The Ford Barn - 31 Eaton radiator cap

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400A	01-09-2025 06:32 PM

31 Eaton radiator cap

I have a choice 31 Eaton radiator cap, but it is unusable because the inside steel portion rotates within the stainless shell. Does anyone know of a reliable way to fix this?

nkaminar

01-09-2025 07:25 PM

Re: 31 Eaton radiator cap

Photos would help.

J Franklin

01-09-2025 09:43 PM

Re: 31 Eaton radiator cap

Jb-weld

Bob Bidonde

01-10-2025 10:17 AM

Re: 31 Eaton radiator cap

1 Attachment(s)

I also recommend that you add corrosion prevention to the cap.

400A	01-10-2025 10:43 AM

Re: 31 Eaton radiator cap

The corrosion protection is a good idea. I use POR on my gas caps and the coating lasts a few years before it begins to peel. At least whatever peels off is likely caught in the spark arrestor so no contamination of the fuel.

Bick in New Zealand

01-10-2025 06:54 PM

Re: 31 Eaton radiator cap

1 Attachment(s)

I had a similar problem a while back. The difference was mine was on the car and I couldn't get it to release. I ended up drilling a small hole and putting a pin through it so that both parts were locked together. This was a mint Eaton, that had been restored. Now sitting on the shelf waiting for a solution.....
I am currently running a locking cap with a greyhound.

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