David,
Hopefully it is just something dumb. One time I put a set of SU's on a
car and it idled fine but would not accelerate very well. Found it was
the the linkage between the carbs was not tight. It would open one
throttle but not the other. One trick to find vacume leaks is to use a
unlit propane torch to go over the areas in question. When you come
across a leak the engine will speed up a little
Mike Thompson
59 Triumph TR3A
71 Land Rover S2A
76 MG Midget
> I am new to the List and am eager to check out its power. I am
> rebuilding a 1965 Sprite MK III with a 1098cc engine. I have just put
> two new SU carbs on the car. After replacing the coil, the car starts
> fine. It idles fine. The problem is it will not throttle up. As I
> say, the carbs. are new. The needles are centered. The piston moves
> easily. The proper oil is in the dashpots. The butterflies operate
> properly. The choke operates properly. Pushing the gas pedal or
> pulling the linkage by hand makes no difference in rpms. I have
> checked for manifold leaks, gasket leaks, etc. I am really at a loss
> as to why the car will not throttle up. These cars are fun to work on,
> but they are more fun to drive. I would appreciate some advice from
> you folks who know more about this than me. Let the power of the list
> begin.......
>
> Thanks,
>
> David
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