I installed a 2" worm gear SS clamp around the bottle cap today. Seems to be working, judging from the increased stiffness of the upper radiator hose it is holding more pressure and the gauge temperature has a dropped about 5 degrees with AC off, and dropped 15 degrees with the AC on. Note, my E-fan does not run unless the AC is on (yet), so I am running between 170 and 190 F, with ambient at 80 to 90 F currently. When it hits 100 F ambient, in a 2 hr stop and go freeway parking race at 5 pm, it will get the real test.
Oh and I tried to remove the cap with the worm gear installed, :shocked:, guess what, it ain't happen, won't even budge.!party1: Also, I have seen no more signs (visual or audible) of any leaks.
I did start having idle, stalling problems due to yesterdays antifreeze spill, right after the spill, but washed everything down (electrical, like the TPS) with brake cleaner and no more problems.
Discussed the bottle with Gerr, and it sounds like there are two major brands out there, the good, or better one, currently being Crown's, according to Gerr. I am ordering one from him to try it out. The first bottle I had may have been a Crown. It may be, as Mud8 said a quality control issue.
I don't think it is cap issue (this time), but it has been said (last year) that there was a bad batch of caps running around last year. Wondering now if the cap builder is different from the bottle builder, and if there is more than one cap maker running amoke. I have heard of, and seen several caps that have a different stamp on the cover.