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from the edge of the piston and note the measure- (5) Repeat the procedure with the rest of the cyl- inders. (6) Establish the thickness of the steel gasket for all four cylinder heads on the basis of the greatest CAUTION: Gaskets are to be installed DRY. DO NOT INSTALLATION (1) Remove the shop towels from the cylinder bores. Coat the bores with clean engine oil. (2) Install cylinder head alignment studs VM.1009. thickness, clean the block and head mating surfaces, place the engine cylinder head gasket over the align- (4) Place the engine cylinder head over the align- ment studs. CAUTION: New cylinder head bolts should be used. (5) Tighten the engine cylinder head bolts in sequence according to the following procedure (Fig. a. The threads and underside heads of the bolts should be lubricated. Use the cylinder head align- b. Ensure that the various clamps are installed correctly and the head gasket remains in it’s proper (6) Install the intake and exhaust manifolds with a new gasket, partially tightening the nuts to a max- (7) Then, tighten the 14mm bolts with special tool VM.1019 in the following manner: (8) 1st Phase: Tightening Head Bolts (Fig. 37). Central bolts (A-L): Tighten all bolts, starting with Fig. 37 Engine Cylinder Head Bolt Tightening Sequence Fig. 36 Piston Protrusion Chart Measured dimension (mm) . . . . . . . . . 0.53 - 0.62 Cyl. head gasket thickness (mm) . . . . . 1.41 Piston clearance (mm). . . . . . . . . . . . . 0.80 - 0.89 Measured dimension (mm) . . . . . . . . . 0.63-0.72 Cyl. head gasket thickness (mm) . . . . . 1.51 Piston clearance (mm). . . . . . . . . . . . . 0.80-0.89 Measured dimension (mm) . . . . . . . . . 0.73-0.82 Cyl. head gasket thickness (mm) . . . . . 1.61 Piston clearance (mm). . . . . . . . . . . . . 0.80-0.89 9 - 28 ENGINE XJ REMOVAL AND INSTALLATION (Continued) 2000 JEEP CHEROKEE |