Radiator Cap

[John042]

Hi, what's the correct psi rating for the radiator cap fitted to a 1974 MGB roadster with an 18V engine? The fill point is the centre of the radiator. Thankyou J C.

[Error_404_Username_not_found]

13 psi. IIRC.
If you mean the stock 1800 engine.

[John042]

Thanks, thought the Hive had sent me the wrong cap, marked 1976 - 1982.