Greetings all,
My FJ40 has been a project for the past few months and after getting the engine rebuilt and installed, and the rig on the road again I'm having an issue with it starting once it's warmed up.
Here are the components:
Brand new battery showing 12.7V and 14V+ with alternator charging.
Brand new coil that meets all manufacturers specs for resistance.
Brand new distributor. Electronic pickup type.
Brand new spark plug wires. (HT wire measures 5k ohms)
Brand New NGK plugs all spaced at 32-33 thousands.
Brand New GR starter.
Brand New Taiwan knockoff Aisan carburetor.
Timing is right on the BB.
Freshly adjusted valves. (To spec)
Vacuum is 19 psi at idle from brake booster hose.
No ignitor with the coil.
Brand New OEM fuel pump.
Brand New fuel filter.
Here is the problem:
6 pumps of the pedal, full choke and it fires right up and runs like a champ.
If I shut it off soon, I can start it back up relatively easily.
After being driven for 20 or 30 minutes and shutting down, it is impossible to get it to start again. I've tried the hot start routine with no luck.
Here are the symptoms:
Immediately upon shutdown the fuel bowl window shows half full.
After about 45 minutes, the fuel bowl window is empty, but you can still look down and see fuel flushing around inside, it just doesn't show in the window technically.
After about 45 minutes, the clear plastic fuel filter is also 25% filled with air. Normally it is 100% full fuel during operation. There is no heavy smell of fuel on shutdown like it's flooded.
If I leave the truck alone for about 45 minutes I can start it again. But not before then.
Right after shutdown the starter seems to have ample power to turn the engine, I will get a very occasional rump rump, but it will not fire.
I'll post a few pics of my setup and welcome any and all help.
My FJ40 has been a project for the past few months and after getting the engine rebuilt and installed, and the rig on the road again I'm having an issue with it starting once it's warmed up.
Here are the components:
Brand new battery showing 12.7V and 14V+ with alternator charging.
Brand new coil that meets all manufacturers specs for resistance.
Brand new distributor. Electronic pickup type.
Brand new spark plug wires. (HT wire measures 5k ohms)
Brand New NGK plugs all spaced at 32-33 thousands.
Brand New GR starter.
Brand New Taiwan knockoff Aisan carburetor.
Timing is right on the BB.
Freshly adjusted valves. (To spec)
Vacuum is 19 psi at idle from brake booster hose.
No ignitor with the coil.
Brand New OEM fuel pump.
Brand New fuel filter.
Here is the problem:
6 pumps of the pedal, full choke and it fires right up and runs like a champ.
If I shut it off soon, I can start it back up relatively easily.
After being driven for 20 or 30 minutes and shutting down, it is impossible to get it to start again. I've tried the hot start routine with no luck.
Here are the symptoms:
Immediately upon shutdown the fuel bowl window shows half full.
After about 45 minutes, the fuel bowl window is empty, but you can still look down and see fuel flushing around inside, it just doesn't show in the window technically.
After about 45 minutes, the clear plastic fuel filter is also 25% filled with air. Normally it is 100% full fuel during operation. There is no heavy smell of fuel on shutdown like it's flooded.
If I leave the truck alone for about 45 minutes I can start it again. But not before then.
Right after shutdown the starter seems to have ample power to turn the engine, I will get a very occasional rump rump, but it will not fire.
I'll post a few pics of my setup and welcome any and all help.