Removing tight spark plugs

You need to run a thread chaser down the hole, it will cleanup the thread.

Get a can of freeze out from a bolt shop. Then with the motor hot freeze one plug and loosen one turn then run the motor to get it hot again then repeat on the next plug ETC . Eric.

Hi. I had a similar experience in my workshop recently with a Mazda v6. There is no easy way and what you are doing seems to be about the best way. The alloy head material "picks up" on the spark plug thread and tears it away from the threaded plug hole. It is better to keep going in the one direction if you can otherwise it can tear the thread worse from reversing it. It took me 90mins to get 4 tight ones out and I thought one would break for sure but with carefull perseverence I was successful. Had sore shoulders the next day though. Carefully run a 14mm x 1.25mm tap down the threads afterwards and if they are OK put a bit of neversieze on the new plugs. Regards, Bob.

a tip for those reading this, if you do your own plugs make up a tool to insert them safely without any risk of crossthreading.........
Get the rubber boot off the end of a plug lead, make certain it is a tight fit on the plug, get an old screwdriver and cut about 1/2 an inch back from the tip, place the plug boot over the end of the screwdriver shaft with room for the plug to insert fully in over the porcelian bit, get 2-3 small cable ties and fasten the boot to the screwdriver shaft, i then placed some heatshrink over it all to contain it all ...................
When you remove the old plugs, i always did it hot, let the plug fall out of the socket in the hole that is fine, use the "plug driver" to slide over the head and out they come, never get burnt by hot plugs again.....
Get the new plug and place firmly in the rubber boot of "plug driver", ALWAYS wet with some oil on the thread, never use grease or anything else, just plain oil as you use in the motor, use "plug driver" to insert in recess and trun clockwise until you feel the plug bottom out on the thread, you will never ever again get it crossthreaded and will find it heaps easeir to get it in line to start the thread ...............
Sorry but my only advice on getting them out is do it with the motor hot not cold, if plug is recessed as most are pour oil in the recess (heaps, make certain it is clean) and very gently rock it back and forth, may take 1/2 an hour for each plug but it will work....

For stuck bolts and especially when rusted in or from a galvanic reaction I have had success with 'Penetrene'.

Just a dribble around the bolt or sparkplug in this case and leave for a day and see how it goes.

Cheers

David

Thanks for all your ideas guy's it will have to wait for a while can't afford to be with out two cars at the moment if I bust a plug in the head! (no time to fix it).

So in the meantime will just make a turn and lube the threads.

Cheers.

Cool thanks Ted, never put off by a price.
If it saves me time, (and skun knuckles) thats money to me.

Never tried yeild but have heard good reports will have to ring around to find it I guess. Any one know where I can get it?

Cheers