MARK Posted December 8, 2021 Report Share Posted December 8, 2021 I have just purchased stainless steel radiator return pipe with boss and thermostatic fan switch for my 73 uk TR6, part no.158417ss. However this new one is quite a different bended shape than my old one and the upper end does not seem to align correctly with the water pump housing connection. Fitting it would seem to bend the 90 deg. hose to quite a bit less than 90 deg. My old stainless one was not the best made but at least fitted but will need a repair. Were there different water pump housings and radiators that would explain my problem? Has anyone encountered this before? MARK Quote Link to post Share on other sites
iani Posted December 8, 2021 Report Share Posted December 8, 2021 44 minutes ago, MARK said: I have just purchased stainless steel radiator return pipe with boss and thermostatic fan switch for my 73 uk TR6, part no.158417ss. However this new one is quite a different bended shape than my old one and the upper end does not seem to align correctly with the water pump housing connection. Fitting it would seem to bend the 90 deg. hose to quite a bit less than 90 deg. My old stainless one was not the best made but at least fitted but will need a repair. Were there different water pump housings and radiators that would explain my problem? Has anyone encountered this before? MARK two different radiator types Mark, each with a different outlet position on the bottom, this is why there are two different stainless pipes available. Quote Link to post Share on other sites
MARK Posted December 9, 2021 Author Report Share Posted December 9, 2021 Thanks for that iani ! Looking at the earlier radiator and the later one, the angle of the lower exit stubs are different ! Hence there are two different stainless pipes, one for TR 5 and early tr6 - and one for later TR6 type radiator !!! However they both seem to have the same part number !!! . As a lot of early tr6s may have had the radiator replaced with the later radiator, so beware when ordering this part. Useful tool his Forum ! Help supplied when sitting on floor in the garage scratching ones head in bewilderment staring at bits what don't fit !!!!! Quote Link to post Share on other sites
Hamish Posted December 9, 2021 Report Share Posted December 9, 2021 11 minutes ago, MARK said: Useful tool his Forum ! Help supplied when sitting on floor in the garage scratching ones head in bewilderment staring at bits what don't fit !!!!! Been there and done that and been rescued by the forum. thanks forumites Quote Link to post Share on other sites
MARK Posted December 14, 2021 Author Report Share Posted December 14, 2021 Apparently all the main suppliers supply TWO different stainless downpipes. One for TR 5 and early TR6 because of difference in radiators. However they only seem to supply ONE stainless steel pipe with a BOSS for a thermostatic switch for all non US cars !!! Am I right about this ? Do they fit both radiator types without modification ??? MARK Quote Link to post Share on other sites
iani Posted December 14, 2021 Report Share Posted December 14, 2021 28 minutes ago, MARK said: Apparently all the main suppliers supply TWO different stainless downpipes. One for TR 5 and early TR6 because of difference in radiators. However they only seem to supply ONE stainless steel pipe with a BOSS for a thermostatic switch for all non US cars !!! Am I right about this ? Do they fit both radiator types without modification ??? MARK Have a look here Mark https://www.scparts.co.uk/sc_en/british-cars/triumph/triumph-tr5-tr250-and-tr6-1968-1976/cooling-system/radiator-tr5-250-tr6-carburettor-to-may-1975-all-tr6-p-i.html#11 Quote Link to post Share on other sites
BlueTR3A-5EKT Posted December 14, 2021 Report Share Posted December 14, 2021 1 hour ago, MARK said: Apparently all the main suppliers supply TWO different stainless downpipes. One for TR 5 and early TR6 because of difference in radiators. However they only seem to supply ONE stainless steel pipe with a BOSS for a thermostatic switch for all non US cars !!! Am I right about this ? Do they fit both radiator types without modification ??? MARK Cock up by the parts suppliers. As the person who originally wrote the Moss TR5/250/6 parts catalogue I can assure you the original printed version contains these different tubes. The one with the welded threaded boss is an aftermarket accessory but there should still be two shapes of connector tube. As stated the radiator bottom hose outlet moved position during the production of the TR6. This outlet tube movement requires a connector tube with different bends. So there are two types of tube. Quote Link to post Share on other sites
MARK Posted December 14, 2021 Author Report Share Posted December 14, 2021 Iani have looked at your link to SC Parts and they seem to be the same and only offer one pipe with the boss but two different without the boss for thermo switch, unless I am looking at the wrong bit ? MARK Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.