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Quarter Master Twin Disc Clutch Set Proper Air
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Setting the proper air gap (between the face of the bearing and the pressure plate’s fingers) is critical. Calculations for determining air gap must be made, and Addiction Motorsports owner Eddie Rios stepped in to help for this segment of the installation. After measuring the amount of crankshaft flange that pokes out of the engine block and noting it as Measurement A, Eddie and Cody use a straightedge and a 12-inch vernier caliper to measure the depth from the face of the bellhousing to the face of the bearing. The bearing must be fully compressed when this measurement is taken, and the thickness of the straightedge (0.100-inch in our case) must be subtracted as well. The result of this calculation is Measurement B.
