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BJ7 TRIPLE SU WOES

To: healeys@autox.team.net
Subject: BJ7 TRIPLE SU WOES
From: "scott@scottjgraham.com" <scott@scottjgraham.com>
Date: Sun, 1 May 2005 04:26:23 -0700 (PDT)
Hi listers - need some help on my Healey BJ7 carbies. 
 
The car was converted to a triple SU set-up (I was told by the shop they are 2" 
and have assumed they are the HD8's used for Healey BJ8's). 
 
The carbies have been overhauled by a reputable local shop but they were unable 
to adjust them to idle correctly. The carbies only have one adjusting screw & 
the shop has adjusted them to the max but the highest idle speed possible was 
300RPM at which they constantly stall. 
 
I have used my pedal stop to bring the idle up - but this is far from ideal. 
 
When looking at the carbies, they do not match the illustrations in my SU 
manual for either HS or HD type carbies. Neither can I find the carbie serial 
numbers there or on the internet. The carbies lack (by design):
- Fast idle adjusting screw
- Throttle adjusting screw
- Jet adjusting scew
Instead, they only have a screw in the location marked in the book as a "Slow 
running" volume screw.  I was told by someone else that these may have been 
later emissions compliant SU's.
 
Can you please help me identify these carbies. The numbers on the units are:
 
- Front: carby body - 709c; bowl tag - AUD 157c; junction with manifold - C  13 
 6.
- Middle: carby body - 709c; bowl tag - AUD 157f; junction with manifold - C 13
- Rear: carby body - 2044 (IGN); bowl tag - AUD 157c; junction with manifold - 
C  9  6.   

Thanks
 
Scott J Graham
62 BJ7
60 Bugeye 




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