[Healeys] Fw: HS-4 choke free play

[john spaur]

I have an SU workshop manual, which does not deal with setting the 
choke, one BMC reprint of the shop manual and two original factory 
service manuals. No shortage of manuals. Section DDD.6, which is for 
the HS-4 carb, are issue 4 and issue 1 (36201).

In section DDD.6 there is no mention of 1/16" clearance for the choke 
cable or anything about residual tension on the choke cable. The 
manual does mention this issue in relation to the throttle 
butterfly's and spindles.

However, upon reading the manual more closely, it states that the 
choke knob should move about 5/8", without moving the jets, and then 
the fast idle is set to 1,000 rpm hot. That's the answer to my question!

John Spaur

At 01:44 PM 1/28/2013 -0500, warthodson at aol.com wrote:
>I believe the choke cable on HS carbs actually performs two separate functions
>as it is pulled out.
>First is fast idle. Second is enrichment, I.E. choke.
>If you adjust the cable such that is just beginning to move the main jet, then
>you will always have the carb set to fast idle.
>As I recall, the work shop manual explains the correct adjustment of the choke
>cable. It goes something like this: With no fast idle & no choke, I.E. the
>linkage & cable NOT engaging either fast idle or choke, the dash choke knob
>should be approx. 1/16" away from the dash. This slight gap will assure that
>when you release the choke/fast idle that there is no residual tension on the
>cable.
>The manual does a lot better job of explaining this. If you do not have one,
>you should.