accelerator pump size?
#2535373
08/12/18 11:33 PM
08/12/18 11:33 PM
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Joined: Jun 2008
Posts: 574 Just South of The Motor City
limechallenger
OP
mopar
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OP
mopar
Joined: Jun 2008
Posts: 574
Just South of The Motor City
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I've got a 70 T/A Challenger with a original 340/6pack, I rarely drive it anymore , but I fired it up the other day and noticed the accelerator pump is leaking pretty bad! So it looks like I will pull the carbs ,anyway I need to know what size diaphragm it has ! E-bay has both 50 cc and 30 cc, anybody know which one I need? Thanks!
70 T/A Challenger
78 Aspen R/T
87 Indy 500 Dakota
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Re: accelerator pump size?
[Re: limechallenger]
#2535376
08/12/18 11:39 PM
08/12/18 11:39 PM
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Joined: Jan 2003
Posts: 15,552 Norwich CT USA
moparts
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 15,552
Norwich CT USA
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From pictures I see on line it is the small Accelerator pump
Tom ,
2011 Ram 3500 C&C Diesel 2009 Challenger R/T 1971 Challenger Conv. 511/4 speed 1970 Challenger R/T 503/727
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Re: accelerator pump size?
[Re: Cab_Burge]
#2535598
08/13/18 01:24 PM
08/13/18 01:24 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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Cab is the man! (& for your app I wouldn't think you'd need the extra squirt from 50CC's)
live every 24 hour block of time like it's your last day on earth
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Re: accelerator pump size?
[Re: topside]
#2535637
08/13/18 02:38 PM
08/13/18 02:38 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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^^^ good info (& sand in a figure 8). EDIT with solvent & not sure what grit paper, 600?
Last edited by RapidRobert; 08/14/18 02:08 PM.
live every 24 hour block of time like it's your last day on earth
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Re: accelerator pump size?
[Re: lewtot184]
#2536099
08/14/18 12:01 PM
08/14/18 12:01 PM
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Joined: Jun 2008
Posts: 574 Just South of The Motor City
limechallenger
OP
mopar
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OP
mopar
Joined: Jun 2008
Posts: 574
Just South of The Motor City
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center carb came with 30cc pump. may not be the pump but a poor seal between the metering block and carb body due to warpage. been thru it! is it gonna warp after 20 years? I built the car in 1992 and have never had a problem, just recently ,it's been a year since I last ran it and the leak developed!
70 T/A Challenger
78 Aspen R/T
87 Indy 500 Dakota
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Re: accelerator pump size?
[Re: limechallenger]
#2536167
08/14/18 02:12 PM
08/14/18 02:12 PM
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Joined: Jun 2008
Posts: 3,916 usa
lewtot184
master
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master
Joined: Jun 2008
Posts: 3,916
usa
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center carb came with 30cc pump. may not be the pump but a poor seal between the metering block and carb body due to warpage. been thru it! is it gonna warp after 20 years? I built the car in 1992 and have never had a problem, just recently ,it's been a year since I last ran it and the leak developed! what happens is the body gets distorted from repeated tightening of the float bowl screws. if your carb has had few rebuilds/jet changes/etc then maybe your ok. I know I've chased accelerator pump leaks only to find the weeping was between the metering block and carb body.
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Re: accelerator pump size?
[Re: lewtot184]
#2536241
08/14/18 04:18 PM
08/14/18 04:18 PM
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Joined: Aug 2003
Posts: 43,293 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,293
Bend,OR USA
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center carb came with 30cc pump. may not be the pump but a poor seal between the metering block and carb body due to warpage. been thru it! is it gonna warp after 20 years? I built the car in 1992 and have never had a problem, just recently ,it's been a year since I last ran it and the leak developed! what happens is the body gets distorted from repeated tightening of the float bowl screws. if your carb has had few rebuilds/jet changes/etc then maybe your ok. I know I've chased accelerator pump leaks only to find the weeping was between the metering block and carb body. Murphy loves messing with us hot rodders ![whistling whistling](/ubbthreads/images/graemlins/custom/whistling.gif) My message is many things, problems, can have the same results cause by several different things ![shruggy shruggy](/ubbthreads/images/graemlins/custom/shruggy.gif)
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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