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Veteran
Posts: 210
Location: Suwanee, GA | I rebuilt the Carter carb (3251S) for my 62 Chrysler 413 a couple of years ago. I recall at the time the plunger that came in the kit (Sorensen 96-113D) seemed almost loose in the bore, so I bought a spare from Napa (CRB 2-4044). Never did use the spare, but also see Napa CRB 2-4111 as a possible part number. At the moment it's not pumping. Anyone know which is the correct part number and what the dimensions are? According to Mike's Carburetor Parts it should be 11/16" diameter x 2.290" long (his part number AP237).
Any install tips to ensure it works properly other than Mike's install tips on his website?
Thanks,
Robert |
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Expert 5K+
Posts: 9900
  
Location: Lower Mainland BC | .
Some of the older accelerator pumps used a leather (yes, real leather cup and it was probably wise to soak the plunger/pump in gasoline for a few hours before installation to allow the leather cup to expand (and fill the pump bore more thoroughly).
Just a thought.
Edited by 56D500boy 2021-11-26 8:01 PM
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Expert
Posts: 3393
 
Location: Chestertown, NY ( near Lake George) | Also make sure the check ball in the pump bore is in place and not stuck. |
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Extreme Veteran
Posts: 580
| I've had to soak the leather pump in oil overnight and then roll or flare out the lower end of the leather slightly to get it to work.
I think it was Mikes Carb. that told me not to soak it in gas.
I don't remember how the 4brls. are but in the 2brls. Stromberg WW's their are two different size check balls in the carb. I believe the smaller one goes into the pump bore. That's how it is on the 2brls. at least.
Edited by local2Ed 2021-11-27 4:38 PM
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Veteran
Posts: 210
Location: Suwanee, GA | Thanks everyone. Found a good video on the accelerator circuit on these carbs. I had a couple of problems: clogged squirter nozzles (unclogged them); and running extremely rich after start up to the point of stalling (I believe one of the needles wasn't seating correctly as it was dripping gas inside the carb). Removed both floats and needles. Cleaned them, but didn't see anything obvious. Removed and checked the check ball (good). The plunger that was in the carb when I got it 6 years ago is longer than the replacement I bought, hence the original question. Didn't measure them, but 1/8 - 1/4" longer. Ended up putting the original back in as it worked better. Not as snug in the bore as the other, but squirts fuel much sooner. BTW, the car has been sitting the better part of a year untouched.
I'll eventually go through the carb again, but needed to get it drivable to transport to my home. Didn't check the float level, but wondering why often times it's difficult to restart engine shortly after it's been run. Acts like it's flooded, and I have to sometimes put pedal to floor to get it to start. Could that be a function of float level? |
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413 accelerator plunger question
