10.07.2015 Views

Jeep Engines - Oljeep

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--n il192 MOPAR PERFORMANCE PARTSNot over 1/4" larger than valve head114" MaximumFigure 4 - 29m Backcut Valve\ RemoveBACKCUT VALVECenterlinefl Open Up Throat Area 1SeatArea EnlargedFigure 4 - 31Valve TimingFigure 4 - 301.2.3.4.Disconnect spark plug wires and remove spark plugs.Remove the cylinder head cover. Refer to CylinderHead Cover Removal, 'Cylinder Head' section of thischapter, for the procedure.Remove the capscrews, bridge and pivot assembly, androcker arms from above the No. 1 cylinder. Alternatelyloosen each capscrew one turn at a time to avoiddamaging the bridge.Rotate the crankshaft until the No. 6 piston is at topdead center (TDC) on the compression stroke.

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