The manifolds can all be immersed in parts cleaning solvent. Carbon buildup in the exhaust manifolds can be removed with carb cleaner, wire brushing, or glass beading. Check the manifold flange and gasket surfaces with a straightedge. Replace any manifold with warped, distorted surfaces. Do not machine either type manifold in an attempt to salvage… Read More »
Clean the pan and covers in cleaning solvent. Use carb cleaner on stubborn deposits if necessary. Inspect rocker covers and oil pan for cracks, sealing surface distortion, and dents. Repair minor dents. Replace either cover if damaged (Figure 2-150). Inspect the oil pan for cracks, sealing surface distortion, dents, and damaged threads (Figure 2-151). Small… Read More »
Flush the engine oil cooler whenever a component failure contaminates the oil with metal or similar particles. The oil and filter should also be changed. Cooler Flushing Procedure 1. Remove oil cooler lines at engine and allow oil to drain into suitable container. 2. With one line positioned in container, introduce air pressure (no more… Read More »
Oil Filter Adapter Inspect the adapter fitting and bolt for damaged threads (Figure 2-149). Replace either fitting if damaged. Inspect the filter adapter for stripped or crossed threads, cracks, and chipped sealing surfaces. Replace the adapter if damaged. Remove and discard the old O-rings and gasket from the bolts (Figure 2-149). Install new O-rings and… Read More »
The oil pump can be disassembled for inspection if desired but not overhauled. The pump is serviced only as a complete assembly. Individual pump parts are not available. The pump shaft, pickup tube clamp and bolt, and pump mounting stud are all available as service parts (Figure 2-148). Replace the oil pump under the following… Read More »
The flywheel can be immersed in cleaning solvent. However, the torsional damper should only be wiped clean with a cloth wetted with parts cleaner. The damper has a rubber composite insulator (Figure 2-146). This insulator can be damaged by immersion in some cleaning solutions. Inspect the damper insulator ring (Figure 2-146). Replace the damper if… Read More »
Clean the rocker arms, shafts, pushrods, guides, clamps, and lifters in parts cleaning solvent. Immerse the lifters in solvent and use a pushrod to stroke the lifter plunger. Replace any lifter that is collapsed, or if fluid cannot be pumped out oil hole when plunger is stroked. Inspect the lifter roller and bearings. Replace any… Read More »
1. Scuff sand all gasket surfaces with 180 grit paper. 2. Clean the valvetrain parts and cylinder head with solvent and dry with compressed air. 3. Install new freeze plugs in heads if necessary. Apply Permatex #2 or high temp adhesive/sealer to edges of plugs before installation. Be sure plugs are properly seated. 4. Install… Read More »
Clean the cylinder heads and valve components in parts cleaning solvent. Use carb cleaner and a wire brush to remove stubborn carbon deposits on the heads valves and prechambers. Check flatness of intake/exhaust manifold seating surfaces with straightedge. Surfaces must be flat to within 0.006 in. (0.15 mm). Check cylinder head flatness with straightedge and… Read More »
1. Remove glow plugs and injectors if not previously removed. 2. Remove temperature sender from left side head (Figure 2-132). 3. Clean valve faces with wire brush and measure amount valves are recessed in head with dial indicator. Intake valves should be recessed approximately 0.001 in. (0.034 mm) and exhaust valves approximately 0.002 in. (0.048… Read More »