D6C 76A fuel issue?

What's the oil pressure like? That D333 engine has a rack limiter piston in the governor that will not let the engine speed up until the oil pressure comes up.

Also possible that the lines between the tank and the lift pump are clogged or loose in the ferrules and letting it suck air. Had a lot of trouble with our grader from about that time. The lines were just not sealing up tight any more. Didn't leak a lot of fuel, but was awful to prime it up and it would loose prime anytime it sat.

Thanks ccjersey for the reply. I don't know what the oil pressure reading was the last time it ran. Will be putting the new filters in tomorrow. With the amount of crud I found in the primary filter cup, I wouldn't be surprised that the line is choked up. I had taken the fuel filter housing, fuel transfer pump off engine and cleaned everything up. Will be looking at oil pressure if I get it cranked. Also planning on draining all fuel out of tank, blowing out fuel lines, and refiling with fresh fuel.
Thanks again for the help!
Kenneth

[quote="mustang"]Thanks ccjersey for the reply. I don't know what the oil pressure reading was the last time it ran. Will be putting the new filters in tomorrow. With the amount of crud I found in the primary filter cup, I wouldn't be surprised that the line is choked up. I had taken the fuel filter housing, fuel transfer pump off engine and cleaned everything up. Will be looking at oil pressure if I get it cranked. Also planning on draining all fuel out of tank, blowing out fuel lines, and refiling with fresh fuel.
Thanks again for the help!
Kenneth[/quote]

What's the fuel pressure reading?

Hi Team,
it is not unknown for the limiter mentioned to not retract, even when the oil pressure has come up, due to the components being worn in there and a lot of pressure has been applied to the retraction plunger by heaving the gov. control lever to the run position hard against the plunger.
Usually if you can get the engine to start, back the gov. lever off a tad, and then open it up to required gov. setting. This eases the load on the plunger and it will usually retract.

On reco'ed engines we used to pre lube the engines with a pressure pot filled with engine oil and connected to the engine oil system somewhere convenient. This would get the piston retracted to get to full open gov. setting to bleed the fuel injection system.

From memory, another place that can foul things up is in the canister of the de-accelerating mechanism.
If the canister fills with dust/mud it cannot extend/retract.
Also check for seizures in the bushings of the bellcrank lever and the cross shaft in/on the bracket that holds the gov. control crossover linkages, that has the circular housing with the brake detent for the gov. linkage holding device.
Cheers,
Eddie B.