Tr4aJim Posted August 4, 2020 Report Share Posted August 4, 2020 (edited) Folks, I just discovered that the Pertronix distributor in my TR4A has failed (see my “Hesitation” topic). So now I’m looking for a replacement. I think I want to go to a stock distributor with points. Does anyone have a recommendation for a supplier, as I’ve read that some of the new distributors being offered are less than ideal. thanks Jim Edited August 15, 2020 by Tr4aJim Quote Link to post Share on other sites
ianc Posted August 4, 2020 Report Share Posted August 4, 2020 Martin Jay, the Distributor Doctor - see small advert on page 81 of TR Action. Ian Cornish Quote Link to post Share on other sites
Tr4aJim Posted August 4, 2020 Author Report Share Posted August 4, 2020 Thanks Ian. I didn’t realize he sold them outright. Jim Quote Link to post Share on other sites
BlueTR3A-5EKT Posted August 6, 2020 Report Share Posted August 6, 2020 Hi Jim, Your TR4A. (1964-1968) probably has a Lucas type 25D4. model 40795 - here is an used one for sale https://www.ebay.com/itm/MG-Triumph-Austin-Healey-Lucas-25-D4-Distributor-Prt-40795/293043473284?hash=item443ac08b84:g:r9sAAOSwHAxcBZ4A If you want to run your car think about using that old unit or buying a really cheap repro unit and sending off your original for restoration to Martin. Alternatively. - maybe the likes of Roadster Factory have a TR4A core - Cheers Peter W Quote Link to post Share on other sites
Tr4aJim Posted August 6, 2020 Author Report Share Posted August 6, 2020 Hello Peter, unfortunately all I have is the failed Pertronix dizzy, so no original one. BTW - I contacted the Distributor Doctor and they offered a rebuilt Lucas unit, but with shipping it was very expensive. However folks on the Triumph Experience forum recommended the outfit, British Vacuum Unit, located in New Hampshire. They also offered a rebuilt Lucas dizzy, but at a more palatable price. They also warned that many of the new reproduction units have advance curves that are incorrect. Anyway, I agreed and it’s in the mail! Jim Quote Link to post Share on other sites
BlueTR3A-5EKT Posted August 6, 2020 Report Share Posted August 6, 2020 Sounds like you are on to a winner. cheers Peter W Quote Link to post Share on other sites
Tr4aJim Posted August 15, 2020 Author Report Share Posted August 15, 2020 Folks, I just wanted to update this and say that after receiving and installing the refurbished 25D dizzy from British Vacuum Unit, the car runs GREAT! So the dying Pertronix dizzy, (broken mechanical advance), was the culprit all along. Thanks to all for the help here and in my “Hesitation” thread. BTW - not sure if you are familiar with a Triumph restoration shop here in the States called Macy’s Garage, but they have a good write up on setting up a dizzy, which I used: https://macysgarage.com/ign-timing.htm BACK ON THE ROAD!........... cheers Jim Quote Link to post Share on other sites
BlueTR3A-5EKT Posted August 15, 2020 Report Share Posted August 15, 2020 Good news. Enjoy the driving. Peter W Quote Link to post Share on other sites
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