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Blue/Gray smoke @ idle

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Old 01-29-2006, 11:07 AM
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Blue/Gray smoke @ idle

I've noticed it appears that I'm getting more blue/gray smoke at idle than what was normal.
It's more predominate when cold - which I understand to be normal.

Is this a sign of timing being off, valve's needing adjustment (need to do this anyway)?

Looks like a 'gasser' that's burning oil.
(yeah, I know this is an 'oil' burner)

I still haven't put gauges in - don't have any other parameters to provide.
Old 01-29-2006, 05:09 PM
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if it's doing it after it warms up, it's probably your timing.
Old 01-29-2006, 05:17 PM
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Yes, it is.
Today was in the mid 70's and still smoking after it had been well warmed up.

I'm assuming it has slipped.
Seems to run fine overall. But, it has been a 'little' hesitant starting in the morning when cold, not bad, just an extra rotation before firing. - we're talking mid 30's here in Texas.

Anyone recommend a shop that will deviate from factory specs regarding the timing in the Dallas/Ft. Worth area?

It's in stock condition, the only I might do in the future is add a 3k GSK spring kit and maybe move the stock fuel plate.
Would 16 degrees advance be too much?
I don't want to lose much/any bottom end - but wouldn't mind an increase of mileage at highway speed.
Old 01-29-2006, 05:25 PM
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I only see blue right after she starts, then when its cold it blows white for about 2 minutes under load then gone
Old 01-29-2006, 06:22 PM
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Mine BLOWS the smoke in the cold mornings(20 degrees) for around 3 to 4 minutes. It starts on the very first crank and runs excellent. How much smoke is too much when its cold out and she is warming up? I know mine just sits there and blows smoke at the stupid neighbors,, Their problem not mine AHA AHHHA AHHHHHAAA
Old 01-29-2006, 07:49 PM
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You owned it since new? Sure no prev. owners didnt put in Aftermarket injectors or something?
Old 01-29-2006, 07:56 PM
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i just did a timing advance and it cleared it all up....u prolly get a lil sputtering/shaking for a few seconds during very cold starts too right? well timing got rid of that COMPLETELY
Old 01-30-2006, 03:24 PM
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My timing is done and mine still shakes when it is cold outside unless I plug it in. Anything under 40 degrees she just doesnt like unless plugged.
Old 01-30-2006, 03:56 PM
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''How much smoke is too much when its cold out and she is warming up?''

I'm probably close to 17* in 2nd gen talk. She fires right up, but when it's 0*, she'll fog pretty good. This pic is after being plugged in for 1.5 hours...not really enough to do anything.

Old 01-30-2006, 05:56 PM
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hey G1625S!! im going to school in buffalo and i park the truck all week and go back to TO every friday...and i leave it unplugged since i have no access to an outlet...u remember how last week was freezing...i started mine after about 10 cranks and she only smoked some vapor for 20 sec...no shimmy shaking whatsoever...i had the timing advanced bu Turner Automotive...it made a night and day difference...i also changed the overflow valve when i was there ....maybe that makes a difference....
Old 01-30-2006, 06:16 PM
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What's all that 'white' stuff on the ground?
Remember, I'm here in Texas.
Today was 70 degrees.

Met a customer to discuss their new restaurant and as I'm backing up he's just looking at the smoke coming from the pipe as I fog him - it's a bit annoying.

I don't see anything while cruising, at least that I can tell - might even go so far as having my wife follow on the highway to confirm.
Just so I'm sure I understand - if the timing had slipped, heavier smoke at idle would be the normal symptoms, correct?

Edit:
BTW, I had changed the overflow valve out about 2-3 months ago.
Old 01-30-2006, 06:32 PM
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G1625S
Hey, I recognize that sight and so does my neighbors.Thats what mine does for about 3 minutes and then she clears right up.It starts fast and idles smoothly when its cold. is this normal? or do I have some other problems?
Old 01-31-2006, 05:20 AM
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With the 370's I try not to start the truck if anyone I care about is on the passenger side. They remember me all day due to saturation with diesel fumes.
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