MarkSeymour Posted April 29, 2016 Report Share Posted April 29, 2016 Have recently purchased a TR6 and have taken it out a few times and it always struggles to start from cold Now Ive not used the car for 2 weeks, its garaged but won't start Ignition key in , I can hear the petrol pump from behind me , battery is fine, it turns over but won't fire Im in Burnham / Maidenhead Not sure what to do.. any help would be greatly appreciated Many thanks Mark Quote Link to post Share on other sites
grumpy2 Posted April 29, 2016 Report Share Posted April 29, 2016 Mine takes quite a bit of cranking before it fires if it's been standing more than a couple of days. I put it down to the injectors leaking back and having to crank the metering unit to send fuel back to the injectors. I find using a slight touch on the accelerator pedal helps a little. If you're really struggling try a squirt of easy start into the plenum before cranking. Use sparingly and only to check the car actually runs ok once started. Gary Quote Link to post Share on other sites
rvwp Posted April 29, 2016 Report Share Posted April 29, 2016 Hi Mark, Suggest that you also go back to basics and check out that you have a spark! I broke down on the road last week, my immediate thoughts were fuel pump even though I could hear it. As I was in a dangerous road position called out the AA, (20 minutes, great response). Turned out to be the insulation on a wire inside the distributor had rubbed through and was shorting out. Embarassing! My 6 was always difficult to start after a few weeks, but a new set of injection leads/Injectors solved the problem and it starts very easily, even after a few months. Best of luck Rich Quote Link to post Share on other sites
Stevecross Posted April 29, 2016 Report Share Posted April 29, 2016 Mark Try turning ignition on and listen to pump for about a minute then turn engine over about 6-10 times. If it does not start turn over again for a similar amount of turns and again and again until it starts, leaving a few seconds between cranking efforts but if no joy after say six or seven efforts start to look elsewhere for the problem Sometimes if your pi system is not fully "on song" it can take a while for the system to bleed/pressurise if it has been standing a while. Steve Quote Link to post Share on other sites
stuart Posted April 29, 2016 Report Share Posted April 29, 2016 Make sure the choke cable is actually pulling the enrichment lever on the metering unit fully for a start and see if you have a spark. Fuel+Spark=Bang. Stuart. Quote Link to post Share on other sites
DaveN Posted April 29, 2016 Report Share Posted April 29, 2016 Mark I agree go back to basics and check you have spark. I have just gone down that route. Car was running rough exaggerated by the Phoenix twin box exhaust, it sounded like two three cylinder engines wanting a divorce! Plus it was choking up when hot until it decided to die on that big roundabout at Langley! Turned out to be the cheap nasty rotor arm (not fitted by me!) Pop over Moss and get a red rotor arm and a new dizzy cap and a new set of plugs. If you've still got points I would also get a set of points and a new condenser. Quote Link to post Share on other sites
Bill Bourne Posted April 29, 2016 Report Share Posted April 29, 2016 Have recently purchased a TR6 and have taken it out a few times and it always struggles to start from cold Now Ive not used the car for 2 weeks, its garaged but won't start Ignition key in , I can hear the petrol pump from behind me , battery is fine, it turns over but won't fire Im in Burnham / Maidenhead Not sure what to do.. any help would be greatly appreciated Many thanks Mark Hi Mark I've sent you a PM Best Bill Quote Link to post Share on other sites
astontr6 Posted April 29, 2016 Report Share Posted April 29, 2016 Mark, If Bill has made this offer, carry on with him. I live in north Burnham and have owned my car from new and do all my own mechanics/electrics, if you want me to come round and check your car out. I am quite prepared to do that. Tel: 01628 667259. Bruce. Quote Link to post Share on other sites
DaveN Posted April 29, 2016 Report Share Posted April 29, 2016 What a community plenty of help around and all within a couple of miles radius! Quote Link to post Share on other sites
Razza Posted April 29, 2016 Report Share Posted April 29, 2016 Try checking the condition of the distributor cap contacts and the rotor arm I had a similar problem and cleaning everything up helped considerably Razza Quote Link to post Share on other sites
TR5tar Posted April 30, 2016 Report Share Posted April 30, 2016 What a community plenty of help around and all within a couple of miles radius! +1. True spirit of the club. Quote Link to post Share on other sites
astontr6 Posted May 5, 2016 Report Share Posted May 5, 2016 Hi All! 3 local TR owners, including myself have fixed the problem and Mark is now a happy camper! Started off with a broken rotor arm etc? Bruce. Quote Link to post Share on other sites
MarkSeymour Posted May 5, 2016 Author Report Share Posted May 5, 2016 A big Thank you to Bruce, Bill and Dave who helped sort to the mysterious electrical fault. A first time the road has seen so many TR6's Quote Link to post Share on other sites
peejay4A Posted May 5, 2016 Report Share Posted May 5, 2016 What was the problem Mark? Quote Link to post Share on other sites
Bill Bourne Posted May 5, 2016 Report Share Posted May 5, 2016 It turned out to be several things 1st the rotor arm was broken. Thought that the Pertonix ignition had been damaged and the dizzie cap Then fitted the spare points - given to Mark by the previous owner - they turned out to be naff. Fitted new dizzie cap, coils, leads and all sorts. In the end after lots of head scratching, David had the right notion to try the Pertonix again, but this time the round sensor spacer, that part sits on the distributor shaft was put to it's rightful place and aligned with a little white dot and the end of the new rotor arm. Bingo... Well done Dave. we all missed the little white dot and this could/must have moved when the original rotor arm broke up. Mysteries.. Quote Link to post Share on other sites
DaveN Posted May 5, 2016 Report Share Posted May 5, 2016 Glad to have been of assistance, and got to meet some fellow 6 pot owners! Quote Link to post Share on other sites
JohnG Posted May 5, 2016 Report Share Posted May 5, 2016 (edited) Gents Hope Mark doesn't mind, I have copied his photo to help illustrate my question. What's with the additional hoses attached to the air valve? I can see that hoses go to the back and front of the bank of inlet venturi, but, where is the air valve mounted and why the modification? Edited May 5, 2016 by wjgco Quote Link to post Share on other sites
DaveN Posted May 5, 2016 Report Share Posted May 5, 2016 Yes well! We we looking at that and can only think some PO had tried to get the idle air even to both sides of the TB's. Probably thought it a good idea and in theory possibly is! How effective though is a mute point The air valve itself as you can make out is just fitted to a short length of hose to a spigot on the air box. Quote Link to post Share on other sites
MarkSeymour Posted May 6, 2016 Author Report Share Posted May 6, 2016 It was a mod carried out by the previous owner and Dave is correct in that the theory is to distribute air evenly to both sides Quote Link to post Share on other sites
ptjs1 Posted May 6, 2016 Report Share Posted May 6, 2016 (edited) Wasn't that also a mod carried out by Mark Treadwell and referenced in Roger Williams book? I was thinking of doing something similar when I eventually get around to that part of my restoration. Paul Edited May 6, 2016 by ptjs1 Quote Link to post Share on other sites
Dom H Posted March 4, 2020 Report Share Posted March 4, 2020 Hi all, My cousin drove over his tr6 from Germany and it has been sat in the garage for a couple of months. It won’t start. I have changed the battery and initially thought it was the fuel pump that was broken as it was making a slight whine. It just doesn’t quite start - as if no fuel is getting to the engine. My cousin tells me he recently fitted a new fuel pump so it can’t be that. Any advice or help would be much appreciated. I’m in Oxford Boars Hill OX1. Quote Link to post Share on other sites
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