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#14905 06/18/2003 7:07 PM | Joined: May 2003 Posts: 22 Junior Member | | Junior Member Joined: May 2003 Posts: 22 | Which carb is better the Carter W-1 or the YF?
John | | |
#14906 06/19/2003 3:04 AM | Joined: Nov 2002 Posts: 2,766 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,766 | For a daily driver, the YF is better. Much better metering circuits in the YF. The only real problem with the YF can be the diaphragm type accelerator pump. If driven only occasionally, the gasoline in the bowl can evaporate, leaving the inside of the carburetor dry. Diaphragms don't like to be dry once they have been in gasoline. They show their displeasure by becoming brittle and cracking, rendering them useless.
The W-1 is a much older design (1932 vs 1950). Accelerator pump is the much preferable leather. After the leather dries out, simply refilling the carburetor with gasoline will soak up the leather, and the accelerator pump will perform.
Personal opinion - on a scale of one (awful) to ten (wonderful), I would rate these as follows:
1932 - 1933 W-1 (5)
1934 - 1936 W-1 (5.5)
1937 - 1948 W-1 (7)
1949 W-1 (7.5)
1950 up YF (9.5 if used as a daily driver, otherwise 6)
1950 up Rochester B (5)
Jon.
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | |
#14907 06/19/2003 5:27 PM | Joined: May 2001 Posts: 1,904 'Bolter | | 'Bolter Joined: May 2001 Posts: 1,904 | Thanks for the ratings, Carbking! I had a YF carb on my '75 AMC Hornet that I sent to the knackers. If I can find one of those, would it be a simple switch for my W-1? What about the YF's heat tube that went from the bottom of the exhaust manifold to the carb?
(I wish I knew I was going to get my truck before I got rid of the Hornet's carb.)
1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
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