Coolant cap untwisting itself, why?

[Pushit2.0]

My car would do this, and only after 1 run on the dyno. So I used a zip tie to hold the cap from twisting, this fixed my problem. I say it was from engine vibration, and this is why I had to safety wire my oil filter.

~John

[95talonracer]

Originally Posted by Pushit2.0

My car would do this, and only after 1 run on the dyno. So I used a zip tie to hold the cap from twisting, this fixed my problem. I say it was from engine vibration, and this is why I had to safety wire my oil filter.

~John

But was yours pushing coolant as well?