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#79388 06/29/2007 3:21 PM | Joined: Feb 2000 Posts: 364 Shop Shark | | Shop Shark Joined: Feb 2000 Posts: 364 | I have purchased 2 Carter Weber 2bbls and installed them in my '42 1/2T Pu on a '60 235/Offy intake. I have a problem with the carbs stumbling/popping upon acceleration (appears to be in the primary). It idles great, has a manifold heater and does not have any vacuum leaks. I believe the primary emulsion tube is too restrictive...I need the next size or so. The tubes are stamped 150 for the primary and 250 for the secondary...Is my assumption reasonable? Secondly, where do you find/buy replacement emulsion tubes...I've called a Weber vendor and he won't even talk about Carter Webers! Any suggestions or direction? | | |
#79389 06/29/2007 5:54 PM | Joined: Mar 2005 Posts: 1,029 Member | | Member Joined: Mar 2005 Posts: 1,029 | Advance the timing slightly and see if there is any improvement. 90% of the "carb problems" I've had have been ignition related. Maybe Carb King will have parts sources. | | |
#79390 06/29/2007 7:38 PM | Joined: Nov 2002 Posts: 2,763 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,763 | carbking is unaware of any parts sources for the Carter Weber carbs.
Jon (carbking).
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 | | |
#79391 06/29/2007 8:30 PM | Joined: Feb 2000 Posts: 364 Shop Shark | | Shop Shark Joined: Feb 2000 Posts: 364 | Carbking was kind enough to walk me through the basics of the Carter Weber situation and to help me explore other options. A patient and knowledgeable gent.
Does anyone know if Weber replacement emulsion tubes will work in the Carter copy?
Has anyone tried drilling the existing tubes to modify performance? | | |
#79392 06/29/2007 9:04 PM | Joined: Oct 2005 Posts: 1,317 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 1,317 | Just a suggestion.....I'm running the same carb setup...C/W's, Offy, fresh 1960 235+ into Fentons, stock dist, .72 T5, 3.42 diff, and 28" tall tire. Out of the box, they were near perfect. Great idle, no hesitation and clean burn with the secondaries.
However, I learned from my experience with the single Holley/Weber, that the stock fuel pump needed to be throttled down with a regulator. I'm now running 3.5 psi at the carbs and couldn't be happier. I bought an inexpensive regulator and gauge from Azone.
I don't know if this will help you with your problem but it works for me. I just can't imagine that with your timing on the money that you'd be having to make any major changes to the jetting.
Dave | | |
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