The radiator cap for my 3 year old Allisport tank has sprung a leak. I can't wait for one to arrive from the UK. I am looking to replace it with a generic Gates/Motorad/Stant cap. Do you guys know what psi I should be looking for the replacement cap?

I know 16 psi is fairly common. However, I recollect somewhere that our Discos run at 20 psi (I have a 4.6L Turner engine). Can someone confirm please?

Thx in advance!

 

I heard fro Allisport. They updated this style coolant tank to a new design (with a threaded cap).

They advised this old style tank uses the standard Land Rover part (PCD100150). This is the same cap used by the Defenders, P38 and D1s. I did a quick check on the Web. One of the sites show 0.9 to 1 bar. So, this is a 14.5 psi cap.