Jeep Engines - Oljeep

2.46L IN-LINE 4 (CAMSHAFT AND VALVE GEAR) 11713. Install the fan assembly and shroud.14. Install the drive belt(s) and tighten to the specified tension.15. Install the distributor, distributor cap and ignition wiresby rotating engine No. 1 cylinder piston until it is atTop Dead Center (TDC) in the compression stroke.16. Using a flat blade screwdriver, rotate the oil pump gearso that the gear slot on the oil pump shaft is slightlypast the three o’clock position (Figure 2-57).17. With the distributor cap removed, install the distributorwith the rotor located at the five o’clock position(Figure 2-58).18. When the distributor is fully engaged in its correctlocation, the rotor should be at the six o’clock position(Figure 2-59).Note: If the distributor is not installed correctly, or ifit is removed later, the complete installation proceduremust be repeated.19. Install the tappets using hydraulic valve tappet installer.20. Install the pushrods.21. Install the rocker arms and bridge and pivotassemblies. Tighten each of the two capscrews for eachbridge alternately one turn at a time to avoid damagingthe bridge.Note: Lubricate the hydraulic valve tappets and allvalve actuating components with Mopar Engine OilSupplement (EOS), or equivalent, during installation.The EOS must remain with the engine oil for at least1,609 km (I ,000 miles), but need not be drained untilthe next scheduled oil change.22. lnstall the cylinder head cover. Refer to CylinderHead Cover Installation, ‘Cylinder Head’ section ofthis chapter.23. Install the radiator. Connect the hoses and fill thecooling system to the specified level.24. Check the ignition timing and adjust as necessary.Measuring Cam Lobe Lift1.2.3.4.5.6.7.8.Remove the cylinder head cover. Refer to CylinderHead Cover Removul, ‘Cylinder Head’ section ofthis chapter.Remove the bridge and pivot assemblies and rockerarms. Alternately loosen each capscrew, one turn at atime, to avoid damaging the bridges. Disconnect thespark plug wire connectors and remove the spark plugs.Install a dial indicator with a piece of rubber tubingbetween the dial indicator plunger and the pushrod.Rotate the camshaft until the heel of the cam lobe(pushrod in the down position) is under the valvetappet. Set the dial indicator pointer at zero.Rotate the crankshaft until the pushrod is at itsmaximum upward position.Note the travel distance on the dial indicator. Refer to2.46L Engine Specifications, ‘Engine Assembly’section of this chapter, for the correct cam lobe lift.Repeat the procedure for each remaining cam lobe.Install the rocker arms and bridge and pivotassemblies. Alternately tighten the capscrews ateach bridge one turn at a time to avoid damagingthe bridges.9. Install the spark plugs and connect the wire connectors.IO. Install the cylinder head cover. Refer to CylinderHead Cover Installation, ‘Cylinder Head’ section ofthis chapter.