Procedure for air-timing when pump timing marks are "questionable" or missing.
A. Connect air pressure (30 to 100 PSI) to fuel discharge port #1. You might have to fabricate something to do this. I use the banjo-end from an old injector line hooked to an air-chuck.
B. Viewing the timing line on the pump-cam through the timing window, rotate the pump in normal direction of rotation (with pressurized air line hooked up).
C. When resistance is felt, the cam rollers inside the pump are just contacting the cam (getting ready to inject).
D. At this point, the two timing lines in the pump window should be in line. If not, one is incorrect.
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Today's Featured Article - Fasteners: The Nuts and Bolts of Nuts and Bolts - by Curtis Von Fange. The nuts and bolts of nuts and bolts is an interesting and essential piece of knowledge that applies to our older tractors. An improperly torqued capscrew on an engine head or a shear bolt that is too hard on the driving shaft of a bushog can create havoc and make an expensive and uncalled for repair. Let’s examine the purpose and design of these fasteners in order to ensure their proper use. Fasteners are probably one of the aspects of mechanics that is given the least amount of thought.
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