Big Problems, need advice
Thread Starter
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Senior User
Joined: Jan 2007
Posts: 298
Likes: 1
From: Mexico
Big Problems, need advice
I have 2 broken glow plugs, #2 and 6, that my mechanic can't get out. While I was in Mexico the mechanic there busted them good. Number 2 has an easy-out sticking out the top and number 6 is sheared off smoothly.
I am back in the good ole USA and have taken my truck to the mechanic that rebuilt my engine 3 years ago. He has pulled the head and saw the tip of one of the plug tips laying in the pre-combustion cup. Luckily it never fell into the cylinder. He sent it to a machine shop but they can't get them out.
I am looking for any suggestions on removing the remnents of these plugs. Can they be touched out or drilled?
If I have to replace the head can I use a 6.9 head on my 7.3?
Thanks
I am back in the good ole USA and have taken my truck to the mechanic that rebuilt my engine 3 years ago. He has pulled the head and saw the tip of one of the plug tips laying in the pre-combustion cup. Luckily it never fell into the cylinder. He sent it to a machine shop but they can't get them out.
I am looking for any suggestions on removing the remnents of these plugs. Can they be touched out or drilled?
If I have to replace the head can I use a 6.9 head on my 7.3?
Thanks
Thread Starter
|
Senior User
Joined: Jan 2007
Posts: 298
Likes: 1
From: Mexico
Thanks for your reply.
What would you recommend for a penetrating fluid. I read on this site that Tranny fluid and acetone mix works well. Any other recommendations?
If I have to swap out the heads can a 6.9 be mounted on a 7.3?
What would you recommend for a penetrating fluid. I read on this site that Tranny fluid and acetone mix works well. Any other recommendations?
If I have to swap out the heads can a 6.9 be mounted on a 7.3?
Posting Guru
Joined: Dec 2005
Posts: 1,528
Likes: 0
From: Peterborough, Ontario
I'd say try a different machine shop. It may be necessary to go to an actual machine shop, versus an automotive shop, to find someone that can EDM the centre out of the GP's to the crests/roots of the thread.
Fleet Owner
Joined: Jul 2006
Posts: 20,376
Likes: 843
From: Mi'kma'ki
once fixed/replaced heads,only use motorcraft (made by beru) glow plugs to avoid this problem in the future.
a lesson learned the hard way by too many IDI owners here on this site alone sadly.
anyone else running any other brand of GP in your diesel...hope you heed the warning and avoid the op's problem.
a lesson learned the hard way by too many IDI owners here on this site alone sadly.
anyone else running any other brand of GP in your diesel...hope you heed the warning and avoid the op's problem.
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Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
The 6.9 heads will fit ... However, the holes for the head bolts are smaller requiring drilling.
7.3 rockers can be installed on the 6.9 and is a recommended upgrade for '86 and older 6.9s, '87 6.9 already has them.
The broken easy out needs to be EDM'd out, might as well do the other while at it.
The others soak them in a PT fluid, push them out with a flat tipped round rod thats basically the same diameter as the hole, optimally a loose slip fit. I think it's 3/16" that works good.
-Enjoy
fh : )_~
7.3 rockers can be installed on the 6.9 and is a recommended upgrade for '86 and older 6.9s, '87 6.9 already has them.
The broken easy out needs to be EDM'd out, might as well do the other while at it.
The others soak them in a PT fluid, push them out with a flat tipped round rod thats basically the same diameter as the hole, optimally a loose slip fit. I think it's 3/16" that works good.
-Enjoy
fh : )_~
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Elder User
Joined: Mar 2008
Posts: 912
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From: Marianna, Florida USA
Cornking, I've had some luck taking a hex nut over the broken part and welding them together. If it breaks off do it again. Between the heat and cooling, it should come out. I've used this technique to remove many broken exhaust manifold bolts. Good Luck!!
GeneO
PS:
It wouldn't hurt to use anti-seize on the new GPs and don't over tighten.
I like to heat my GPs before installing them to make sure they are OK.
GeneO
PS:
It wouldn't hurt to use anti-seize on the new GPs and don't over tighten.
I like to heat my GPs before installing them to make sure they are OK.
Postmaster
Joined: Jan 2010
Posts: 4,319
Likes: 4
From: Elk City, OK
that would work if it was a threaded piece. hes talking about the tip, no thread. the mechanic just used the easy-out to just try to break the seal. a left handed drill bit would do the same as a standard drill bit in his case.