[rjr-rjr]

Thanks, Bob.

The exhaust system is on the opposite side of the engine as the fuel lines and fuel pump, and the fuel pump is mechanical, not electrical. I believe I replaced the fuel pump when I rebuilt the engine.

I will check a spark plug.

Ron

 

[rjr-rjr]

Engine Problem Update:

In summary, the rebuilt engine on my 1986 B2000 starts when cold.
Once it is shut off, or dies, it will not restart until at least an hour goes by.

I have verified that there is spark to all 4 spark plugs.
On the advise of a neighbor, I replaced the rubber fuel lines at the fuel tank.

When rebuilding the engine, I put on a new rebuilt carburetor from RodkAuto.
The new carb is leaking fuel at the accelerator pump shaft at the top front of the carb.
When running, there is a lot of dark smoke, so I suspect the carb is way too rich.

Is it possible that the float is not adjusted correctly, or the needle and set are leaking, thus causing the engine to be flooded once it shuts off and not restarting?

Or, does anyone have any other thought as to what my next step should be?

Thanks.
Ron

 

[rjr-rjr]

Update:
I tweaked the rebuilt carb and now the engine always starts, even immediately after shutting it off, and the fuel leak is fixed.

I tried to adjust the carb using my very old Sun exhaust gas analyzer. but all I got was inconsistent sporadic readings. Maybe the Sun gauge has bit the dust.
I really have to rev up the engine to get the truck to move from a standing start. Would that mean the carb is too lean?

The shop manual says to adjust the air/fuel mixture to obtain a certain dwell reading.
I don't see how an air/fuel mixture would have any direct relation to ignition.

Thanks.
Ron