chrishawley Posted April 16, 2022 Report Share Posted April 16, 2022 Spit 1500, late, with viscous coupling for fan. Time to replace the VC. But prices for the orignial UKC3532 unit seem a bit on the high side from 'big' suppliers. Would anyone happen to know whether there are any substitutions from other vehicles which are a direct fit and possibly cheaper? Possibly not, but worth an ask! Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 16, 2022 Report Share Posted April 16, 2022 used a tkc101 on the 2000 £86 as a substitute sorry not looked at 1500 fittment Pete Link to comment Share on other sites More sharing options...
NonMember Posted April 16, 2022 Report Share Posted April 16, 2022 Last time I had a viscous coupling fail, I converted to electric fan. It was a lot cheaper. Link to comment Share on other sites More sharing options...
Colin Lindsay Posted April 16, 2022 Report Share Posted April 16, 2022 Might be cheaper to bin the VC and just go with the static setup. They're used by TR7 plus Landrover and other vehicles of the period, but I'm not sure if they're a similar model that would fit, or a wildely different fitting. Link to comment Share on other sites More sharing options...
Michael 81x Posted July 2, 2022 Report Share Posted July 2, 2022 I am having difficulty fitting the Viscous coupling on to the water pump of my late Spitfire 1500. The tolerance ring does not want to crush when I try to fit the coupling. The old coupling came off will little pressure applied. Does it need a press to get it on. Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 2, 2022 Report Share Posted July 2, 2022 it may not need the tolerance ring when i fitted a replacement to the 2000 i found it was not needed was just a nice light press fit ,no way would the tol ring work if that helps it needs to be a nice sized fit , not a rattling good fit Pete Link to comment Share on other sites More sharing options...
chrishawley Posted July 3, 2022 Author Report Share Posted July 3, 2022 14 hours ago, Michael 81x said: Does it need a press to get it on? Imagine maybe you've got this sorted by now. In case not: Yes, light to remove, firmer to replace is correct. To replace does need light pressing, not by hand alone. Doesn't/shouldn't need a hydlauic press as such but a bench vice should do it. But , as ever, if using a vice as a low power press, careful attention that force is applied squarely and to the appropriate faces of the work. Link to comment Share on other sites More sharing options...
chrishawley Posted July 8, 2022 Author Report Share Posted July 8, 2022 End of my particular part of the story is: Fitted new coupling. From the before and after is was then visibly evident how little fan rotation was being supplied by the old unit. Misfiring, which was the main issue in the first place, now resolved. And no creep on the temperature gauge. Learning point: Temperature gauges may not inform much about absolute temperatures but any change over time is probably significant. 1 Link to comment Share on other sites More sharing options...
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