broken glow plug
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broken glow plug
does anyone have a good way to remove a broken glow plug ?? it is broke off about a 1/4 inch above the surface .i hate to have to pull the head off. its on number 7 cly..no i did not break it off i bought the truck like this.its a 1989 ford f-350 superduty 7.3 thks
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From: USA
you might try drilling it with a small bit and putting a slide hammer on it.
another option if that don't work is to tap it with a 5/32 tap and making a puller for it I have not removed a glow plug this way but have pulled plenty of broken/froze pins this way.
if it falls into the cylinder I have seen post where people have got them out other ways than pulling the head I think one was to pull the injector and fish it out I don't know if that works or not.
good luck.
another option if that don't work is to tap it with a 5/32 tap and making a puller for it I have not removed a glow plug this way but have pulled plenty of broken/froze pins this way.
if it falls into the cylinder I have seen post where people have got them out other ways than pulling the head I think one was to pull the injector and fish it out I don't know if that works or not.
good luck.
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Joined: Oct 2003
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From: Monroe, WA
Sounds like it broke right under the hex, huh! It will still need to be screwed out. I can't think of any nifty tool that would help, except maybe a left hand drill bit. If it drills down a long ways I would pull that injector out and put a small magnet down the hole, incase the tip breaks of inside.
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From: New York
best bet would be to weld a nut to the top of it. then ya just use a wrench to back it out. plus the ehat from welding ussually breaks up any corrosion on the threads and lets it come out real easy. never did it on a glow plug but plenty of broken bolts and a few spark plugs. just be careful near all them fuel lines.
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From: clyde,ny
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From: NEBRASKA
Had one break on me last year when replacing them on a 1995.
Tryed easy-out and broke it off in the glow plug tube. Managed to get the broken part of easy-out out of tube with a vise-grip. Decided to leave it alone and just replace other 7. This was where too much thinking and convencing was the wrong decision. The easy-out had actually forced the shaft of the glow plug down thus placing the tip of the glow plug in the perfect position to meet the top of the piston. This is when I decided to pull the head as it would be the easiest method of replacing the piston. Took the head to machinest to get the glow plug out.
It ended up he was unable to remove it and I had to get a new head. All is well now.
Tryed easy-out and broke it off in the glow plug tube. Managed to get the broken part of easy-out out of tube with a vise-grip. Decided to leave it alone and just replace other 7. This was where too much thinking and convencing was the wrong decision. The easy-out had actually forced the shaft of the glow plug down thus placing the tip of the glow plug in the perfect position to meet the top of the piston. This is when I decided to pull the head as it would be the easiest method of replacing the piston. Took the head to machinest to get the glow plug out.
It ended up he was unable to remove it and I had to get a new head. All is well now.
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From: Dallas, TX
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3 broken easy outs and still not coming out HELP ME PLEASE MR WIZARD. i have drilled the glow plug as deep as i dare to do .the hole is at least a 3/4 inch deep ,this thing is like welded into the head.
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From: SoCal
check out this web article, very usefull !!!http://members.shaw.ca/k2pilot/Glow%...20article.html
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From: Keizer, Or
This isn't a solution to the problem at hand, but it's something I would like to do when I rebuild my 6.9.
I've been told that GM 24 volt glow plugs of the military spec can be used in place of the 12 volt glow plugs in regular GM diesels. I've never tried this but supposedly a 12 volt current supply won't ever burn up a 24 volt glow plug.
So my idea is to have my 6.9L heads modified to use the 24 volt glow plugs. I don't know if there is an overall length issue that may cause a problem with this mod, but its definitaly something I'm going to look into to avoid a head removal.
Good Luck
I've been told that GM 24 volt glow plugs of the military spec can be used in place of the 12 volt glow plugs in regular GM diesels. I've never tried this but supposedly a 12 volt current supply won't ever burn up a 24 volt glow plug.
So my idea is to have my 6.9L heads modified to use the 24 volt glow plugs. I don't know if there is an overall length issue that may cause a problem with this mod, but its definitaly something I'm going to look into to avoid a head removal.
Good Luck