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I started rebuilding a set of HS2 (AUD502) on the back of the throttle butterfly there is a blob of solder.
Is this factory or someone's mod ? or just a counter weight?
How much throttle shaft play is to much ? What is the best kit for rebuilding ? Who is good at rebushing throttle shafts ? SU's are for "72" 1275.
The last thing is float hight in Haynes is 1/8" to3/16" at the end of the float,the workshop manual shows 1/8"-3/16"
pin in the center of the float. Were do you check the hight?
Anything I should wach out for when rebuilding?
THANKS GUYS.
>is this factory or someone's mod ? or just a counter weight?
This is not factory. It may be that someone has installed later
butterfly with a spring-loaded relief valve, and has soldered
it closed. Or - is the solder to hold the bifurcated screws?
>How much throttle shaft play is to much ?
More that 3-5 thou. But in any case, play in the shaft only
affects idle or near-idle set up, since with a high vacuum,
air leaks past. It really does not make any difference 'on
the move'.
>What is the best kit for rebuilding ?
Never used one - I have bought individual pieces, from Aldon
here in the UK. Any supplier who can get hold of the original
items shoudl be OK
>Who is good at rebushing throttle shafts ?
Can't help with this - but in any case, if you've got worn shafts,
try replacing them; you might not need to re-bush the carb
housing.
Check out University Motors owned and operated by John Twist
for the throttle rebushing. At:
http://www.universitymotorsltd.com
He takes technical calls from 1-2 Mon-Fri (I'm pretty sure the time is correct). Find phone number at website.
He will be able to intelligently discuss the rebuild procedure
and the mods that have been made to your carb. Won't B.S.
you.
Lots of information. Spot on problem diagnosis. All for the price of a phone call.