Jeep Cherokee (XJ): Electrically heated systems

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Valve timing. Valve service. Piston fitting
Valve timing Disconnect the spark plug wires and remove the spark plugs. Remove the engine cylinder head cover. Remove the capscrews, bridge and pivot assembly, and rocker arms from above the No.1 cylinder. Alternately loosen each capscrew, one turn at a time, to avoid damaging the bridg ...