broke off autolite glow plug. Help!
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Elder User
Joined: Feb 2010
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This is worth a try, use with caution, remove the threaded broken glow plug on #8 cyl., put some heavy canves or something on top of the glow plug bore, to catch the broken glow plug, close the hood and start the eng, the combustion might push/blast the broken glow plug out of the bore, then you can replace the glow plug with a new NON AUTOLITE glow plug, spray a little water on the broken glow plug to soften the carbon around it, hope that helps, Chellie
Chellie,
Are you saying to actually start the engine or just crank it over with the IDM relay removed to prevent the engine from actually starting. Would one method give the glow plug tip more of a "push" out of the cylinder head over the other?
Secondly, what exactly are you saying I should spray water onto to soften the carbon around it? Should I put a little water down into the glow plug bore and let it soak into the lodged glow plug tip for a while? Would that cause the tip to swell more and prevent it from dislodging?
I do like the idea and I will try it as soon as I can find the time to tear it down again and try it.
Thanks
Senior User
Joined: Jun 2010
Posts: 286
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From: hesperia calif.
Chellie,
Are you saying to actually start the engine or just crank it over with the IDM relay removed to prevent the engine from actually starting. Would one method give the glow plug tip more of a "push" out of the cylinder head over the other?
Secondly, what exactly are you saying I should spray water onto to soften the carbon around it? Should I put a little water down into the glow plug bore and let it soak into the lodged glow plug tip for a while? Would that cause the tip to swell more and prevent it from dislodging?
I do like the idea and I will try it as soon as I can find the time to tear it down again and try it.
Thanks
Are you saying to actually start the engine or just crank it over with the IDM relay removed to prevent the engine from actually starting. Would one method give the glow plug tip more of a "push" out of the cylinder head over the other?
Secondly, what exactly are you saying I should spray water onto to soften the carbon around it? Should I put a little water down into the glow plug bore and let it soak into the lodged glow plug tip for a while? Would that cause the tip to swell more and prevent it from dislodging?
I do like the idea and I will try it as soon as I can find the time to tear it down again and try it.
Thanks
If the broken piece does not come out by just cranking the eng, start the eng. it wont hurt a thing, be ready to shut it off in a hurry when the broken piece comes out
hope that helps, Chellie
Senior User
Joined: Jun 2010
Posts: 286
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From: hesperia calif.
Chellie,
Are you saying to actually start the engine or just crank it over with the IDM relay removed to prevent the engine from actually starting. Would one method give the glow plug tip more of a "push" out of the cylinder head over the other?
Secondly, what exactly are you saying I should spray water onto to soften the carbon around it? Should I put a little water down into the glow plug bore and let it soak into the lodged glow plug tip for a while? Would that cause the tip to swell more and prevent it from dislodging?
I do like the idea and I will try it as soon as I can find the time to tear it down again and try it.
Thanks
Are you saying to actually start the engine or just crank it over with the IDM relay removed to prevent the engine from actually starting. Would one method give the glow plug tip more of a "push" out of the cylinder head over the other?
Secondly, what exactly are you saying I should spray water onto to soften the carbon around it? Should I put a little water down into the glow plug bore and let it soak into the lodged glow plug tip for a while? Would that cause the tip to swell more and prevent it from dislodging?
I do like the idea and I will try it as soon as I can find the time to tear it down again and try it.
Thanks
No, Metal will not swell when wet, sure pour a little water in the bore, not to much, just enough to wet the carbon and soften it.
Would one method give the glow plug tip more of a "push" out of the cylinder head over the other?
yes, starting the eng will give more pressure to blow the broken GP out.
try cranking first, if that does not work, start the eng.
Senior User
Joined: Jun 2010
Posts: 286
Likes: 0
From: hesperia calif.
just make sure to cover the GP Bore with a heavy canves or something, shut the hood, the broken GP piece can come shooting out of there like a bullet, so be careful
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From: Rochdale MA
I once had to replace a hood that sported a hole from a spark plug.............
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Elder User
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One more question is that when I was under the valve cover, I noticed there were passages that were wide open surrounding the pushrods. Isn't there a possibility the broken tip could fall back down into the engine block through one of these passages?
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From: hesperia calif.
