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| | | | Joined: Dec 2008 Posts: 64 Wrench Fetcher | | Wrench Fetcher Joined: Dec 2008 Posts: 64 | Good day everyone. Sorry this is kinda long. I'm trying to help a fellow with a diesel p/u. He's done put in a new set of piston rings, because it was burning a quart of oil in 10-15 miles. as well he did valve guide seals, (& of course head gasket). Afterwards it used a quart in 1200 miles. "Great!" But now, its using a quart in 40 miles again...question is" how can we seat the rings with out pulling it all apart again ?" (Oh yeah, its an imported pick up, but I hope we all can lend a hand) thanks for any help, suggestions.
everybody is ignorant @ something.the more we work together, the less ignorance there is floating around
| | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | If the rings were seated to where he used a quart every 1200 miles, I think that is all the seating you can do. Something is wrong. Either he got it hot or there is a leak in the air intake that dusty air is getting into the engine. It doesn't take long to "dust" an engine. | | | | | Joined: Mar 2010 Posts: 112 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2010 Posts: 112 | ctrworker writes, "burning a quart of oil in 10-15 miles...Afterwards it used a quart in 1200 miles"
This is an engine which direly needs a full rebuild, new pistons, rebuilt head, bearings, the whole works.
Burning oil at a quart per 15 miles, your friend is lucky this engine did not blow, had to be blowing out a military level smoke screen. At a quart per 1200 miles, this is still really bad. Back to a quart per 40 miles, this engine will seize a piston fairly soon; gets crooked then digs into the cylinder wall.
This is indicative of pistons and cylinder walls being plumb worn out, way beyond wear tolerance. If not for being diesel, you could hear those pistons rattling like marbles in a shaken tin can.
Symptoms are, hard starting, low compression and a blue to blue-white smoke from the exhaust pipe.
A full professional rebuild is the only cure.
Billyray
1948 GMC 3 Ton Flatbed
1952 Chevy 1/2 Ton Panel
1956 Chevy 3/4 Ton NAPCO
| | | | | Joined: Dec 2008 Posts: 64 Wrench Fetcher | | Wrench Fetcher Joined: Dec 2008 Posts: 64 | I will let him know. Thanks for the input, it sounds good to me.
everybody is ignorant @ something.the more we work together, the less ignorance there is floating around
| | | | | Joined: Feb 2004 Posts: 29,803 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,803 | I've seen worn-out Diesels suck up enough of their own lubricating oil to run on it, with the fuel shut off. That situation usually results in a severe overspeed condition, with parts flying in all directions. Get it rebuild before he hand-grenades the engine!
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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