Foggers Posted September 4, 2014 Report Share Posted September 4, 2014 Hello All. An empty forum!! Excellent, that means I can ask dumb questions without being pointed to he archive. Though I might well be pointed to other places. Anyway, excuse the ignorance. We have late 1500 Spitfire (79) with very worn waxstat HS4 carbs. I want to rebuild these, and at the same time convert to standard jets. Can anyone identify the most economical source and part numbers for doing this? Rimmers do a rebuild kit and a conversion kit, but that works out V expensive. I think what I need is: Standard jet rebuild kit Standard jet bearings New needles (What is standard?) Choke-jet lifter link Choke-jet lifter crank Is anything else needed to do this conversion/rebuild? Should I aim to re-bush for the new throttle spindles? As I understand it, the HS4 spindles run straight in the body, but bushes can be fitted. Where can these bushes be obtained? I've seen an American source, but cannot find the size referenced from a UK supplier. Any other hints and tips? I know there is plenty of documentation available on SU carbs, but I have had difficulty identifying what applies generally, and what is specific to particular carb variants. e.g. the link arms and levers for the choke. Likewise, there appear to be 3 different jet bearings, but I haven't been able to identify the differences between them. Many thanks in anticipation. I hope that this form becomes a tight source for information. It appears that this is a good opportunity to collate the mountains of wisdom and experience. Cheers Foggers Link to comment Share on other sites More sharing options...
Darren Groves Posted September 5, 2014 Report Share Posted September 5, 2014 I generally use Gower & Lee for SU Parts, helpful & knowledgably guys and price and service seem very good. I have used Burlen Ltd before and is I think the biggest supplier for SU Parts. You don't necessarily need to have the carb bodies bushed, often new spindles will be enough. Andrew Turner or Carburettor Exchange should be able to help if you do. Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 5, 2014 Report Share Posted September 5, 2014 for some good photo of what to do have a browse at.. never mind the TR spec the principles are all the same be it SU or Stromb's. http://www.buckeyetriumphs.org/technical/technical.htm there are many rebuild documents as Darren says look at the Burlen site , Ive used the Carb exchange small and less overheads, and its local to me. most carb stuff is now getting expensive Link to comment Share on other sites More sharing options...
Foggers Posted September 7, 2014 Author Report Share Posted September 7, 2014 Thanks Darren/Pete. That's useful info There'll be lots more questions from me. I haven't worked on a Spitfire since the 70's, and those braincells are long gone!! Cheers Foggers Link to comment Share on other sites More sharing options...
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