'57 stalling, mssing problem

[Michael Jones]

[G B.]

Re: '57 stalling, mssing problem

Perhaps you're sucking the fuel pump inlet hose flat. They tend to fail internally first, like a brake hose.

[G B.]

Another thought

Perhaps the heat tube within the right exhaust manifold has a rust hole in it. This would allow the choke on the rear carb to suck hot exhaust gas into the carb, causing the fuel to boil.

[Jack H.]

Plus, be a CONSIDERABLE danger!

On these older cars, it's a MUST to verify the integrity of the fresh air tube in the RH exhaust manifold. If it's ruptured, you're flirting with disaster as the potential for red hot exhaust gas to enter your carb's venturi via the choke is sitting/waiting.

Generally, you get some indication by removing the Bakelite choke cover and looking for exhaust gas residue. But, the BW to diagnose is to plug one end of the fresh air tube running through the exhaust mani and verify it holds pressure when you inject or extract air from the opposite end.

Replacement fresh air tubes are available in reproduction for only a few dollars. Why flirt with an EXPLOSIVE situation on your classic Corvette? Verify you don't have a problem here and/or simply use good judgement during restoration and replace this and other wear/danger components of your car....

[Robert Willis]

Re: '57 stalling, mssing problem

When ever any of my old cars have done that it's allways been the condenser in the dist or the coil.
Once I had a customer with the same problem and I told him condenser so we put one in and it did the same thing, then I replaced the new one with another new one and the problem went away.
Just becuse parts are new doesn't mean they are good.
My car also is a dual 4 car and it will surge if my points in the 891 are burnt just a little.

Good luck.
Bob

http://members.kos.net/willisb/

[Roy B.]

Re: '57 stalling, mssing problem

Every advice you got is right on and things to check ,plus adding cloths pins on the gas line to the carb or aluminum foil. Those were the so called good days!.

[Scott S.]

Re: '57 stalling, mssing problem

Micheal, I have a 1956 Corvette and a similar experience developed on my car. The fuel tank had some rust particles in the fuel and they clogged the small screen filter in the tank. Once the vaccuum was removed from the line, the particles fell back into the tank and we would startoff again, the problem developed in another 20 miles.
The fuel pump has three inlet and three outlet valves one weak valve can cause a similar problem. Low fuel pressure will allow the fuel to vapourize in the line.
Scott Sinclair