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Irwin Arnstein working on his
1959 Chevy 1-Ton


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Joined: Nov 2019
Posts: 14
M
New Guy
my 1954 chevy truck with a 235 will idle all day long but when I try to give it a little gas it just dies or will eventually raise the rpm but sputters the whole time. I've tried adjusting the timing a little but it just sets the idle a little higher or lower. I'm excited I've finally got it to fire up, now I need to make it accelerate when I give it gas. It snaps, crackles and pops so much when I try to give it gas, I'm about ready to call her Rice Crispys. Thanks for any information, I am new to this and this is my first thread. I'm sure there are already answers in these forums someplace, just not sure where to look.

Joined: Jan 2013
Posts: 2,117
'Bolter
So did you set the timing correctly? How much is it raising your RPMs? Is your vacuum advance moving the distributor? Have you checked fuel filter and fuel pump pressure?

Just a few thoughts off the top of my head.

Chris

Joined: May 2005
Posts: 8,874
B
Sir Searchalot
If sure about timing.....

Check all places vacuum could leak..... Manifold, hoses, fittings, carb gaskets, ports.

Rebuild carb. Needs it anyway. Eliminates a lot of possibles.


Watch out for careful drivers!!!
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Joined: May 2001
Posts: 1,810
W
'Bolter
Probably not the answer but how's your choke sequence?


1948 3/4-Ton 5-Window Flatbed Chevrolet [sandeace.com]

29 Years of Daily Driving. With a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
Joined: May 2001
Posts: 1,810
W
'Bolter
Probably not the answer but how's your choke?

Last edited by Wally / Montana; Thu Nov 21 2019 03:37 AM.

1948 3/4-Ton 5-Window Flatbed Chevrolet [sandeace.com]

29 Years of Daily Driving. With a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
Joined: Nov 2019
Posts: 14
M
New Guy
[quote=ndkid275]So did you set the timing correctly? How much is it raising your RPMs? Is your vacuum advance moving the distributor? Have you checked fuel filter and fuel pump pressure?

Just a few thoughts off the top of my head.

The timing isn't set correctly, I have no timing light. I was hoping to get it running good enough to get it to the shop. I'd turn the distributer until it idled smoothly, which it does idle smooth. It raises the RPM approximately from about 800 to 1200 RPM. I put a new fuel pump on it and replaced the gas tank, cleaned all of the lines and rebuilt the carb, altho not to sure if it's rebuilt correctly or not. I'm beginning to think it has carb issues. Seems like the vacuum advance is free and moves OK, is there a way I can tell? Thanks so much for the reply. Stovebolt forums is the place to go when getting a little frustrated.

Joined: Nov 2019
Posts: 14
M
New Guy
Originally Posted by bartamos
If sure about timing.....

Check all places vacuum could leak..... Manifold, hoses, fittings, carb gaskets, ports.

Rebuild carb. Needs it anyway. Eliminates a lot of possibles.


Thanks for the reply. I've been looking for a vacuum leak and will keep looking. I rebuilt the carb but being a rookie I'm never sure of what I might be missing. I'm 64 years old and this was my first carb rebuild! Thanks so much again for the reply.

Joined: Nov 2019
Posts: 14
M
New Guy
Originally Posted by Wally / Montana
Probably not the answer but how's your choke sequence?


I'm really not sure about the choke sequence. The choke plate moves. How would I check the sequence? Please forgive me, I'm old, 64, and can use all the help I can get. Looks like I came to the right place for help. Thanks so much for the reply.

Joined: Mar 2000
Posts: 1,582
Red dot, center of chest ...
Quote
Thanks for the reply. I've been looking for a vacuum leak and will keep looking. I rebuilt the carb but being a rookie I'm never sure of what I might be missing. I'm 64 years old and this was my first carb rebuild! Thanks so much again for the reply.

To check for vacuum leaks, get a can of ether or carb cleaner. Spay the rubber hoses and connections where vacuum is connected. Spray the base of the carb where it mounts to the intake. If the engine races, you've found your leak.


Paul Schmehl CI 6
geek@stovebolt.com
Stovebolt Staff: Geek
Joined: Nov 2012
Posts: 29
H
'Bolter
Perhaps non-functioning accelerator pump? Check if gasoline sprayed into carb throat when accelerating (engine off).

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