Engine Mount Diaphragm Actuator Check

Disconnect vacuum hose from solenoid valve. Clean and oil diaphragm actuator rod, rear mount rotor lever, and lever linkage. Using a hand-held vacuum pump, apply about 9 in. Hg to actuator diaphragm. See Fig 1 . Actuator rod should move smoothly and diaphragm should hold vacuum. Replace as necessary. If engine mount is okay, go to next step.

Fig 1: Testing Rear Mount Diaphragm Actuator

Courtesy of AMERICAN HONDA MOTOR CO., INC.