[Healeys] No acceleration

[Oudesluys]

Sounds like a weak mixture.
What happens if you lift the pistons of the SU's about 1mm while running 
stationary?
What oil do you use in the dash pots? Should be ATF or 3in1, not 20W50.
Any leaks in the vacuumlines/manifold?
Kees Oudesluijs
NL


Paul Leeks schreef:
> Chaps
>
> I cannot seem to get the engine of my 100/6 BN4 running at all well.
> About six months ago, whilst thrashing the old thing along the motorway, I
> managed to blow a large hole in piston #5.
> This was undoubtedly caused by detonation (the timing was along way out!).
> Since then I have rebuilt the engine with new pistons and exhaust valves.
> On start up everything fired up fine first time and the engine turns over
> nice and smooth at idle.
> However, although the car will cruise nicely up to 3,000 rpm (the fastest I
> want to go whilst running in), it has no power whatsoever; coughing and
> spluttering on acceleration.
> I have checked the timing (with a strobe light) and checked and oiled the
> distributor weights, changed the points, condenser and rotor arm.
> I have also changed the coil.
> I have checked the gaps on the valves and the new spark plugs.
> I have cleaned out and reoiled the carburettors and adjusted and readjusted
> the carburettors (with colourtune) several times to no avail.
> I have cleaned and oiled the air filters (although these are currently not
> fitted).
>
> What else can I check?  All suggestions will be very gratefully received :-)
>
> Many thanks
> Paul Leeks
> Lancashire UK