5.3L Engine Rebuild Page 18

The 213-3521 Knock Sensors are installed
Figure 69

Figure 69. The 213-3521 Ignition Knock (Detonation) Sensors are installed. Use a 22mm deep socket, and torque them to 18ft lbs. They are both the same, so it makes no difference which hole you put them in.

Installing the 12601822 Knock Sensor Wire Harness
Figure 70

Figure 70. Attach the connectors from the 12601822 Knock Sensor Wire Harness to the knock sensors.

Installing knock sensor plugs
Figure 71

Figure 71. Insert the rubber plugs. Some builders choose to put a small bead of silicone sealant around the outside of the plugs to act as a dam preventing liquid from getting in the openings. We have chosen not to do so for aesthetic reasons.

Final rocker arm installs
Figure 72

Figure 72. Install the 4854-8 Flat 5/16 Guide Plates and 4554-16 Hi-Tech 3/8" Rocker Studs for the 1675-16 1.8 Ultra Pro Magnum Rocker Arms. Use a small dab of loctite on the studs, you do not want them to back out. Torque the studs to 22ft lbs.

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