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Topic: Failing accelerator pump?

in Forum: C3 Fuel, Emission Control, and Exhaust Systems


Failing accelerator pump?

Posted: 5/31/05 6:43pm Message 1 of 3
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WEST SENECA, NY - USA
Joined: 12/3/2001
Posts: 2379
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.

Need an opinion here. I took apart my Edelbrock 1904 Q-jet carb to do another primary jet/metering rod change for tuning purposes. The accelerator pump was still compressed into the well it sit's in as I removed the upper gasket. Then popped out after a minute. It feels like it's binding a little as you move it up and down. But it seemed fine after reassembly. The car was a real b!tch to get started, and didn't want to start readily after it stalled a few times. Pumping the heck out of the gas was the only it would re-fire. The throttle responce was bad when cold, but got better once the car was hot. Thanks in advance!

Darryl





GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


Lifetime Member #26
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Failing accelerator pump?

Posted: 5/31/05 6:57pm Message 2 of 3
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Yep!!
If it was stuck down in the well, it is probably swollen to the point of no return. Replace it, and be sure there is a spring under it upon reassembly, as well as the usual one on the shaft of the 'pump'.


Joel Adams
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Failing accelerator pump?

Posted: 6/2/05 8:13am Message 3 of 3
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Lifetime MemberLifetime Member
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WEST SENECA, NY - USA
Joined: 12/3/2001
Posts: 2379
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.
Thanks Joel!



GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


Lifetime Member #26

in Forum: C3 Fuel, Emission Control, and Exhaust Systems


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