peterc Posted July 16 Report Share Posted July 16 Hi, I'm attempting to get my Vitesse to tick over nicely. One of the issues I need to address is that the spindles of my CDS carbs are badly worn and are very loose in the bodies, hence are sucking in air. I have rebuild kits from Burlen and am now waiting for new spindles to arrive but fear the spindle holes in the bodies are worn too. With the kits come brass spindle bushes with rubber inserts (as shown) Burlen tell me the bodies need to be line bored to accept these bushes, but that can't be right. The spindle bosses in the bodies are too small to accept these bushes. As others have noted elsewhere on this forum technical expertise is not Burlen's strong suit. Has anyone here overcome this issue? Maybe the bushes fit on the shaft externally to seal leaks? Has anyone found suitable replacement bushes to fit into the rebored bodies, like are available for SU carb bodies? Has anyone tried line boring and fitting 8mm shafts to CDS bodies? Thanks peterc Link to comment Share on other sites More sharing options...
johny Posted July 16 Report Share Posted July 16 The bodies should be harder than the spindles so only become very worn after many miles and various replacement spindles. They look like seals not bushes... Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 16 Report Share Posted July 16 have used the carburettor exchange in leighton buzzard to line bore and bush worn bodies some later strombergs had replaceable seals fitted dont know when they were introduced its a look see job . make sure the temperature compensators on the side are fully closed ( turn the small nut to close the plunger fully )and the 0 rings (two on each ) are seating well set the needles so the small delrin washer is just level with the base of the air piston thats the good start factory set start point . agree with jonny most wear the shaft not the bore Pete Link to comment Share on other sites More sharing options...
johny Posted July 16 Report Share Posted July 16 As Ive said before additional springs fitted to the throttles can increase wear rate of the spindles... Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 16 Report Share Posted July 16 and to ,,,,,,,,,,add a squirt from an oil can on anything that moves can work wonders Pete Link to comment Share on other sites More sharing options...
Ian Foster Posted July 16 Report Share Posted July 16 I have 175 CD2s on my Mk2 GT6 and these have a steel bush which carries the spindle and the outer part of the bush forms a cup into which the brass seals fit. I didn't think any of the 150 Stroms had bushes or sleeves, but possibly they were introduced on later developments of the carbs. It is possible that you have been sent the wrong rebuild kit! Ian Link to comment Share on other sites More sharing options...
Josef Posted July 16 Report Share Posted July 16 I’ve just today rebuilt my GT6 Mk 2 150CDS carbs. The kit from Burlen did not contain seals like you show, and the carbs did not have a place for them. I had to have them rebushed due to spindle wear. Was just under £100 delivered back to me from Exeter Engineering. Link to comment Share on other sites More sharing options...
Nigel Clark Posted July 16 Report Share Posted July 16 I don't know if this holds for Strombergs but with SUs, new spindles seem to be a couple of thou oversize, which takes up any wear in the carb bodies nicely. Nigel Link to comment Share on other sites More sharing options...
johny Posted July 16 Report Share Posted July 16 Those seals are definitely offered by some suppliers for cd150 carbs. I would have thought oversize spindles would still require line reaming of the holes unless your very lucky... Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 17 Report Share Posted July 17 never tried but with care an expanding reamer will follow the line or make a jig to support and care with a good bench drill but any misalignment and daylight you wont control the idle . you could possibly make a bush from a peice of nylon air brake pipe just some thoughts Pete Link to comment Share on other sites More sharing options...
johny Posted July 17 Report Share Posted July 17 19 hours ago, peterc said: Hi, I'm attempting to get my Vitesse to tick over nicely. One of the issues I need to address is that the spindles of my CDS carbs are badly worn and are very loose in the bodies, hence are sucking in air. I have rebuild kits from Burlen and am now waiting for new spindles to arrive but fear the spindle holes in the bodies are worn too. With the kits come brass spindle bushes with rubber inserts (as shown) Burlen tell me the bodies need to be line bored to accept these bushes, but that can't be right. The spindle bosses in the bodies are too small to accept these bushes. As others have noted elsewhere on this forum technical expertise is not Burlen's strong suit. Has anyone here overcome this issue? Maybe the bushes fit on the shaft externally to seal leaks? Has anyone found suitable replacement bushes to fit into the rebored bodies, like are available for SU carb bodies? Has anyone tried line boring and fitting 8mm shafts to CDS bodies? Thanks peterc Heres the bushes and those seals from James Paddock... Link to comment Share on other sites More sharing options...
Colin Lindsay Posted July 17 Report Share Posted July 17 That's the sort of thing I remembered; the carb bodies require drilling out and the spindle bushes reseated (am I right that there are phosphor bronze versions?). From the diameter that seal looks like it must go on the inside? I've never tried it but unless I was really confident on the day I'd get the professionals to do it. Link to comment Share on other sites More sharing options...
johny Posted July 17 Report Share Posted July 17 I wonder if the seal is supposed to be used with the bush as it looks to have a good exterior sealing face... Link to comment Share on other sites More sharing options...
WWT338J Posted July 23 Report Share Posted July 23 Do these pics help? The spindle seals will prise out. Apologies for the rather grubby CD150's. David Link to comment Share on other sites More sharing options...
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