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I cleared a brain fart out last night and remembered that I had moved the rear of the primary inbound a couple of millimeters for the NEB wet clutch experiment. I'm going to move the rear of the primary back out a couple of millimeters to theoretically give enough room for drum expansion with the longer 890 length belt. Still I wouldn't suggest using the longer 890 belt on a P11. I think the 880 is a safer length to work with as well as a full perimeter spacer.With a 1/8" spacer the dowels in the inner primary just barely protrude enough to align the outer primary. If you need a thicker spacer the dowels should be lengthened to accommodate. I may add 1/8" to the two dowels.My rotor does not need to be spaced inbound with the addition of the 1/8" spacer. The engine pully lines up exactly where the single row sprocket and spacer lined up on the crank shaft without the outer pulley guard. With the pulley guard installed the rotor ends up out where it should be inside the stator with the added 1/8" spacer. It might be noteworthy, but I do not have the stock crank shaft in this motor, so measurements related to rotor position may vary slightly with the stock P11 crank.
I cleared a brain fart out last night and remembered that I had moved the rear of the primary inbound a couple of millimeters for the NEB wet clutch experiment. I'm going to move the rear of the primary back out a couple of millimeters to theoretically give enough room for drum expansion with the longer 890 length belt. Still I wouldn't suggest using the longer 890 belt on a P11. I think the 880 is a safer length to work with as well as a full perimeter spacer.
With a 1/8" spacer the dowels in the inner primary just barely protrude enough to align the outer primary. If you need a thicker spacer the dowels should be lengthened to accommodate. I may add 1/8" to the two dowels.
My rotor does not need to be spaced inbound with the addition of the 1/8" spacer. The engine pully lines up exactly where the single row sprocket and spacer lined up on the crank shaft without the outer pulley guard. With the pulley guard installed the rotor ends up out where it should be inside the stator with the added 1/8" spacer. It might be noteworthy, but I do not have the stock crank shaft in this motor, so measurements related to rotor position may vary slightly with the stock P11 crank.
