I.Mupferit Posted August 19, 2008 Share Posted August 19, 2008 Ever since building my SV just over 3 years ago, I have had a very, very, very noisy LSD and more vibration from the driveline area than I felt was acceptable, even for a car like the 7. So while my diff was out for a rebuild by Phil at Road & Race ( for great service btw), I sent the propshaft off to the Propshaft Clinic in Bradford to have it checked out. They have just called to say that the UJ's are absolutely fine, but the propshaft was waaaaaaaay out of balance to the point where they had to remove the weight that had been added to one side during manufacture and put a small weight on the opposite side. Also, he has had to add weight on one side at the opposite end as that was out by a greater margin than he felt was acceptable. His opinion was that at speed it must have made the experience quite unpleasant as I would certainly have felt it - which I did. Interestingly though, he told me they have seen an awful lot of original 7 propshafts that were way out of balance to what he considers acceptable. So my reason for posting this is to suggest that if you feel you have a lot of drivetrain vibration, there is every chance it can be cured by the simple expedient of having the propshaft balanced. It does mean a diff out job on the De Dion cars but still quite easy to do and could improve the driving experience still more. to the Propshaft Clinic. I have used them before and always recommend them when I supply my 4 to 5 sp gearbox conversions. Their work is very good. Edited by - Brent Chiswick on 20 Aug 2008 12:46:29 Link to comment Share on other sites More sharing options...
Anthony Posted August 19, 2008 Share Posted August 19, 2008 Thanks Brent, good call. Suspect I may have changed mine prematurely... Link to comment Share on other sites More sharing options...
Bricol Posted August 19, 2008 Share Posted August 19, 2008 Second for the Proshaft Clinic. Local to me (even tho they've moved three times) - always a good job at a good price. And willing to sell tube and offer advice for rather special prop that they didn't really want to touch (hookes joint one end, and a CV joint the other - to drive a live axle from one side of a welded up diff in a longitudinaly mounted, FWD transverse unit) for use to be able to make a successful unit. Willing to save money by modifying an exisiting shaft rather than selling you a complete new one. Bri Link to comment Share on other sites More sharing options...
RiF Posted August 19, 2008 Share Posted August 19, 2008 Hi Brent, what do they charge for balancing? RiF Driving one of the first Duratec 7, and building CA07BON for Henrietta 😬 😬 😬.for pictures of 7 and carbon andCA07BON Link to comment Share on other sites More sharing options...
dannylt Posted August 19, 2008 Share Posted August 19, 2008 Interesting. I've already replaced one for safety reasons, and I kind of assumed a new one would be perfect! Link to comment Share on other sites More sharing options...
F355GTS Posted August 19, 2008 Share Posted August 19, 2008 Must admit I've never been happy with mine since it was replaced a couple of Years ago, another job to add to the Winter list *thumbup* Mark Link to comment Share on other sites More sharing options...
Tonycaterham Posted August 19, 2008 Share Posted August 19, 2008 Third for Propshaft Clinic. I used then to shorten my prop when I upgraded by last live axle 7 to a Ford rear axle. Tony L7 EVL Link to comment Share on other sites More sharing options...
I.Mupferit Posted August 19, 2008 Author Share Posted August 19, 2008 Richard, I'm not certain how much yet as I just wanted them to go ahead and........................I didn't ask! 😳 Anyhow, given that they only charge something like £60 to shorten the prop, renew the UJ's, balance the shaft and repaint, I can't see it costing too much. I should have the invoice when I receive the prop back tomorrow so will let you know then. Danny, I too assumed a new one would be perfect but it just shows you can't take anything for granted. I'll let you know how much difference it makes after refitting next weekend. My prop had a piece of sheet steel approx 70mm x 50mm rolled and welded to one end of the tube, which was intended to balance it out but they had to completely remove that and then fit a slightly smaller one on the opposite side. No wonder it was vibrating although I did wonder why Mrs C preferred this car to the old one! Link to comment Share on other sites More sharing options...
Area Representative Golf Juliet Tango Posted August 19, 2008 Area Representative Share Posted August 19, 2008 Interesting post Brent. I suppose you have to drive several cars to find out the difference. I have only driven one Crossflow/live axle and one K/deDion combination so might not be able to judge what might be termed "excessive". However, I am sure that testing and balancing is Richard, I'm not certain how much yet as I just wanted them to go ahead and...I didn't ask! I hope you won't get shafted! Democratic dissent is not disloyalty, it is a positive civic duty. Edited by - Golf Juliet Tango on 19 Aug 2008 16:43:08 Link to comment Share on other sites More sharing options...
RiF Posted August 19, 2008 Share Posted August 19, 2008 Should all go with carbon props beautifully balanced already 😬 RiF Driving one of the first Duratec 7, and building CA07BON for Henrietta 😬 😬 😬.for pictures of 7 and carbon andCA07BON Link to comment Share on other sites More sharing options...
I.Mupferit Posted August 19, 2008 Author Share Posted August 19, 2008 Were I keeping the car, that might have been an option Richard but alas................ Link to comment Share on other sites More sharing options...
captain chaos Posted August 20, 2008 Share Posted August 20, 2008 Brent is spot on about the std of balancing...I always get the UJ's replaced and re-balanced whenever the diff or gearbox comes out.... RiF...I take it the 800 quid includes someone coming down from scotland to fit it for you 😬 Link to comment Share on other sites More sharing options...
Guy Lowe Posted August 20, 2008 Share Posted August 20, 2008 For the propshaft clinic. I had mine lengthened by 45mm (complete new tube), inspected and balanced. It cost £45.00 + £9.00 carriage and vat, but that was in January 07! I have to say that there was a vibration prior to the work being carried out, but I had put this down to it being the wrong propshaft and being to short Guy S B Lowe o *arrowup*o ZETEC Conversion here Link to comment Share on other sites More sharing options...
I.Mupferit Posted August 20, 2008 Author Share Posted August 20, 2008 Just received my propshaft back, together with the invoice. Price is a very reasonable £25 for checking it over, dynamically balancing and repainting + £10 p&p. If it cures the vibration I was experiencing then that's £35 well spent I think. I can now let the car go to its new owner with peace of mind knowing there are no problems. Link to comment Share on other sites More sharing options...
RiF Posted August 20, 2008 Share Posted August 20, 2008 Thanks Brent. Painted as well Pretty reasonable price. Do let me know if you can notice the difference Captain, 😬 what come to the bright lights RiF Driving one of the first Duratec 7, and building CA07BON for Henrietta 😬 😬 😬.for pictures of 7 and carbon andCA07BON Link to comment Share on other sites More sharing options...
Graham Perry Posted August 20, 2008 Share Posted August 20, 2008 Thats an amazing price Link to comment Share on other sites More sharing options...
moosetestbestanden Posted August 20, 2008 Share Posted August 20, 2008 Should all go with carbon props beautifully balanced already I was just going to ask that question. Thanks ------- Chris Ad majorem 7 gloriam Link to comment Share on other sites More sharing options...
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