Mark Ogram Posted June 29, 2022 Report Share Posted June 29, 2022 Hello All. Just found that my bottom fuse has blown. As we know, there are 3 x 30amp fuses on the TR6. Originally, these were Lucas fuses that were "17.5amp continuous, and 35amp blow". Are the 35amp fuses that Halfords and others sell suitable to fit ? Cheers, Mark. Quote Link to post Share on other sites
RobH Posted June 29, 2022 Report Share Posted June 29, 2022 (edited) Probably not Mark. Unless it specifically says otherwise they will be modern types which are 35 Amp continuous. If that is the case, until you can get the right ones you could use their 20A fuses as those will blow quickly at around 40A. Edited June 29, 2022 by RobH Quote Link to post Share on other sites
Mark Ogram Posted June 29, 2022 Author Report Share Posted June 29, 2022 4 minutes ago, RobH said: Probably not Mark. Unless it specifically says otherwise they will be modern types which are 35 Amp continuous. If that is the case, until you can get the right ones you could use their 20A fuses as those will blow quickly at around 40A. Thanks Rob. Problem is, the Lucas fuses are not available in the UK (from what I can see) Quote Link to post Share on other sites
michaelfinnis Posted June 29, 2022 Report Share Posted June 29, 2022 Moss and Rimmers both show fuses in their TR6 parts catalogues, described as '35 amp glass'. I presume these must be the same spec as original? Mike. Quote Link to post Share on other sites
RobH Posted June 29, 2022 Report Share Posted June 29, 2022 No they aren't Mike. Unless they specifically state that these are Lucas style fuses, they are the modern ones with approximately double the fusing current. As Mark says, all of the usual sources seem only to keep the American SFE style now. Quote Link to post Share on other sites
Red6 Posted June 29, 2022 Report Share Posted June 29, 2022 Important question #1 - Why has the fuse blown? On the drive home from buying my car I switched on the heater fan and immediately had smoke coming out the top of the dash. Eventually the bottom fuse blew and I no longer had indicators, brake lights, wipers, overdrive, temperature and fuel gauge and of course the heater. When I checked the previous garage receipts that came with the car I found the fuse had been changed a number of times. Moral of the story is find the source of the problem and fix it. In my case it was a failed heater motor and severely melted wires. I replaced the motor and melted wires and the problem was solved. I also replaced the fuse holder with a more modern 6 fuse unit. So I now have the circuits separated and run with much lower amperage fuses. Quote Link to post Share on other sites
RobH Posted June 29, 2022 Report Share Posted June 29, 2022 Good point. If the fuse wire has obviously melted then there has been an overload and the cause must be rectified. However, glass fuses can fail simply with age either through heat-cycling or with vibration, in which case the fuse wire looks intact but may have become detached at one end. Quote Link to post Share on other sites
Kevo_6 Posted June 30, 2022 Report Share Posted June 30, 2022 11 hours ago, Mark Ogram said: Hello All. Just found that my bottom fuse has blown. As we know, there are 3 x 30amp fuses on the TR6. Originally, these were Lucas fuses that were "17.5amp continuous, and 35amp blow". Are the 35amp fuses that Halfords and others sell suitable to fit ? Cheers, Mark. Are these any good Mark. Fuse Not sure on the stockist as I’ve never used them. Quote Link to post Share on other sites
Mark Ogram Posted June 30, 2022 Author Report Share Posted June 30, 2022 1 hour ago, Kevo_6 said: Are these any good Mark. Fuse Not sure on the stockist as I’ve never used them. Kev, That's great thanks. Just ordered some. Cheers, Mark. Quote Link to post Share on other sites
astontr6 Posted July 1, 2022 Report Share Posted July 1, 2022 If you go to Vehicle Wiring Products they sell the 17.5 amp 30mm glass fuse that fuses at 35 amps. they have a whole range of them Bruce. Quote Link to post Share on other sites
andyb633 Posted July 1, 2022 Report Share Posted July 1, 2022 i use Durite 32mm flat ended 17.5 amp continuous ,35 amp blow fuses Quote Link to post Share on other sites
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