vitesse driver Posted July 1, 2018 Report Share Posted July 1, 2018 Our Mk2 Vitesse is driving us mad. Following starting and running problems (backfiring and very lumpy) we had a mechanic look at it. We picked it up and it was running smoothly for about 5 miles until it suddenly became lumpy, lost power and wouldn’t start. New distributor, points, plugs and sparking ok. Fuel pump working and fuel getting to the carbs (although may be not evenly)? Please help!!! Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 1, 2018 Report Share Posted July 1, 2018 has all the hall marks of rubber slivers floating about in the supply to the carbs blocking the float jet when fuel is in demand frequenlt happens after messing about with the fuel hoses back fires can be condenser related , as can manifold air leaks Pete Link to comment Share on other sites More sharing options...
vitesse driver Posted July 1, 2018 Author Report Share Posted July 1, 2018 I have checked that fuel is flowing to both carbs when pumped. The second carb is definitely dry though. Can the float chamber/jets be accessed without taking the carbs off the car? Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 1, 2018 Report Share Posted July 1, 2018 no easily you cant see what your doing with the float and jet whilst on car unless you have 50 50 sight and are a contortionist you have 6 scres to undo and then remove the foat from its clips and get a socket on the valve ....not a easy job, best pop them off and remove float chamber on a bench , remove the float jet and behind it will be a likely culprit. always pump a little fuel into a jar to flush them out of the supply line before refitting, the feed hole in the float needel is very small does not take much to block it up these always occur following twiddling, you push the hose onto a sharp metal pipe and it slices a small sliver of inside after the filters can be a plague they breed like rabbits Pete Link to comment Share on other sites More sharing options...
vitesse driver Posted July 1, 2018 Author Report Share Posted July 1, 2018 Thanks for the advice. I’ll bite the bullet and take the carbs off. Thanks for the tips. I might replace the fuel lines too while I’m at it. Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 1, 2018 Report Share Posted July 1, 2018 Read the post about some makes of hose the link to another forum concerns makes alarming reading Gates seems to be a win win Pete Link to comment Share on other sites More sharing options...
vitesse driver Posted July 1, 2018 Author Report Share Posted July 1, 2018 Indeed. One if the reasons I’ve been reluctant to change them. Link to comment Share on other sites More sharing options...
daverclasper Posted July 5, 2018 Report Share Posted July 5, 2018 I smooth any bur/sharpness of the end of metal pipe, put a small smear of vaseline on it, try to keep rubber hose as straight as pos to metal pipe when I connect up. Not had this problem so far. Dave Link to comment Share on other sites More sharing options...
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