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Old 09-02-2009, 05:30 PM   #1
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Default Smoke coming out of engine?

Anybody know why this would happen? I preheated my engine to 215 and smoke started coming out of the glow plug. Especially when i took it out. Let me know
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Old 09-02-2009, 05:36 PM   #2
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Old 09-02-2009, 05:43 PM   #3
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Originally Posted by jhipps835 View Post
Anybody know why this would happen? I preheated my engine to 215 and smoke started coming out of the glow plug. Especially when i took it out. Let me know
If the heat gun was directed right at the glow plug it could have melted the insulator. It also may have cooked some oil, after run maybe, that might have accumulated around the glow plug hole.
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Old 09-02-2009, 05:48 PM   #4
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So what should i do?
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Old 09-02-2009, 05:50 PM   #5
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The engine isnt ruined is it?
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Old 09-02-2009, 05:50 PM   #6
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Also there was i could see oil towards the bottom of the cylinder head.
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Old 09-02-2009, 05:50 PM   #7
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Do you put after run oil in? After run oil makes a nice plume of smelly smoke.
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Old 09-02-2009, 05:54 PM   #8
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Take the plug out, see if it works, put a drop of oil or a drop of fuel in it and if it looks ok, fire it up...I do not heat them on the head, I heat it up uniformly, on the block, left, right,and rear...heat rises.
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Old 09-02-2009, 05:57 PM   #9
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Ok i took it off but no smoke came out. It must have all came out with it in. But the piston is now stuck at top dead center and the engine was still at 190. Is that cool enough to make it stuck?
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Old 09-02-2009, 05:57 PM   #10
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oh and no i didnt use after run oil
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Old 09-02-2009, 06:21 PM   #11
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Would the insulator being melted affect the way the engine runs? Because when i started it, it wouldnt stay running . So i a am guessing it does but a confirmation would be nice.
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Old 09-02-2009, 06:35 PM   #12
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did you have the glow plug all the way tight? if not exhaust will come out from around the glow plug. that insulator is made to withstand high temps, so I doubt that's what was smoking.

everytime your done running the engine, you have to rotate the flywheel down to where it feels free opposite of Top Dead Center. if it's stuck at top use a flat blade screw driver to rotate the flywheel free, and rotate it down. you have to do that before it cools down if you don't want to cause damage.
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Old 09-02-2009, 06:36 PM   #13
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Yea for some reason the glow plug came loose. And yea just to be sure i took the entire exhaust off so i could see the piston at bdc and thats where it is at now. Would the smoke cause the engine to act funny? Because when i started it the engine wouldnt stay running but yesterday it would
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Old 09-02-2009, 06:50 PM   #14
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did you have the glow plug all the way tight? if not exhaust will come out from around the glow plug. that insulator is made to withstand high temps, so I doubt that's what was smoking.

everytime your done running the engine, you have to rotate the flywheel down to where it feels free opposite of Top Dead Center. if it's stuck at top use a flat blade screw driver to rotate the flywheel free, and rotate it down. you have to do that before it cools down if you don't want to cause damage.
When you've got your piston at BDC, grab a paint pen or some fingernail polish and put a mark on your flywheel that you can reference again. Put it whatever position you want, 12 o'clock, 6 o'clock, 9, etc... Just make it easy to remember. That way, you can very quickly spin your motor down to BDC.

About the glow plug, the copper washer has a "dish" to it. You should always install it with the dish facing down (picture an upside down bowl). If it's on upside down, the plug may not seal, and you can get leakage...or course, this is assuming that you're not using a Turbo plug. If you are, ignore what I just said...
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Old 09-02-2009, 10:03 PM   #15
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It is very likely that your plug has fouled during the break in process..Put a new plug in it and it should run just fine
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