Fuel/idle problem
Thread Starter
Racer
Joined: Jun 2006
Posts: 289
Likes: 40
From: Duxbury MA
Fuel/idle problem
I can change the oil and adjust the timing, but diagnosing problems is above my pay grade, so I need a little help from you guys. I put my '70 away last fall with fuel stabilizer and an oil change, everything was running fine.
I started it up this spring no problems. After a couple of miles I came to a stop light and it stalled, I thought maybe the idle needed to be adjusted. Adjusted the idle and filled it up with fresh fuel, but no change. The car just stalls if under 2,000RPM. If I keep the throttle up it runs, otherwise it just stalls out. It starts right up from cold and runs ok, as soon as it warms up it stalls and becomes very tricky to restart with lots of finesse pumping the gas pedal.
Any ideas?
I started it up this spring no problems. After a couple of miles I came to a stop light and it stalled, I thought maybe the idle needed to be adjusted. Adjusted the idle and filled it up with fresh fuel, but no change. The car just stalls if under 2,000RPM. If I keep the throttle up it runs, otherwise it just stalls out. It starts right up from cold and runs ok, as soon as it warms up it stalls and becomes very tricky to restart with lots of finesse pumping the gas pedal.
Any ideas?
Last edited by 70GHH; Apr 10, 2019 at 11:20 AM. Reason: More info added
Pro
Joined: Sep 2016
Posts: 720
Likes: 205
From: Michigan
Sounds like the choke may be the culprit.
What type of choke are you running with?
The choke is intended to adjust the amount of air into the carb, based on the temperature of the engine.
Cold engine - max choke / Warm engine - fully open.
If you're starting OK cold, and idling rough and stalling when warm, the choke may not be opening sufficiently to let'er breathe.
Most are adjustable, and mine needs tweaking when the weather goes from cool to hot.
What type of choke are you running with?
The choke is intended to adjust the amount of air into the carb, based on the temperature of the engine.
Cold engine - max choke / Warm engine - fully open.
If you're starting OK cold, and idling rough and stalling when warm, the choke may not be opening sufficiently to let'er breathe.
Most are adjustable, and mine needs tweaking when the weather goes from cool to hot.
Is my vette stock?? HAHA
Joined: Oct 2015
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From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
I was thinking vacuum too..
