Posted by Tom Fleming on July 31, 2008 at 17:36:56 from (209.195.155.84):
Thanks for the replies. I do have one more question on the timing and advance.
At full throttle and full advance with no load, there is an occasional "miss", and pop. When I am at full throttle, and at about 3/4 advance, the engine purrs like a kitten. I have not been able to do a load test at full advance yet to see if the engine smooths out under load.
I have the timing set so that the center of the rotor is pointed at number 1 on the cap for TDC. However, there are "leads" on the rotor. At TDC should the timing be set to the beginning of the rotor contact, or to the center of the rotor contact. Just to clarify, the brass contact on the rotor as you know is a "T", so do I set the timing for the center, or the beginning of the lead. I know we are only talking 1 bolt hole on the coupler, but that can make a difference when trying to get full power.
I am also debating on the gasoline. I run 89 octane in all my vehicles, so I just fill my gas can with that when I fill up my truck. Should I be running 87 in this or is the 89 ok, or am I splitting hairs.
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Today's Featured Article - Tractor Profile: Allis-Chalmers WD45 (Gas Version) - by Staff. Beginning production in 1953, the WD45 had the same general look as the WD tractor which was produced earlier - but was much more powerful. This was due to the new 4-cylinder "Power Crater" gasoline engine with a 4 x 4-1/2 inch bore and stroke. Some people feel this was one of the most significant tractors offered by Allis-Chalmers in those days. Nothing in its weight or power class could match its performance. In 1954 they began offering the WD45 with the new "Snap-Coupler&quo
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