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Fuel Bubbling out From under glow plug??

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Fuel Bubbling out From under glow plug??

Old 09-24-2012, 08:27 AM
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Default Fuel Bubbling out From under glow plug??

I just broke in my os .21 xzb. I have fuel bubbling out from under the glow plug. Any one ever have this issue? Was it a glow plug or the button? I called os and they said to try an new glow plug first which I am. I've never seen this happen before..
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Old 09-24-2012, 09:23 AM
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Originally Posted by CarFanatic View Post
I just broke in my os .21 xzb. I have fuel bubbling out from under the glow plug. Any one ever have this issue? Was it a glow plug or the button? I called os and they said to try an new glow plug first which I am. I've never seen this happen before..
What plug are you using (os) I assume cause I think all the other brand's have little different taper where it seals to the button. try a new plug (os plug is what you should use) you may not have it tight enough try this to seat it better. tight'n then loosen tight'n a little more then loosen then tight'n again and see if it seems to want to go tighter. Hope this helps
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Old 09-24-2012, 09:26 AM
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Try to use os plugs only for OS engines iirc. And yeah try tightening it and see if it stops.
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Old 09-24-2012, 09:34 AM
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Um...yeah...that's not good.
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Old 09-24-2012, 09:39 AM
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I am using os plugs. P3's And the plug was all the way tight. I can only guess its either the plug is messed up, or the head is. its letting air and fuel by though.
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Old 09-24-2012, 10:01 AM
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That's happened to me be before, just ensure the plug is tightened down a bit, not too much but nice a snug, that should stop the flow of fuel from going through the threads, also ensure you have the cooper gasket, give it a try, thanks.
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Old 09-24-2012, 10:09 AM
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this is a turbo plug, no gaskit on these.
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Old 09-24-2012, 10:22 AM
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it sounds like the button head or the plug has a out of spec thread size pop in a new plug and see if it stops.
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Old 09-24-2012, 10:54 AM
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thats my thought as well. Going to try a new plug, hope thats all it is.
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Old 09-24-2012, 07:53 PM
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sounds like it's time for a new head button.....ouch


http://www.amainhobbies.com/product_...OS-Head-Button
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Old 09-24-2012, 08:07 PM
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It was the glow plug.
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Old 09-25-2012, 07:57 AM
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Originally Posted by CarFanatic View Post
It was the glow plug.
fixed....good deal...
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