Horacehoare Posted September 13, 2021 Report Share Posted September 13, 2021 Afternoon all, My 64 TR4 has recently developed a fault which I'm struggling to find. From cold, on full choke she'll start no problem but then after 10 seconds or so she drops onto two cylinders, with the front two going AWOL. That being the case I've been concentrating my efforts on the front carb (Stromberg) The carbs were rebuilt including new diaphragms on completion of the restoration so should be ok but I'm stuggling to find a fault. Any help would be very much appreciated. Cheers Phill Hoare Quote Link to post Share on other sites
Motorsport Mickey Posted September 13, 2021 Report Share Posted September 13, 2021 (edited) Oil in the dash pots of the carbs ? Check the diaphragm fitment ( of both) and make sure no splits, spark plug condition front 2 v rear 2 ? Mick Richards Edited September 13, 2021 by Motorsport Mickey Quote Link to post Share on other sites
Lebro Posted September 13, 2021 Report Share Posted September 13, 2021 Stuck needle valve in the float chamber. mine used to do this very occasionaly, a sharp tap with the "T" key always sorted it. (TR4 owners may have to use a small spanner etc) Bob. Quote Link to post Share on other sites
ctc77965o Posted September 13, 2021 Report Share Posted September 13, 2021 Bad manifold gasket? Quote Link to post Share on other sites
MikeF Posted September 14, 2021 Report Share Posted September 14, 2021 Always worth checking the points Mike Quote Link to post Share on other sites
Horacehoare Posted September 16, 2021 Author Report Share Posted September 16, 2021 Thanks very much for your responses guys, especially Lebro as the needle valve turned out to be the problem, now back up and running. Cheers Phill Quote Link to post Share on other sites
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