89 EF 4wd sedan
I've got a vacuum pump that i could throw on it which would make sealing it up easier than a positive pressure. I was a bit worried about the tank collapsing though. Not really sure what kind of pressure is enough to check, but not enough to accidentally collapse the tank.youre not going to pressure test the tank?
I cut a few spares, hmu.Never used one personally, but pretty sure in North America they are called "cock" rings.