Carburetors for a 1275cc Engine

Any topics pertaining to the BMC A-Series engine.

Carburetors for a 1275cc Engine

Postby jkclassics » Fri Oct 05, 2018 4:14 pm

I'm having a machine shop clean up and reassemble a 12CD engine to replace my '60 BE's tired 948. I plan on using HS2 carburetors; I currently have two sets, AUD73 and AUD136, which both need some work. Before I spend time on them, I'm wondering if either is the best fit for this engine or if I should be looking for something of a later vintage.
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Re: Carburetors for a 1275cc Engine

Postby Charlie Tolman » Tue Oct 09, 2018 1:17 am

A Victoria British catalog lists HS2 carburetor numbers of AUD-73 and AUD-136 for 1098 engines, 1962-'66.
HS2 carburetors, AUD-266, -328, -404, and -549 are listed for 1275 engines, 1966-'74.

Over the applicable years, there are several differences in many of the replacement part numbers, too many to list here.

The two generic drawings in the catalogue for 1098 and 1275 applications, appear to be the same for the carbs listed above.

I do not know if one of these carburetors is considered to be the best for your application.

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