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Old 11-27-2007, 04:52 PM   #1
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Default glow plug hole stripped??

just as the title says. Yesterday i took out my glow plug because it was flooded so after getting the excess fuel out i put the glow plug back in and pulled the pull start twice without the ignitor on to check if it got it all out, and my on second pull i heard a pop and my glow plug landed about 5 feet away from me i laughed then tried to put my glow plug back in but when i went to tighten it i got to it being sort of tough then it got easier then it got tough then it got easier, and then i pulled the plug out again and there was a thin piece of metal around the plug threads and i pulled it off. it was part of my engine glow plug hole and it was indeed striped. has this happened at all to you? the hobby guy said i can replace a part that basicly replaces the threads with out replacing the whole head. i just want to know what caused this.
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Old 11-27-2007, 06:04 PM   #2
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You can replace the head button.
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Old 11-27-2007, 06:31 PM   #3
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You most likely stripped it out by cross threading when installing the plugs. Be more careful with the next button.
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Old 11-27-2007, 06:56 PM   #4
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What engine is it? The threads either got cross-threaded or you got dirt in the threads and wore it out. Some engines have a button, some are complete heads. If its a complete head, you can try an aftermarket billet head instead.
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Old 11-27-2007, 07:10 PM   #5
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OS 18 tm

a billet head will be tougher? and how could i cross thread it, it only goes in one way and im not that dumb to try to tighten it left..
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Old 11-27-2007, 07:14 PM   #6
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Quote:
Originally Posted by pinky2252s View Post
OS 18 tm

a billet head will be tougher? and how could i cross thread it, it only goes in one way and im not that dumb to try to tighten it left..
That's not what cross threading means. Anyhow, the stock heads are fine. I have an extra one if you want to buy one cheap. pm me
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Old 01-13-2008, 07:00 PM   #7
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Why not use a thread repair insert like Heli-coil?
Just find out the thread count/pitch metric or sae and get a kit.
Is a new head cheaper? Heli-coil complete kit is about 30 bucks for everything you need. Drill bit tap and insert install tool.
You may even find racers that already have the set and will do it for you?
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Old 01-13-2008, 07:03 PM   #8
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buy a new head button you wont regret it.
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Old 01-13-2008, 07:05 PM   #9
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Quote:
Originally Posted by F N CUDA View Post
Why not use a thread repair insert like Heli-coil?
Just find out the thread count/pitch metric or sae and get a kit.
Is a new head cheaper? Heli-coil complete kit is about 30 bucks for everything you need. Drill bit tap and insert install tool.
You may even find racers that already have the set and will do it for you?
Thats about the price of some buttons new. It will never work right either, because you'll have a heli-coil insert sitting in the combustion chamber and hopefully it doesn't leak.
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Old 01-13-2008, 07:57 PM   #10
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Quote:
Originally Posted by pinky2252s View Post
OS 18 tm

a billet head will be tougher? and how could i cross thread it, it only goes in one way and im not that dumb to try to tighten it left..
just get a button you dont need a head and take the whole motor out and flush it for metal particles

and cross threading is not going the wrong way
your still going clockwise but you cross the threads and kinda start making your own
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