Mick, I have the old H series carbs on my healey, I rebuilt the jets when I
got the car, sometimes it helps to use fine automotive polishing compound or
jewelers rouge to make the surface of the shaft you are sealing against
ultra smooth and clean, also should save wear and tear on the little gaskets
with a smooth surface, can't hurt anyway.. I believe you can get rubber
o-rings also for this job, opinions differ on which is better, and I can't
remember what I used, but it worked
Turning counter-clockwise should move the jet down and richen the mixture as
stated in the manual, you might check to see if you have the proper
carburator needles or any air leaks in the carbs.
Greg Lemon
54 BN1
Sent: Saturday, April 10, 2004 4:37 PM
Subject: H4 Carburetor Blues
> While trying to adjust the mixture on my H4 carbs, fuel started dripping
from
> the jet adjusting nut. I assume the cork sealing ring is shot (again).
These
> were just replaced a few months ago. Is there an alternative to these
cork
> rings, or some other way to prolong their lives?
>
> Also, it seemed that I could never get the mixture rich enough by turning
the
> adjusting nut. The engine would always slow down when I lifted up on the
> piston. The only way I could get it correct is by using the choke arm to
pull
> the jet downward. The Haynes manual states that the jet adjusting nut
should
> be turned counter-clockwise (when looking down at the carburetor) to
increase
> the richness of the mixture. Is this correct? It didn't seem to do a
thing
> for me.
>
> Thanks,
>
> Mick Vander Ploeg
> '57 BN4
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