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Allis Chalmers Discussion Forum
:

allis b spark plug hole.....

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tooltime

05-12-2008 18:34:26




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I noticed that number one spark plug was bubbling out a bit of fuel?, i took plug out checked washer on plug, put back in and same thing, Then i took plug out and wrapped threads with some pipe thread and now everyting is ok. What could be going on here??? Thanks, Jim




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tooltime

05-13-2008 14:43:41




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 Re: allis b spark plug hole..... in reply to tooltime, 05-12-2008 18:34:26  
thanks everyone! im learning a bit more every day from guys like you. Jim



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soundguy

05-13-2008 07:48:57




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 Re: allis b spark plug hole..... in reply to tooltime, 05-12-2008 18:34:26  
Before i would keli coil it.. I'd look for a spark plug thread repair kit.. or have it drilled and rethreaded for a larger plug.. or use a set of anti foul adapters and see if you can get them to seal.

Have you tried a new plug?

soundguy



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tooltime

05-13-2008 14:46:19




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 Re: allis b spark plug hole..... in reply to soundguy, 05-13-2008 07:48:57  
i think a year or so you helped me out on a ford jubilee i was working on at the ford site. Thanks for all your help. the advice is priceless!



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soundguy

05-13-2008 19:41:52




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 Re: allis b spark plug hole..... in reply to tooltime, 05-13-2008 14:46:19  
Could be.. I usually hang at one of the ford sites as i mostly own fords. I do have an allis G though as well.

soundguy



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Jeff Z.

05-12-2008 19:35:05




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 Re: allis b spark plug hole..... in reply to tooltime, 05-12-2008 18:34:26  
Sounds like the threads in the head are getting worn out.
You can have a Heli-Coil put in the head and it will be better than new.



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tooltime

05-13-2008 04:15:28




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 Re: allis b spark plug hole..... in reply to Jeff Z., 05-12-2008 19:35:05  
what is heli-coil, and were do i get such a thing. also how do i use heli-coil or how does it work? thanks Jim



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Jeff Z.

05-13-2008 04:58:56




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 Re: allis b spark plug hole..... in reply to tooltime, 05-13-2008 04:15:28  
They are a stainless steel thread insert.
The original spark plug hole is drilled out larger and then threaded. The Helicoil is then threaded into the new spark plug hole. You can get them at NAPA.
If you are not sure about doing the job yourself NAPA machine shops will do it or check your area for engine machine shops.

http://www.helicoil.in/helicoil.htm



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Jeff Z.

05-13-2008 05:11:08




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 Re: allis b spark plug hole..... in reply to Jeff Z., 05-13-2008 04:58:56  
Just a thought. If you take the head to the shop it would be a good time for the valves to be reseated and have the guides checked.
I had NAPA reseat the valves and replace two valve guides and all the valve springs and machine the head surface for under $200.00.



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tooltime

05-13-2008 19:04:22




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 Re: allis b spark plug hole..... in reply to Jeff Z., 05-13-2008 05:11:08  
Thanks Jeff. sounds good to me, i like to learn new things and everyone helps out so much, its great! thanks, Jim



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