Checked the temp when the rad blew and it was only 140 which isn't running temp, on these old vehicles is 160. I have stripped out the assembly and cleaned and honed everything, I reassembled and screwed the ring past the 9/16 mark then applied the sealant which worked very well on the previous go and screwed the ring back up till on the 9/16. This makes the rubber seal and funnel seal that much cleaner and sealant only on the threaded part. Will give a day to get the sealant to set then give it another go.
Spring isn't the best I feel.
Paul
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