[vector1]

i am going to use some locktite stuff on another radiator fitting i'm changing out and maybe these two. it's kinda funny, there is a couple stains from the same fittings from previous owner dyno use only, so it is not my technique i don't think. i've never seen this before or had problem with pipe threads leaking. the housing and one fitting are al, the plug is steel. guess i'll have to put the hammer to 'em.

thanks for the input.