TangoBravo said:
REALLY, I am curious then why does Rolls Royce, Pratt Whitney, Allison, and Rolls Wood all state that if anti seize is not used on thier multi million dollar turbines they will not warrenty ANY failure? I've been sent to these schools by my company and they all state this disclosure.
Exactly how do multi-million dollar aircraft using igniters in a turbine engine compare to consumer grade automotive spark plugs in a vehicle? That's a totally different industry.
tblazerdude said:
I can't stress enough how I said a small amount. 1/4 of the threads, at most.
I've already researched this dozens of times before. Have had GM vehicles for most of my life.
Show me where GM or AC-Delco recommends anti-seize using the Iridium plugs or any other plug for that matter. I may change my mind. Somehow I don't think that's going to happen here. There are tons of pros on BITOG and various other tech websites that state NOT to use anti-seize. THAT is how I came to the decision not to use it.
If you truly understand the warning that the manufactures and engineers express concern about you wouldn't do it either.
TangoBravo said:
If you use ngk in our I-6 you have more issues then possible over torque do to anti seize.
In vehicle applications applying anti-seize is a torque multiplier. Do it and you risk thread damage as NGK and most other spark plug manufacturers say. Especially when used in combination with aluminum heads.
Give me any compatible cross-referenced plug with the correct heat range and reach and it will work. It's kind of misleading to say that X plug won't fire correctly in an engine. Research needs to be done. I've done it and have been found guilty of choosing the wrong plugs. It's easy.
As I said before pretty much most if not all automotive spark plug manufacturers say not to use anti-seize. Look it up yourself and you will see.
If you pay attention to the specific application at hand (automotive spark plugs) you will notice the logic here.
Take a look at this statement again:
"Anti-seize reduces electrical and thermal conductivity between the spark plug and head."
If you truly understand electronics and the thermodynamics involved in heat transfer between similar or dissimilar metals you would have no choice but to agree with the engineers.
I am not about to get into a pissing match here about what specific applications are designed to be wet vs. dry torqued and the like.
All I can comment on is what's generally acceptable in the industry when installing automotive spark plugs. Now if you want to use anti-seize on your spark plugs and or private plane or favorite hobby or engineering product, be my guest. Not going to complain. I just happen to agree with the spark plug manufacturers and I thought it should be known.