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#78869 06/16/2007 1:21 AM | Joined: Apr 2007 Posts: 82 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2007 Posts: 82 | Rebuilt the carb but the seat that the needle valve goes into is much longer than the original I pulled out. Also the needle has a pin that goes into the end that has a spring on it, not like the original. What does this spring do?
This causes the float to be very rigid and does not move easily like in the original set up. Any thoughts? Should I just clean the old? Thanks for any insight.
Oh yeah, Its a carter YF on a 235. | | |
#78870 06/16/2007 3:15 AM | Joined: Nov 2002 Posts: 2,763 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,763 | Some of the Carter YF carbs (including most of the aftermarket ones for Chevrolet) have the spring loaded fuel valve. Most of the aftermarket kits did not offer this spring loaded valve because it is much more expensive than the solid valve. Someone in the past may have rebuild the carb with the cheaper solid valve, and readusted the float. Use the spring loaded one, it is far superior.
The float may be adjusted two ways:
(A) by changing the thickness of the gasket under the fuel valve seat.
(B) by bending the tang on the float
If possible, A is preferable to B.
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 | | |
#78871 06/16/2007 5:26 AM | Joined: Apr 2007 Posts: 82 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2007 Posts: 82 | The fuel valve seat is about much longer than the one I pulled out. I dont think changing the gasket thickness will help much. Ill try the tang, as this thing is really long compared to the other. I am a novice at this but what it sounds like your saying is the rebuild kit is more likely the correct size versus what I took out of the carb?
I think I need some major guidence. I ll have to call you monday at the shop as I bought the kit from your very highly recommended business. I dont want to screw it up!!!! | | |
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