What I see in the picture is the top of a spark plug surrounded by the crush washer from another spark plug. This crush washer is preventing the op from removing the original spark plug. Or it's my imagination.
WHATS IN MY SPARK PLUG THREAD
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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Get a bolt extractor set, one for small diameter bolts/ends, as they have teeth that will grab and remove stubborn bolts etc. Use downward force and slowly back out whatever it is from the threads. Once fully removed from threads you may need a magnet to pull it from the plug slot.
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Well then, how did they do a compression test? Can they use an adapter that doesn't screw into the spark plug hole threads?
After the compression test the OP tried to install the spark plugs and found the hole plugged up.
Unless he put his spark plug wrench into that hole BEFORE he put a spark plug in his wrench, I don't understand how that obstruction happened. Still, the helpful suggestions on how to remove, whatever it is, are good.
it will be interesting to see what it is and 'how' and 'when' it happened.
Some info definitely seems to be missing.
Buffalo4
PS: I guess that while he was installing sparkplugs in the adjacent cyls the rubber plug may have dropped out of the socket and into the hole. I would think he would have realized that when he put the spark plug in the socket to do that cyl, as it wouldn't stay in the socket without that rubber plug. 🤯
wow, I am missing all the drama over here. I have heard of UFO's, but have not seen one lodge itself in the spark plug tube of Honda odyssey of all vehicles.
So lets for a second forget how it got there and concentrate on hot to get it out of there.
Did the shop put plugs back in after they did compression test?
Do you have mechanics mirror? Do you have a boroscope inspection camera? You got to find a way to better inspect whatever is in there.
Basically, you need to determine if the thing in there is wedged or screwed.
Poke it with a screwdriver while using a mirror, does it move? If so, get something like
www.harborfreight.com
Does not have to be magnetic, just use the spring legs to grab the object and get it out.
If you see a hex, then most likely its screwed in. In that case, you need to use deep socket, try various sizes until you get the one that grabs and spin it out.
Use either magnet or above tool to get it out once you unscrew it.
So many questions, so little time ......
So lets for a second forget how it got there and concentrate on hot to get it out of there.
Did the shop put plugs back in after they did compression test?
Do you have mechanics mirror? Do you have a boroscope inspection camera? You got to find a way to better inspect whatever is in there.
Basically, you need to determine if the thing in there is wedged or screwed.
Poke it with a screwdriver while using a mirror, does it move? If so, get something like
24 in. 2-in-1 Magnetic Pickup Tool
Amazing deals on this 24In 2-In-1 Magnetic Pickup Tool at Harbor Freight. Quality tools & low prices.
www.harborfreight.com
If you see a hex, then most likely its screwed in. In that case, you need to use deep socket, try various sizes until you get the one that grabs and spin it out.
Use either magnet or above tool to get it out once you unscrew it.
So many questions, so little time ......
Not if there is a hole in that plug. I would bet that if you crank the engine over now a lot or air comes out of that hole. Does it? Course you don't want to take the chance of it getting sucked in.
Is it possible that the plug was in the hole and you pushed it into the spark plug threaded hole while attempting to put in a new plug?
Either way, you need to get it out. Maybe even use a long lag type bolt that will screw into that rubber plug, or whatever it is and it might be able to pull it out, A left handed thread would be best, if they even make such a thing.
QUESTION? Did the mechanic do the compression test in his shop? If so, how did you get the Ody back to your place?
Buffalo4
Maybe they did not really do the test.Well then, how did they do a compression test? Can they use an adapter that doesn't screw into the spark plug hole threads?
After the compression test the OP tried to install the spark plugs and found the hole plugged up.
Unless he put his spark plug wrench into that hole BEFORE he put a spark plug in his wrench, I don't understand how that obstruction happened. Still, the helpful suggestions on how to remove, whatever it is, are good.
it will be interesting to see what it is and 'how' and 'when' it happened.
Some info definitely seems to be missing.
Buffalo4
PS: I guess that while he was installing sparkplugs in the adjacent cyls the rubber plug may have dropped out of the socket and into the hole. I would think he would have realized that when he put the spark plug in the socket to do that cyl, as it wouldn't stay in the socket without that rubber plug. 🤯
Was the OP actually there?
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