Radiator cap

[Phil Waterman]

Hi

You may be able to just go down to the local parts store and find one. The non-pressure is only one of the issues. The other is actually getting the cap to seal on the top of the radiator filler tube. Any imperfections on filler tube sealing surface will defeat the coolant recover. I have taken pressure caps that had the proper tabs to engage the filler tube, then removed the pressure portion of the cap by drilling out the rivet that holds it pressure releaf part, then cut rubber gaskets to get a good seal on the neck of radiator.

Cheers Phil