I agree with Colin on this point. Aluminum is a soft material and I've had
problems that required Heli Coils but these were only on high stress, high
torque applications. Pulled so many transmission mounting and head to case
bolts on my racing Harley's that it became standard practice to incorpora
the ngk sparkplugs i've been using have antisieze applied to the threads rite
out of the box! ready to install,, steve jones n212kr
I threw a plug the other day, I was told that all bolts and screws into
aluminum should be heli-coiled, I want to put this out there as a heads up.
The problem is that aluminum is so soft it vibrates plugs out very easily.
Joel
-- http://USFamily.Net/info - Unlimited Internet - From $8.9
Joel & netters
Aluminum is not too soft to hold onto plugs if they are torqued properly. I
have completed more tune-ups on aluminum head engines than I can remember, and
never had a properly torqued plug back out. The secret is to use Permatex
Antiseize on the plug threads, and install at the
I had this same problem with one of my motorcycles. It took 1/2 the thread with
it, so I got all the plug threads helicoiled. That fixed it and I never had a
plug come loose in it again.
5 matches
Mail list logo
