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DEFENDER ENGINE OVERHAUL ROCKER 1 . 2. 3. 4. 5. 6 . Remove the five rocker shaft retaining bolts and withdraw the bearing caps, rockers, washers and springs from the shaft. Examine t h e rocker shaft for wear and discard if the bearing surface is wom, scored or pitted. Check also that the oilways are clear. Inspect the rockers and discard if the pads are worn. It is n o t permissible to grind pads in an attempt t o reclaim rockers. Renew the bushes if the clearance exceeds 0,127 (0.005 in). Press in replacements ensuring that the pre-drilled holes align with those in the rockers and machine the inside of the bushes to 18,018 The rocker arm and bush oil drillings are shown in the cross section illustration. Examine the tappet adjustment screws and is not worn or pitted and that t h e lubrication hole is clear. Assemble the rockers, bearing caps, new five rocker shaft retaining bolts. Push rods 1 . Examine the push rods and renew any that are bent or where the ball or cup ends are worn or pitted. 2. Fit the push rods to the engine ensuring that the ball-end locates properly in each ROCKER 1. Ensure that a new cap is fitted to each valve stem before fitting the rocker shaft. 2. Fit the rocker shaft t o the cylinder head ensuring that t h e retaining bolts and push rods the bolts to correct torque. 5 79 |