I get quite a bit of bluish smoke when I finally accelerate and get the rev's up to 2000+.
Unburned fuel from running too cold due to the low rpm and low load????
Although the rad is completely blocked with a grille cover I am running the heat on nearly high. Is this providing enough cooling to cause the engine to run too cold resulting in cylinder wash?
While sightseeing in the back woods (looking for something four legged) and cruising at a slow crawl for several hours in cold temp's. I get quite a bit of bluish smoke when I finally accelerate and get the rev's up to 2000+.
Unburned fuel from running too cold due to the low rpm and low load????
Although the rad is completely blocked with a grille cover I am running the heat on nearly high. Is this providing enough cooling to cause the engine to run too cold resulting in cylinder wash?
Postmaster
Joined: Feb 2002
Posts: 2,773
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From: Bonney Lake, WA
It's cylinder wash that's causing the smoke. If you're trying to sneak up on critters, it isn't logical to run the truck at a faster idle, unless your looking for deaf critters, but that would eliminate the problem.
Posting Guru
Joined: May 2001
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Re: Smoke?
Originally posted by Silence
Here is yet another smoke question:
While sightseeing in the back woods (looking for something four legged) and cruising at a slow crawl for several hours in cold temp's. I get quite a bit of bluish smoke when I finally accelerate and get the rev's up to 2000+.
Unburned fuel from running too cold due to the low rpm and low load????
Although the rad is completely blocked with a grille cover I am running the heat on nearly high. Is this providing enough cooling to cause the engine to run too cold resulting in cylinder wash?
Here is yet another smoke question:
While sightseeing in the back woods (looking for something four legged) and cruising at a slow crawl for several hours in cold temp's. I get quite a bit of bluish smoke when I finally accelerate and get the rev's up to 2000+.
Unburned fuel from running too cold due to the low rpm and low load????
Although the rad is completely blocked with a grille cover I am running the heat on nearly high. Is this providing enough cooling to cause the engine to run too cold resulting in cylinder wash?
Posting Guru
Joined: Dec 2000
Posts: 2,321
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From: Western Colorado USA
Originally posted by Quadzilla
It's cylinder wash that's causing the smoke.
It's cylinder wash that's causing the smoke.
I'd say it's more likely just cold combustion chambers and the smoke is unburned fuel.
Cylinder wash implies fuel contaminating the oil in the crank case by getting past the piston rings, while it's a common horror story, it just doesn't happen that often.
In fifteen years of being around diesels, the only time I've seen it happen was when a guy let a Cummins idle for about 12 hours when the temp was below zero.
