Ford 3000 Injection Pump Timing

Thanks,
Rick

Rod

Thanks for the help. I already have the cover off of the pumping gear. The timing can be changed by loosening three bolts and rotating the gear. I plan to do this after work today. I still haven't found or received any good info on exactly where the arrow at the flywheel access cover is supposed to be located, so I am going to assume about mid position in the hole and set that at 19 degrees BTDC. I will then align the marks for the pump timing. I will also assume that having the timing 7 degrees off is not a satifactory condition.
Knowing and seeing some of the other work that has been done on the tractor, I believe the timing was set like that, although it's hard to say why.

Thanks,

Rick

I think if you look at the rear of the pump though there should be a slot in the shaft and I think another slot in the pump housing, or a mark. Something like that. I think the book shows a pointer that's supposed to sit in the slot in the shaft and then point at the mark. When they are aligned you look at the timing marks on the flywheel to get the number of degrees of advance. Adjust the gear slots to give the correct number of degrees.... and if you can't get it right then you'll have to move the gear one tooth. It's possible that somebody was looking at the wrong service manual when they set the timing on yours as well. I believe the 7000 was to be set at 17 or 19 degrees while the 3000 and 5000 were probably at 25-27 degrees. I forget the exact number without looking at the spec but I know that the turbo engines had less advance (7000)... so somebody may have erronously had that number stuck in their head or looked at the wrong spec in the book. If you get it set right you should see some boost in power.

Rod

Yes on your assumption. You should be able to scrape paint/rust off the sheet metal cover and see the mark.

Funny on what you say about timing. I have had Simms, CAV, and RoosaMaster pumps on different tractors. I never set the timing on the Simms, but did on the others. Wouldn't think it would be all that different. On the others, there were marks on the pump body, and on the surface where the pump mounted. You lined up the pump mark with the 0, longest, center mark on the mounting surface. Apparently the timing advance (if any) is built into the location of this mark.

I'll be going out to the shop after while and I'll dig out the manuals and dig into this. If I find anything useful to tell you, I will.

Mark

OK, that's another part of the problem, there is no cover over the timing hole, just a oval shaped hole and a small round hole below it where it looks like there used to be a screw or something.

In the shop manual, the procedure for timing the CAV injection pumps on the 3000s that use them is just as you describe it above. The Simms, however involves setting the timing to an advance of 19 degrees by setting the mysterious arrow to the 19 degree mark on the flywheel and then lining up the marks found on the gears inside the pump timing cover.

Thanks for looking this up for me.

Rick

Mark

The injectors are out at the present time and reconnected to the pump outlet. All three are spraying nice patterns of fuel out of four ports, so the fuel is getting there OK. It quite likely was some sort of blockage that has since relocated. The guy I bought it from said a mechanic friend of his worked on it and told him the injection pump had gone bad. Funny thing was, his friend had hooked up an electric pump to push the fuel to the injection pump because he thought the pick-up pump might be bad. I have to agree, jumping time seems very unlikely, but it sure appears to be out by about 7 degrees. I just have to know that I'm reading it right, since I can't find the arrow at the flywheel timimg hole.

Thanks,

Rick