DAK
Active Member
I am looking to find a replacement radiator cap for my 1968 2000 TC manual car. The radiator in question has a non relieving cap on the top of the radiator (chromed) and a relieving cap on a tank on the side of the radiator. When they made those caps, they only included a few threads on the cap, even though the radiator has at least 3-4 times as many threads. The result is that 50 years on, the threads on the cap are worn to the point that they will not engage enough of the threads in the radiator to keep things from leaking. Has anyone else out there experienced this issue and found a solution? I have looked high and low to find a serviceable used cap with no success. I have talked to a radiator shop about modifying the radiator but all of their solutions would be higher than the existing cap and there is not enough clearance between the cap and the underside of the bonnet. I have yet to figure out how to successfully attach a photo but my radiator is the same as the car in the article at this link Thoroughly Modern Auntie – 1968 Rover P6 2000TC