Martin OD Posted May 27, 2023 Report Share Posted May 27, 2023 Hi All. I always knew my carbs needed a bit of TLC but they ran until just recently. I got some grit in my fuel system and the engine did not run so I took the carbs apart. I then realised that they were 2 different carbs (which I suspected) and they have different parts. Both are 150s. The adjustment set up on the bottom is different. See photos. the right hand one which I think is the wrong one has an aluminium body and the other one is brass body and is missing item 55 o ring and 54 washer internally.Doc5.docxDoc5.docx I presume this is an error. I definitely did not misplace them on disassembly. Does anyone have any ideas or advice? Link to comment Share on other sites More sharing options...
johny Posted May 27, 2023 Report Share Posted May 27, 2023 Yes the left is the original set up although how fuel didnt pour out because of the missing seals is a surprise. The other does have an unusual set up but it might still function perfectly. Perhaps someone turned up a replacement themselves when the original was damaged - body rounded off, thread stripped? Link to comment Share on other sites More sharing options...
Martin OD Posted May 27, 2023 Author Report Share Posted May 27, 2023 (edited) It has always been a thirsty car!. Now I know why! The washer is an aluminium washer. It is a shim or can I get any old washer? The butterfly screws are different as well and so I suspect it did come from a different unit. Edited May 27, 2023 by Martin OD Link to comment Share on other sites More sharing options...
johny Posted May 27, 2023 Report Share Posted May 27, 2023 When you look in the workshop manual it seems to show both types of jet holders although of course no mention of whether theyre brass or aluminium. Either way Im sure the internals should be the same and both the washer and o ring are needed however as the jet height (mixture) is manually adjustable the exact washer shouldnt be critical... Link to comment Share on other sites More sharing options...
Pete Lewis Posted May 28, 2023 Report Share Posted May 28, 2023 the make up of the jet holder is of little consequence the upper alloy washer is made so it self seals when nipped up the jet and the holder 0 rings are important to solve leakage the height of the jet and the position of the air pistons needle is all thet controlls the mixture any variation in the holders makes no effect Pete Link to comment Share on other sites More sharing options...
68vitesse Posted May 28, 2023 Report Share Posted May 28, 2023 (edited) When I first got my Vitesse the carbs had different weights on the pistons, perhaps something to check?. Regards Paul Edited May 28, 2023 by 68vitesse Link to comment Share on other sites More sharing options...
Pete Lewis Posted May 28, 2023 Report Share Posted May 28, 2023 (edited) yes 1600 has heavy damper weight ring and no spring 2ltr has lighter ones + spring think 13/60 has heavy eight and no spring Pete Edited May 28, 2023 by Pete Lewis Link to comment Share on other sites More sharing options...
johny Posted May 28, 2023 Report Share Posted May 28, 2023 1 hour ago, Pete Lewis said: the make up of the jet holder is of little consequence the upper alloy washer is made so it self seals when nipped up the jet and the holder 0 rings are important to solve leakage the height of the jet and the position of the air pistons needle is all thet controlls the mixture any variation in the holders makes no effect Pete Good, looks like alloy washers available on ebay if genuine items not available although of course most are metric... Link to comment Share on other sites More sharing options...
Ian Foster Posted May 28, 2023 Report Share Posted May 28, 2023 Martin There is an article by by Chris Witor (IIRC) that describes the usage and development of the Stromberg 150 carb on the T2000 range and I think he said that the aluminium bushing for the jet is an early arrangement, replaced by brass. The carbs in your photo have the early choke arrangement, so I am thinking your car just be a Mk1. Ian Link to comment Share on other sites More sharing options...
johny Posted May 28, 2023 Report Share Posted May 28, 2023 Think these are fitted to mk1 Vitesse and unlikely to both be the originals although with Triumph you never know😁 As I say the vit/gt6 manual seems to show both types... Link to comment Share on other sites More sharing options...
Martin OD Posted June 6, 2023 Author Report Share Posted June 6, 2023 On 28/05/2023 at 09:56, 68vitesse said: When I first got my Vitesse the carbs had different weights on the pistons, perhaps something to check?. Regards Paul Hi. As I have 2 different carbs should they still have the same weights. The diaphragm holder, butterfly and jet holders are all different to each other as is the height of the jets. I feel as though I almost have to treat the engine as 2, 3 cylinder engines but bolted together and tune each carb separately. Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 6, 2023 Report Share Posted June 6, 2023 the damper weights must be the same the needles must be pairs of the same , springs or no springs depending on the spec must all be the same the jet holder and jet height should be the same providing the jets are both the save diameter )both should be 0.9" if the heights are different suspect wrong jet diameter Pete Link to comment Share on other sites More sharing options...
Martin OD Posted June 6, 2023 Author Report Share Posted June 6, 2023 (edited) Thanks. I will investigate further. They both have springs. Edited June 6, 2023 by Martin OD more info Link to comment Share on other sites More sharing options...
Ian Foster Posted June 7, 2023 Report Share Posted June 7, 2023 15 hours ago, Pete Lewis said: should be 0.9" Or 0.090" perhaps! Ian Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 7, 2023 Report Share Posted June 7, 2023 well i have been in hozpitalz typing is never a strong point ha 0.9 a bit rich Link to comment Share on other sites More sharing options...
Ian Foster Posted June 7, 2023 Report Share Posted June 7, 2023 1 hour ago, Pete Lewis said: hozpitalz According to most people these days (particularly on the BBC it seems) it is pronounced hospi-tool! Winds I right up! Ian Link to comment Share on other sites More sharing options...
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