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« Last post by cardan on March 12, 2024, 02:52:42 AM »
Hi John,
That's interesting - I'd not thought much about the tapered needle in the MDY (1928-on), but it seems this was it's first appearance on an AMAC carb. The tapered needle (usually called "variable jet") arrangement was covered in a 1913 Brown & Barlow patent, and was first used on their 1914 model carbs. So through the 1920s, B&B had models with tapered needles, and AMAC didn't. Until 1928. I wonder if this was part of the AMAL deal, where AMAC, B&B and Binks were amalgamated to form AMAL?
B&B's tapered needle and AMAC's air control on the side on the throttle body were two features used on the AMAL carbs for years...
Anyway, good tips for Geoff.
Cheers
Leon