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Arch 93
11-11-2002, 08:52 PM
Would like to know if these carbs are HS or HD type.
Thanks

bighly
11-11-2002, 09:16 PM
What carbs?

Dave Russell
11-11-2002, 10:38 PM
Thomas,

Re: 100-4 carbs,

The original fours have neither HS or HD carbs. they are just the earlier H type. The standard fours had H4's & the LeMans spec had H6's.

D

Arch 93
11-14-2002, 07:56 PM
Bighly; what do you mean, "what carbs". I don't understand your question.

Dave; my car is a 1955 BN-1, so it must have H4s. I asked this question because someone asked me what type of carbs are on my car, HS or HD type. Of course I didn't have an answer. While I'm about it, do either one of you (or anyone else)have a recommendation concerning books about repair/tuning these carbs? I'd like to start doing more of my own maintenance.

Thanks guys.

Dave Russell
11-14-2002, 08:50 PM
Thomas,

"SU Workshop Manual" is pretty good, you can get it from Moss Motors.

Also see the following links for SU info:

https://www.team.net:80/www/morgan/tech/tuning.html
https://www.teglerizer.com/suneedledb/index.html
https://www.teglerizer.com/sucarbs/index.html

https://heine.nusa.co.za/Library/SU%20Carburettors.htm

https://www.jcna.com/library/tech/tech0006.html

Probably more than you want.

D

Arch 93
11-15-2002, 08:22 PM
Thanks Dave