Lifter / Lash Adjuster: Service and Repair

Disassembly






1. Remove exhaust manifolds from cylinder head.
2. Remove rocker shafts with rocker arms. Bolts should be loosened in two or three steps.
3. Remove hydraulic valve lifters and lifter guide.






Hold hydraulic valve lifters with wire so that they will not drop from lifter guide.






4. Remove oil seal and camshaft.
5. Remove valve components with Tool.
Tool: kV10110600 (J33986)
Assembly
1. Install valve component parts. Always use new valve oil seal. Before installing valve oil seal, install inner valve spring seat.






- Install outer valve spring (uneven pitch type) with its narrow pitch side toward cylinder head side.
2. Install camshafts, locate plates and cylinder head rear covers.






- Set knock pin of camshaft at the top.
3. Install valve lifters into valve lifter guide.






- Assemble valve lifters to their original position and hold all valve lifters with wire to prevent lifters from falling off. After installing them, remove the wire.






4. Install rocker shafts with rocker arms. Tighten bolts gradually in two or three stages. Before tightening, be sure to set camshaft lobe at the position where lobe is not lifted.
(a) Set No. 1 piston at T.D.C. on its compression stroke and tighten rocker shaft bolts for No. 2, No. 4 and No. 6 cylinders.
(b) Set No.4 piston at T.D.C. on its compression stroke and tighten rocker shaft bolts for No. 1, No. 3 and No 5 cylinders.
5. Install exhaust manifold to cylinder head in reverse order of removal.