Info needed: Morris C8 radiator

[Richard Farrant]

Originally Posted by pauldavies

Guys there lies the conundrum "no thermostat", don't use them here in QLD but maybe I will need to find one! I purchased some bronze today and will make a new filler tube and castelation ring on Wednesday, I am borrowing a friends lathe to do the job. The spring I am sending to a company in Brisbane to make a stainless replacement as no-one does bronze springs anymore, I haven't overfilled with coolant as from your early advise Richard I just touched the core and at least 4 litres of coolant blows out so it is excessive and that is with stopping straight away. It is interesting that it blows as the temp gets to running temperature so the thermo theory could be correct. Any idea on spring tension?
Regards
Paul

Hi Paul,
The brass ring should have a rubber sealing ring bonded to the lower side, is this missing on yours? Remember this does not seal the radiator cap, it only seals off the air gap above coolant in the header tank when you remove the cap to check the level, so you do not overfill.
Another thing that gets overlooked is the fan belt, is it gripping and adjusted correctly. Some British vehicles used belts of a different V angle to the standard A, B and C varieties. You may have to compromise, but worth checking as belt may be slipping at times.