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Pagoda SL Group  |  W113 Pagoda SL Group  |  Drive train, fuel, suspension, steering & brakes  |  Topic: Spark plug non-foulers Advanced search
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Locked Topic Topic: Spark plug non-foulers  (Read 9921 times)
« on: June 13, 2011, 10:47:02 »
Eminent
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A spark plug non-fouler is something that is screwed into the head. Into the non-fouler goes the spark plug.
Will this work? Not that i have fouled plugs, just wondering.

« Last Edit: June 13, 2011, 13:35:47 by Eminent » Logged

 
Reply #1
« on: June 13, 2011, 11:45:29 »
badali
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What does it claim to do?
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Brad

1966 230 SL
2005 CLK 500 Cabriolet
2013 Subaru Impreza Premium
2014 Subaru Impreza Limited
 
Reply #2
« on: June 13, 2011, 13:30:04 »
Eminent
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Sorry. I should've explain that.
Cause my English is not that good i've copied an explanantion form another site.

It is a device that screws onto the sparkplug be for you screw it into the sparkplug hole.
It has a small hole in it which allows the gas Vapor to enter this hole but keeps oil out. When the plug fires it ignites the gas vapor and the engine works. But it keeps oil from splashing on the plug and fouling it.


I can imagine that i has a negative effect on the ignition.
But another thought. The thread from cilinder 6 is not that good anymore. I need to be carefull when placing the spark plugs. If i put such a non-foulder in the head and keep it there i'm not using the thread of the head anymore.
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Reply #3
« on: June 13, 2011, 13:53:32 »
ja17
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These are a poor temporary fix for a serious engine problem. They help keep oil off the spark plugs by shielding it and remotely locating it. You may possibly want to use one in an emergency but it is in no way a good fix. Besides changing the spark heat range by shielding and moving the spark plug these units also lower the compression in that particular cylinder by increasing the combustion chamber volume.

It is possible to repair damaged spark plug threads by installing a thread insert, without removing the cylinder head.
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Joe Alexander
Blacklick, Ohio
 
Reply #4
« on: June 13, 2011, 14:11:52 »
Eminent
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You mean heli-coils?
I always thought that the head should be removed for that.
Thanks for your answers.
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Reply #5
« on: June 14, 2011, 05:31:27 »
graphic66
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I have installed many heli coils on engines without removing the head. You grease the drill and tap to catch most of the metal bits and turn the engine over without a plug before using it. Also, the shavings are almost always soft aluminum and won't hurt anything. The item shown does work, back in the day many V8 Chevys had a rear cylinder that would always foul plugs with oil and you just used one of those and they ran fine. 
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Reply #6
« on: June 14, 2011, 06:35:04 »
ja17
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Hello,

Go to a good auto parts store. The insert may not be a real heli-coil. They make some special inserts to use. There are a variety of types and some come in a kit with the tool to ream the hole and cut the new threads. Be sure to get the ones long enough to do the job.
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Joe Alexander
Blacklick, Ohio
 
Reply #7
« on: June 14, 2011, 09:18:52 »
Eminent
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Thanks for all tips and answers. It is not so far yet that thread is fully bad.
But there will be a day it is. So i'll keep this topic in mind.
Thanks again.
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