Tube, Spark Plug: Installation

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

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CAUTION:

The magnetic timing wheels (1) must not come in contact with magnets (pickup tools, trays, etc.) or any other strong magnetic field. This will destroy the timing wheels ability to correctly relay camshaft position to the camshaft position sensor.

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Remove the spark plug. Refer to SPARK PLUG, REMOVAL .
Install the lower half of Spark Plug Tube Installer (special tool #10255, Installer, Spark Plug Tube) (1) into the cylinder head and tighten to the proper specifications. Refer to TORQUE SPECIFICATIONS .

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Apply Mopar® Stud and Bearing Mount to the new spark plug tube approximately 3 mm (0.118 in.) from the end of the tube, in a 2 mm (0.078 in.) wide bead (1).

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Position the spark plug tube (3) on the top half of Spark Plug Tube Installer (special tool #10255, Installer, Spark Plug Tube) (2) and assemble the tool on the cylinder head. Make sure there are two thrust washers (4) installed.
CAUTION:
Do not overtighten the bolt (1). Overtightening can damage the cylinder head spark plug threads.
Tighten the bolt (1) to draw the spark plug tube into position. When the top half of the tool contacts the bottom half of the tool, the tube is installed.

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NOTE:
LH cylinder head cover shown, RH cylinder head cover similar.

CAUTION:
Spark plug torque is critical and must not exceed the specified value. Overtightening stretches the spark plug shell reducing its heat transfer capability resulting in possible catastrophic engine failure.
Install the spark plug. Refer to SPARK PLUG, INSTALLATION .
If required, install a new spark plug tube seal (2).
Install the cylinder head cover(s). Refer to COVER(S), CYLINDER HEAD, INSTALLATION .