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Distributor Diaphragm Operation

Remove distributor cap and rotor dust cover. Apply vacuum to advance mechanism and note that mechanism operates properly as vacuum is applied.

Fig 1: 1979 Cressida Spark Control
G09350736Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: 1979 Land Cruiser Spark Control
G09350737Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: 1979 Supra Spark Control
G09350738Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002