poppyman Posted April 5, 2019 Report Share Posted April 5, 2019 Hi chaps, i have a problem on a GT6 mk3 that is reluctant to start from cold! Once started its ok for the rest of the day, even if left for 6or7 hrs. It's fitted with elec/ign, new plugs coil ballast resistor cap rotor and fuel pump....... It starts 1st time on easy start sprayed in carbs..... even priming the pump does not help..... Help... what am i missing??? Thanks. Tony. Link to comment Share on other sites More sharing options...
johny Posted April 5, 2019 Report Share Posted April 5, 2019 it sounds like the choke mechanism isnt working or is poorly adjusted. On my MK1 Vitesse you can take off the airfilter box, operate the choke and see each carb piston being lifted but your carbs might have a different set up with possibly an automatic temperature controlled choke..... Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 5, 2019 Report Share Posted April 5, 2019 i take it this is CDS even a E , single starting valve on the front caarb with tubed enrichment to the rear carb ??? with or without temeperature compensators, ?? what breather system is fitted ? pete Link to comment Share on other sites More sharing options...
poppyman Posted April 5, 2019 Author Report Share Posted April 5, 2019 41 minutes ago, Pete Lewis said: i take it this is CDS even a E , single starting valve on the front caarb with tubed enrichment to the rear carb ??? with or without temeperature compensators, ?? what breather system is fitted ? pete Hi Pete, 150CDSE with temp compensators. Tony. Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 5, 2019 Report Share Posted April 5, 2019 Make sure the litte sods are well closed when cold and closed at normal should only open when too hot They bleed air past the butterfly if open and your mixture is never correct, Do check the choke discs have clear metering holes . If the mixture is correct the delrin washer on the head of the needle should be level with the base of the air piston What air filters are you using , std or pancakes ?? Pete Link to comment Share on other sites More sharing options...
poppyman Posted April 5, 2019 Author Report Share Posted April 5, 2019 Standard Pete. Tony. Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 5, 2019 Report Share Posted April 5, 2019 Does seem lack of a rich mix when cold , Does the choke realy fully open ? Link to comment Share on other sites More sharing options...
poppyman Posted April 5, 2019 Author Report Share Posted April 5, 2019 Hi Pete, this is on a mates car, so i am going to check it tomorrow. I am not well up on the strombergs as it has been a long time, but thanks to you guys it's coming back to me now I will of course come back and let you know what happens as my mate thinks it's electrical? but my money is on the carb's. Tony. Link to comment Share on other sites More sharing options...
johny Posted April 5, 2019 Report Share Posted April 5, 2019 I think it starting ok on easy start is a bit of a pointer😁 Link to comment Share on other sites More sharing options...
poppyman Posted April 5, 2019 Author Report Share Posted April 5, 2019 1 hour ago, johny said: I think it starting ok on easy start is a bit of a pointer😁 That's what i thought johny, like i say i will let you guy's know when it's sorted Tony. Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 6, 2019 Report Share Posted April 6, 2019 Also whip the top off see if the diaphragm is correctly located in its position dimples and has no splits when stretched. If its Wrinkled wash in petrol it reverts to new size. The choke is just a disc with metering small holes in , can get blocked with corrosion just undo the screws to examine Pete Link to comment Share on other sites More sharing options...
dave.vitesse Posted April 6, 2019 Report Share Posted April 6, 2019 As Pete said the metering holes in the starter valve on the front carb do cause starting problems. They tend to get gummed up or corroded and require cleaning out every now and again. Dave Link to comment Share on other sites More sharing options...
poppyman Posted April 7, 2019 Author Report Share Posted April 7, 2019 Hi All, a big thank you for your help , pleased to say GT6 now starts first time We could not see for sure if the holes were blocked? but went around with a pin and blew them out and got a face full of sh*t..... While we were at it we slowed the choke tickover speed down as it was reving very high..... So my pal also sends his thanks as well I also know a bit more about that type of stromberg now. Tony. Link to comment Share on other sites More sharing options...
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