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RE: Adjusting 2" SU Carburetors

To: "'Alan Seigrist Blue 100'" <healey.nut@gmail.com>,
Subject: RE: Adjusting 2" SU Carburetors
From: "Alan" <alan@nfahc.co.uk>
Date: Mon, 4 Sep 2006 16:31:36 +0100
Wow!
Within the hour! Do tell how. Those nuts on the bottom of the carb flanges
are a bear to get at. The carbs on a BJ8 are BIG, and for you guys the
steering column is under there too. There isn't a lot of space to swing the
spanner (wrench).
;^)
 _______________________________________________
(______________  Alan Bromfield  _______________)
   (______     \____1957-BN4 ___/    _______)
          (_________1965-BJ8________)
            http://www.nfahc.co.uk
            mailto:alan@nfahc.co.uk  

-----Original Message-----
From: owner-healeys@autox.team.net [mailto:owner-healeys@autox.team.net] On
Behalf Of Alan Seigrist Blue 100
Sent: 03 September 2006 05:34
To: Ned Smith
Cc: Austin-Healey List
Subject: Re: Adjusting 2" SU Carburetors

Ned -

If the butterfly valve on the throttle shaft (i.e. the round brass throttle
plate) is not properly seated in the fully closed position, you will get
this problem because air is leaking past the throttle plate even when it is
fully closed.

You have to remove the carbs and then loosen (don't remove) the two flat
head screws that hold the throttle plate in place, so that the throttle
plate can be adjusted.  Then close the throttle and make sure the throttle
plate is fully secured in the closed position inside the throat body (it
should be air tight around the edges of the plate)...  then tighten the two
screws.

Put the carbs back on and voila it will work correctly now.  Don't fret,
putting my mind to it I can have BJ8 carbs off the car, adjusted, and back
in within 1 hour.   GIT 'ER DUN!!

Cheers,

Alan

'52 A90
'53 BN1
'64 BJ8




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