tc40d with no power

[jinman]

What about the fuel cut off solenoid not fully opening the injector inlet? I'm not sure I understand what or how that is? or how to check it.

Of all the possible problems, that is probably the least likely, but the easiest to check. The only reason I mentioned it a all is that your problems seem so strange that it might be something remote. I've attached a picture of the solenoid. It's that shiny round cylinder right behind the injector pump. It has one spade connector to remove and then you can unscrew it. The knurled surface means only hand tight, but you might have to grip it with pliers to get it started. Be very careful because you don't want to squeeze it too hard. Once you have it out, just hook up the wire and turn on the key with the range lever in neutral and the parking brake set, the plunger should fully retract. Note: the body has to be in contact with ground to operate.

Also in this picture down near the lower right corner, you can see the bracket I illustrated in my last post with the governor shaft phased properly.

I'm attaching a photo of the solenoid completely removed too.

 

[sonnyc]

Ok, I am sorry for the late response, I have been away for a few days.
I have checked the solenoid, checked fuel pressure to the injection pump to see if loosing pressure, and have take'n the airfilter and hoses off and everything seems good. Except still no power and slow reving.
Does anyone know how the injection pump is timed? does it run directly off the camshaft as it looks like it does on the parts breakdown in mesicks? Also I could not find the Governor assembly on the parts breakdown. How does it work? Internally that is. I know they generally work centrificully but I don't see any info on this part.

Thanks again all of you. you truly are a wealth of knowledge.
s.c.

 

[Eagleview]

So does that mean you have not checked the Banjo bolt/s for a blocked gauze filter ?

 

[J_J]

You said you replaced the fluid. Did you replace it with the same fluid type?

 

[sonnyc]

Sorry, yes I checked the banjo bolts, but I did not find any gauze filter on any of them. Do you know which ones should have them?
And as far as the fluid goes, yes it was replaced with all the same fluid.

 

[sonnyc]

I'm kind of thinking it is either timing of the injection pump or governor. It starts right up, which I haven't ever seen when the injection pump is weak, and or when It lacks fuel. I checked the fuel pressure at the injection pump with it running and it was just about 4psi at idle and reved up. So it's staying consistent not dropping out. :/

 

[J_J]

I had a similar problem years ago. The engine would not rev up and had little power. Did all the things you guys had done. Then one day, I thought why not look through the air tube running from the front to the large air filter. There was a bend in the tube, so I could not see, so I used a wire and ran it in and snagged something. It was a rats nest almost totally clogging the tube.. Everything went back to normal.

Your injection pump pressure does not seem correct.

 

[sonnyc]

I have checked the air intake system. I even disconnected the airfilter assembly from the intake manifold. All good. And it ran the same. It will rev up just not like I think it should. It seems a bit sluggish getting to top rpm. Also that psi Is pre injection pump. Just what the supply pump pumps. Don't know what it should be tho.

 

[jinman]

Sonnyc, here are the Repair Manual pages about the governor. I doubt this is your problem, but I will leave it to you to decide for sure.

 

[banjodunn]

G'day it is extremely unlikely that the inj pump timing would have altered unless you have had the pump out or broken teeth/drive pin on the pump diesels unlike gas do not need timing altered every service i have seen pumps on engines that have done in excess of 10,000 hrs and never even had the nuts loosened on the pump.


Jon