Injection Pump Timing

[Dan Markeson]

I searched the site with tricky terms like "timing", and "injection pump timing" to no avail. When I had the engine on the floor, I set it to TDC, pushed in the pin and then pulled the plug on the back of the fuel pump. Looking me in the eye was a little spade. The plug has a little plastic device you pull out, turn around and plug back in leaving a fork which apparently mates with the little spade. I never went any farther, but now I'm faced with re-timing my engine. If I would have pulled the TDC pin back out and rolled the crank a little further would that spade on the pump have gone away? I'm assuming so. If I've got it right, when you set your engine to TDC, the pump, if properly timed will put the little spade in the window and that setting would be 13 degrees of advance. If your timing is way off, the spade will be nowhere to be seen. To re-time to stock you'd go to TDC for reference, then move which ever direction necessary to locate the spade, secure it with the fork in the pump plug, pull the gear and move the crank back to TDC and secure the fuel pump gear. Any amount of advance would be initiated at 13 degrees of advance. Am I way off? I once read the service manual's procedure. You can have it. I've watched it done once but at the time didn't have a clue about what was what.

 

[BigYellowIron]

Sounds like you have the right idea.

thats the way that i would do it.



Adam