CARTER 2bb carburator

[mopar73dge]

I have this nos carb for my 318 had for 4 years and about 5000 miles on it the last two years I need to pump it at least 12 times to start it after it sits for a week hot starts right up. The fuel filter was changed 5 years ago, engine surges a bit while cruising around 2200 rpm. Choke works fine. The engine hesitates from start to about 40mph all the time. Any thoughts? I am now tired of the performance, and need to fix it. Thanks

 

[PurpleBeeper]

My first guess about your hesitation is old gasoline....it only stays good for about 3 months. I also suspect that your accelerator pump might be worn out....$5 part.

 

[artr8]

1. Couple things to help you out. metering rod lift height- note the slot in the metering rod lifter. Rotating the relationship to cam will raise or lower the metering rod to the main jets. As you go up, it allows more fuel into the system. Slight adjustments will change how the car surges at light throttle, low to medium speed.
2. Very likely today's fuel evaporates from the carb and you are starting with an empty carb.
3. Again with today's fuel, your accelerator pump has deteriorated or shrunk.

 

[mopar73dge]

You are correct with the methanol thanks

 

[69L48Z27]

Same carb on my 77 truck. Thing runs great, starting seems to take a bit longer than it should if it sits for a couple week. Almost like the system drains back. Shooting it with carb cleaner and starting it on that pumps it up quick.

My service manual had a sequence to set those metering rods, make sure you follow that.

 

[mopar73dge]

Thank you

 

[mopar73dge]

ok I ordered a rebuild kit from Mikes Carburator Parts, an exceptional company,they have the exact kit with the accelerator pump part, made with leather and it ethanolol compatable. He recommends to oil the pump leather with a couple of drops of oil, I used my Lucas hot rod oil that I used in my engine. let it sit for a few min. before installing. My old acc pump was shrunk shown in the attached photo, slight cracks in the material, this is where all the low no power issues came from when starting froma slow acceleration, and some mid power issues,highway no issues and a stall one time. I cranked the engine and let the bowl fill, pumped the gas once and it fired right up idles fine. I need to drive it since last night we were having some down pours. More to come after my test drive tonight. So for this Carter NOS with 5000 miles and four years of use on it it only needed the new acc pump and the new gaskets of course. A rebuild for $170.00 was quoted froma place in FL. The kit was 29.00 plus 4.00 shipping from WA.