When installing the RPM sensor, turn the rpm sensor (Item 1) [Figure 60-170-1] in until it makes contact with the engine flywheel.

Turn the jam nut (Item 2) [Figure 60-170-1] until it contacts the flywheel housing. The jam nut should not be tightened, it needs to turn with the RPM sensor when the sensor is turned back out for adjustment.

Turn the RPM sensor and the jam nut out from the flywheel. Set a clearance of 0.050 in. (1,27 mm) between the jam nut and the housing with a feeler gauge (Item 1) [Figure 60-160-2].

NOTE: New RPM sensors have a plastic tip which is used as a gauge during installation. The plastic tip is designed to come off after the engine is started.

Tighten the jam nut (Item 2) [Figure 60-160-2] to 12 – 17 ft.-lb. (16 – 23 N•m) torque, while holding the sensor from turning.


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