IDIBRONCO
IDIBRONCO
No idea.
Wes, mine was stuck solid with the crud. Yet my throttle moved just fine.As long as the throttle moves, the governor (minimax) moves. What sticks is the metering valve in the back, this is the fuel “gate” so to speak. It is controlled not by the sliding rod which is the minimax governor, but by the black linkage on the side which runs to the front of the pump and actuates on the flywheel. The idle spring of the minimax pushes on the end of the linkage to overide the flyweights in certain throttle conditions, and the fss arm on the solenoid slams the metering valve shut when the key is shut off. Usually they stick in the off position from sitting, the fss still will click with it in this position. The top cover is sealed by a square cut o ring, be sure it’s in its groove when you tighten the cover back on.
I'm not nearly the expert on this that Wes is, but you did say that you got fuel to all 8 injectors. Assuming that you're getting enough fuel volume of to the injectors (had to tell by just cranking) I'd guess that you don't have something sticking in the pump. If all else fails, you could try chaining this truck to another one and try pull starting it assuming that this is the 1990 with a ZF5 in your signature. At the shop I used to work at, one time we put a 6.9 complete with rebuilt pump and injectors in a 1984 or 85. We tried EVERYTING to get the thing to start. It had fuel to the injectors. We sprayed WD-40 into the intake, then we went to ether. Nothing. We would charge the batteries when they got low. Still nothing. Not one cylinder would hit. Finally, we got tired of that crap and chained it to our shop truck. The shop foreman sat in the customer's truck, I drove the shop truck. We weren't even out of the parking lot when the foreman dumped the clutch and the truck fired right up like it should have in the first place. It started fine every time after that. It started fine in the morning after sitting all night and being cold. The customer never had any starting issues after that.
You very well could be right. That's why I said that it's hard to tell by cranking.IDIBRONCO, I'm thinking that if the metering valve is sticking at any point in it's range of movement, it might let fuel through. Just not enough?
Timing that far off?
Or letting go at such low pressure that it is simply drowning the cylinders?Could the injectors be peeing out a stream that's not sufficiently atomized?
Agreed. Maybe it only takes three or four?But it seems so unlikely all eight of em are doing it.
Good point.Something as stupid as a bad connection on the ground strap between engine block and battery negative? Just drawing straws here...