dcz1643

Hi Peter, thanks for posting.... The choke is physically sticking but as you say, my assumption that it is the cable could be incorrect, it could be the actual carbs sticking. I will look into this when I take the carbs off. Regarding the idle speed, I can sometimes get it to slow down by pulling down on the accelerator cable but it doesn't always work but again you have given me some things to look into. I am doing the 2019 France RBRR next year, so I will fit a heat-shield, I think it would be prudent. When the weather turns (still enjoying blasting down the country lanes with the roof down), I will strip everything down, so your comments are very helpful . Cheers....Derek

Hi Stephen, I don't think my engine suffers when hot but I do have an issue with setting the idle speed. Sometimes when it is warmed up, the engine will idle at over 1000 revs, when it is set around the 750 mark. That is one of the reasons to completely strip and service the carbs, as well as changing the throttle cable and perhaps change the linkage bushes. The choke also sometimes gets stuck and I need to lift the bonnet to manually take it off. Therefore I will also replace the choke cable. I think I will add a heat shield, as what I am trying to achieve is a troublesome free set of carbs. I am also considering putting twin K&N filters on, I assume this will help with my objective. Thanks for your reply....Derek

Hi All.... I intend to service/re-build my twin SU's over the winter, on my 1974 1300 Spit, as they sometimes stick. I have been considering adding a stainless steel heat shield whilst I have the carbs off. My question is, does a heat shield bring any mechanical benefit to the car, or is it just cosmetic. Cheers...Derek

Here is my 1974 Spitfire 1300. Exterior is good but interior is tatty. I have bought new carpets, a new steering wheel and I am ordering new seat foam and covers, along with new door cards etc. So the interior will soon be as good as the exterior. I am in the process of signing up to the 2019 France RBRR, so I am looking forward to that particular challenge.