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Solution to stalling at cold startup
#1
I've only driven the car a couple times so far this season and encountered some typical problems that were resolved pretty easily. The carb was installed 6 yrs ago and has run without a single problem since (until now)

Symptoms: stalling / rpms dropping during choke cycle at cold start. Stalling when slowing down (street light / stop sign) before fully warmed up. Unable to kick down rpms to normal idle (600 in drive / 700 in park). Idle remained at 900 rpm in gear even after warmed up.

Test: checked all vacuum hoses / replaced one or two that were stretched at the ends. Critical test: while running through the choke cycle (once I feathered the gas long enough to keep it running) I sprayed a light mist of starter fluid at the base of the carb.
Result: rpm's immediately jumped up 200-300.

Solution: Change the base gasket. Now it cold starts exactly the way it should; does not stall, and when warm idles at 600 rpm in drive.

Cost: $5.40 for new base gasket and 3 ft of vacuum hose. Time to evaluate issue plus 20 minute drive each way for gasket and hose and reinstall: 2 1/2 hrs. Also cleaned up manifold while carb was off.

Just passing along a typical issue and solution.
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#2
Thanks Bill good to know information!

Jim

Jim

M code 71 Mach 1, 351 4V Cleveland, Ram Air (not factory), C6 Trans, 3.5 rear
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#3
Good info Bill!

Jeff T.

Low buck, touring style, '73 Convertible "rolling restoration", 351c, 2v heads with a shave and a haircut, Performer intake, Holley 650(ish), roller rockers, screw in studs, guideplates, stainless valves, Duraspark / Motorsports MSD, T-5 conversion. 1-1/8" front, 3/4" rear swaybars KYB shocks and some home brewed subframe connectors. Future plans; JGC steering box, Cobra brakes and... paint, interior, etc.

When I die I want to die like grandpa, peacefully in my sleep... not screaming, like his passenger.

[Image: 1_12_09_14_10_15_11.png]
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