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WHATS IN MY SPARK PLUG THREAD

3431 Views 83 Replies 23 Participants Last post by  davedrivesody
There is something stuck in my spark plug thread but I already pulled the old one out (it wasn't broken) and had a mechanic do a compression test on it but they checked and have all their pieces from their kit. I have tried using the spark plug socket, pliers, magnets, etc. This is the last spark plug I have to put in and no one can tell me how this thing got in there. It's also at the back of the engine and really hard to access. HELP please
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did all the coils come out in one piece? that kind of looks like a rubber boot or plastic from one of the coils, the pic isn't ideal.

you will need long needle nose pliers long pointed tools to get the pieces out.

working back there is easier if you have a mirror, I use dollar store school locker mirrors, along with some automotive telescopic specialty mirrors.

The best way working back there for periods of time, is put a pad or old cushion on the top of the motor and lay on it while you're working.

are you saying the threads are wrecked?
 

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that kind of looks like a rubber boot or plastic from one of the coils, the pic isn't ideal.
I would agree with this assessment. It is part of the spark plug coil boot. Pick or pliers to get it out, then normal spark plug removal should be easy.

-Charlie
 

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Is that a part from the compression test kit?
but they checked and have all their pieces from their kit.
Something else fell in? Try to pull it out with a long needle nose pliers or try a magnet.
 

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Discussion Starter · #10 ·
I thought it looked like a spark plug but how is that possible? How could I have driven with this one shoved down there and another on top? How would a compression test had been possible with this in there? I'm very confused
 

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After zooming in
It does not look like a plug.
Maybe a gasket that is inside your spark plug socket.
To hold the plug when it is out of its threads.
 
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Weird for sure. What is the timeline again? You pulled the plugs...then a mechanic came to your place and did a compression test...then you tried putting the plugs back in and found this?

I think the compression tester end that screws in came off the hose and is still in there...regardless what the mechanic said.
 

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If they actually did do a compression test, then, THEY caused this problem. What were the compression reading they gave you?
ie, You CANNOT do a compression test in cylinder where the hole is blocked.
It cannot be part of the spark plug socket insert BECAUSE the spark plug was REMOVED!!
An insert sometimes gets stuck to the spark plug insulator, not stuck in the threaded hole.
The coil is the same.

And YES, a better photo could actually help.
If the OP didn't put anything into that hole after he removed the spark plug, then?????
C'mon guys???
Buffalo4
 
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