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#4465 08/04/04 06:32 PM
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292 w/ the typical monojet. we pour a little fuel in thru the carb, and crank it over, and it'll run until it runs outta fuel that was dumped in. we sucked fuel thru the lines with a suction gun, but there is a small hole in the gas tank, hoping that has nothing to do with it *don't worry...i'll fix it, lol* but yeah. we're thinking its the fuel pump..just put the 3rd one on, and gonna try. the pump is cam operated..could it be that the cam is worn out, and not pumping? or is there another reason that no fuel is getting there? any insight is greatly appreciated..i'd like to get this done as soon as possible.

thanx again.
Sam


1967 Chevy II, 2-door post.
250, 3-OTT.

1969 GMC 1/2-ton.
307, 3-OTT.
DD.
#4466 08/04/04 07:34 PM
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Could be something like garbage in the carb. I wouldn't know but you can rule out the fuel pump pretty quick. Diconnect the line from the carb and run it into a jar or collector or some sort. Then crank the engine and see if it delivers fuel. I'd do this with two people if I was you.

#4467 08/04/04 10:38 PM
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thanx greg. we ruled out the fuel pump...a splice in the line wasn't tight. now it gets fuel, and idles fine, but when you push the throttle down, and it climbes in RPM's, it'll just like, gasp. i dunno if its just not getting enough fuel...we're going to try a different carb tomorrow, and see if that makes a difference.
thanx again.
Sam


1967 Chevy II, 2-door post.
250, 3-OTT.

1969 GMC 1/2-ton.
307, 3-OTT.
DD.
#4468 08/05/04 06:14 PM
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Sounds like it might be sucking in air and not enough gas.

Cheap trick:

Try spraying some starting fluid around the outside of the carb around the gaskets and screws when its ideling, if it revs up then you know that their is a gasket leaking in the carbs.

Mine was that way till i found a couple loose screws (no comments on this last line please )


The scenery never changes when all you ever see is my tail lights
#4469 08/05/04 06:34 PM
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lol, thanx johnny. i'll try doing that!
we put a different carb on today, and it idled fine, reved great...etc etc. was basically perfect. then we took apart the carb that was on it...rotchester monojet w. automatic choke, converted to manual..and it seemed ok. so we cleaned it up, put it back together, and tried it. it'll start up with fuel poured in..but then it seems like it just doesn't get any fuel. soo...i'll check for the gasket leak. keep ya informed.

Sam.


1967 Chevy II, 2-door post.
250, 3-OTT.

1969 GMC 1/2-ton.
307, 3-OTT.
DD.
#4470 08/06/04 02:07 PM
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 Quote:
Originally posted by samwise68:
lol, thanx johnny. i'll try doing that!
we put a different carb on today, and it idled fine, reved great...etc etc. was basically perfect. then we took apart the carb that was on it...rotchester monojet w. automatic choke, converted to manual..and it seemed ok. so we cleaned it up, put it back together, and tried it. it'll start up with fuel poured in..but then it seems like it just doesn't get any fuel. soo...i'll check for the gasket leak. keep ya informed.

Sam.
Sounds to me like either the fuel is being blocked in the carb or its sucking in air.

If you have a air compressor try setting it at a low pressure of about 8 to 12 pounds and blow it into the fuel port of the carb and see if that clears the line and check all the screws around the outside of the carb and make sure they are tight ;\)


The scenery never changes when all you ever see is my tail lights
#4471 08/06/04 02:20 PM
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When you work the throttle, does it squirt a stream of fuel into the carb? If not, or it's late, then the accellerator pump may be shot. There could also be something wrong with the power circuit.


I.I. #3174
#4472 08/06/04 03:59 PM
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thanx guys. i'll definitely check it all out. i'm leaving town for the weekend, and a new carb may be in my future..maybe even a new intake! it'd be great to get away from the single monojet...who knows what you can find down south. muwahah. well, i'll let ya all know how it goes. thanx again.

Sam.


1967 Chevy II, 2-door post.
250, 3-OTT.

1969 GMC 1/2-ton.
307, 3-OTT.
DD.

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