If the slow running screw is not able to adjust the idle speed below 800 rpm
he probably has an air leak through the throttle shafts or the rubber
gaskets on the slow running screw are worn/leaking/nonexistent, etc. The
BJ8 carbs use a nylon sleeve to control air flow around the throttle shafts
and these could easily be worn (mine were). They are not too hard to
replace and can make a big, big difference. If they are leaking no amount
of screw turning will do any good to reduce the idle rpm any more.
stever
-----Original Message-----
From: owner-healeys@autox.team.net [mailto:owner-healeys@autox.team.net] On
Behalf Of Bob Spidell
Sent: Tuesday, November 02, 2004 8:54 AM
To: Healey
Subject: Re: BJ8 carb adjustment
To get in the ballpark, adjust the mixture screws on both carbs--keeping the
everything
else the same--until you get maximum RPM. Then use the method Eric
describes to
fine tune (you'll be pretty close already). Be sure the airflow is the same
on both carbs
using a Unisyn or other flowmeter, or by ear if you wish.
If the carbs are set up properly both should take (close to) the same number
of turns on
throttle, idle valve and mixture screws. If there's a big difference
between carbs on any
of these there is something amiss.
Participate in Democracy.
"In the end, we will not so much remember the words of our enemies,
but the silence of our friends." Martin Luther King, Jr.
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