Spark plugs

jaywapti

It seems like I have been putting a dab of anti-seize on my plugs forever, talking to a mech friend who works at a dealership, he said that they don't use it anymore.

To me it just seems like the right thing to do, plugs always come out easier and it helps prevent dissimilar metal corrosion.

Your thoughts ???

JAY

ilove22s

when i was doing my own tune up, i would use some anti-seize on the plugs.

to me, it was just some cheap insurance to not have any issues on the next tune up.

BAMAAK

Can't hurt. Especially as long as you go between changing them now. It can lead to overtorquing though.

Jay

jaywapti wrote: »

It seems like I have been putting a dab of anti-seize on my plugs forever, talking to a mech friend who works at a dealership, he said that they don't use it anymore.

To me it just seems like the right thing to do, plugs always come out easier and it helps prevent dissimilar metal corrosion.

Your thoughts ???

JAY

That's why I always have. My last several trucks had aluminum heads. Spark plugs are steel. I always put anti seize on plugs going into aluminum heads. Never had a problem on cast iron heads....

Gene L

My truck has 16 plugs...anything I can use to make this onerous task rare is a step I'm going to take.

zorba

Always. Spark plugs, glow plugs, and fuel injectors.

Once had an aluminum engine with a stuck plug. Got it out OK, but I was *REALLY* lucky...

Teach

Just don't overdo it, a tiny dab goes a long way, and put the antisieze on the threads only. Spark plugs cool themselves by transferring heat from the body of the plug to the cylinder head by metal to metal contact at the sealing surface, either the gasket or a tapered seat. Grease or anti-sieze (which is atomized aluminum powder in a grease base) can insulate the plug and cause it to burn out prematurely. The trick to keeping from damaging threads in aluminum heads is to NEVER remove or reinstall plugs with the engine hot. The aluminum and the steel expands/contracts at a different rate, and changing plugs on a hot engine can set the stage for some difficulties the next time the plugs are removed.
Jerry

avmech

Been doing it on planes and my vehicles for a very long time, especially Aluminum heads. A dab 'll do ya.......I use the aviation goop Champion sells for planes on all plugs.

jaywapti

avmech wrote: »

Been doing it on planes and my vehicles for a very long time, especially Aluminum heads. A dab 'll do ya.......I use the aviation goop Champion sells for planes on all plugs.

I use the same stuff, don't know why but the aircraft stuff is nickel and moly based.

JAY