How do you time an Allis Chalmers 200?

Answer 1

On the side of the injection pump, there is a small rectangular piece held on my 2 screws. Take this off (you will lose a little fuel, but not too much). Now, take off the plate on the timing cover of the engine that is right in front of the injection pump gear. This will give you access to the gear that is bolted to the pump shaft. Using the numbers stamped on the engine's pulley, line it up to the correct timing setting (this depends on the type of pump you have, whether it has automatic advance or not, and can be determined from the model number of the Roosa Master pump). Now going back to the window you removed the plate from on the injection pump, you should see two lines, one is fixed, one which turns with the pump shaft. Loosen the bolts on the pump gear (or even remove the gear depending on how much of an adjustment you need to make) and line these two marks up, tighten the bolts down on the gear, and reassemble. You may need to rebleed the fuel system after doing this.