As far as carb leak that's a non-issue.
Gas is not getting thru the lines, either weak fuel pump or plugged lines further back.
1st test I would do:
Working OUTSIDE (and with a fire bottle if a 1st timer tho its safe if youre careful:
* Disconnect the coil + wires so the engine cant start or generate coil spark.
* Take the fuel line off the carb, and run it down into a coffee can or something.
* Have a friend crank over the engine.
* The fuel pump should start filling the can with gas. There are specs for this in the shop manual but its a good squirt of gas every revolution of the engine.
* If it passes this test, the problem is in the carb. There is a fuel filter right at the carb inlet nut and it could be clogged or the float needle stuck shut.
* If it wont pass this, the fuel pump is bad OR the lines are plugged but you don't know which.
Next, reconnect the fuel pump to the carb.
* Then, disconnect the INLET side of the fuel pump, put a hose on it and run this down into a gas can.
* Make sure things are steady and not hitting anything.
* Reconnect the coil and start the truck. It should run and the fuel pump will pull gas right out of the gas can on the ground and send it to the carb.
* This is the way I break in engines on the stand, works just fine.
If it does not pass this test, fuel pump is likely bad. What they call "Gasoline" today eats old fuel pumps, they are guaranteed to fail at some point.
* If it passes this test and engine stays running, the problem is further back toward the tank. Most common is the "sock" filter on the sender inside the tank gets plugged. Or, could be a plug in the line just letting a trickle of gas thru but not enough to run it steady.
Good luck and be careful, gasoline is very safe if youre careful but unforgiving if youre not!
Last edited by DeuceCoupe; 09/03/14 03:58 PM.
