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Jul 21st, 2025 | | | | Joined: Aug 2009 Posts: 31 New Guy | | New Guy Joined: Aug 2009 Posts: 31 |
I have a 1963 Nova 194 six just installed in a 38 Chevy 1/2 ton. Engine easily turns over, starts for about two seconds and dies. Fuel pump sends fuel to carb. In gas line filter has been replaced. Have replaced coil, points, condenser, rotor and distributor cap. I have spark to plugs. Have rebuilt and cleaned carb.
I have aligned TDC marks on front crank and the rotor is pointing to #1 cylinder wire hole in distributor. Intake manifold is wet with gasoline. When engine catches, any throttle input appears to flood engine and cause it to stall.
Any ideas? I am at a loss, other than just replacing the carb, it does not look like the original, it is probably a rebuild.
Guy I purchased it from was a GMC technician and said it ran well in his 63 nova wagon before he removed it to put in a small block. Again any advice, tips, or anything I may have missed would be appreciated.
Confused in Huntington Beach, CA
Don
Oldbald2
| | | | | Joined: Apr 2005 Posts: 275 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 275 | The ballast resistor may be bad. Put a jumper wire from Batt.+ to the coil + and see if it keeps running after you start it.
To verify if carb is flooding, pull of fuel supply hose. insert a 5/16 fine thread bolt & clamp it for a line plug. Now start your motor. It should run several minutes before the carb. runs dry & kills it.
Doug | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Sounds like vthe carb is not right. If gas continues to run in after the engine dies you have a problem with the needle & seat. A piece of dirt may have got into it. Are you sure the float is not full of gas? Check the float level & make sure it is not hanging up on the sides of the bowl. You may have too much fuel pressure from the pump. If you have a vacuum gauge most of them have a pressure tester also. It should not be over 3-4 lbs. If it is a lean condition, make sure the accel. pump is working. It should squirt gas into the throat when you move the throttle from closed position.Make sure the power valve piston goes in the hole & nocks the ball off the seat.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Apr 2009 Posts: 232 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 232 | Old bald2, let me know if you ever figure out your problem. I've been fighting the same thing for months and still haven't figured mine out. | | | | | Joined: Aug 2009 Posts: 31 New Guy | | New Guy Joined: Aug 2009 Posts: 31 | desertdog,
You were right on with the jumper wire from the plus side of battery to plus side of the coil. Your idea worked even though I did not have ignition switch installed yet, just a remote push button starter unit turning the engine over. It started after the carb filled with gas and ran great even though I had just dynamically timed the engine, and estimated the fuel air adjustment on the one barrel carb. The fuel pump was a little balky, slow to pump fuel but it still started right up, idled well cold on choke and idled fine even when it warmed up and rev it off fast idle, to a very low idle.
Thanks for the help. It is greatly appreciated.
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