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Showing results for tags 'coolant recovery bottle'.
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Hi all I recently bought a new rad cap for the 4A, Moss part no GRC112SS which has the lower siphon valve for coolant recovery systems, however this cap no longer comes with a rubber top seal under the cap a relies on the spring steel disc to make the seal. PHOTO 1. A friend also bought a cap for his TR6 at Stratford upon Avon Interclub and it didn't have a top seal either. Question is will the cap with just the spring top seal and no rubber top seal be airtight for the coolant recovery system ( I doubt it). I have at the moment transferred the seal from my old cap but would have preferred a new one, can't find replacement seal only anywhere. Photo 2, found on internet shows original style cap with rubber top seal on right, but this Cap does not have the spring disc like the newer caps so it obviously needs the rubber seal.