Crankcase, Crankshaft, Main Bearings & Flywheel

3.INSTALLATION

a)Install the flywheel on the crankshaft lining up the dowel holes.

b)Install the bolts and tab washers then tighten the bolts to the specified torque.

c)Mount a dial indicator on the crankcase and check that friction face run-out does not exceed 0.001 inch per 1-1/2 inches of radius. If run-out exceeds this figure remove the flywheel and check the mounting faces on the flywheel and check the mounting faces on the flywheel and crankshaft for burrs or foreign matter.

d)If run-out is within the figure in op. (c) bend up the tabs to secure the bolts. On current engine the locktabs are deleted.

C.CRANKSHAFT BEARINGS AND CRANKSHAFT

1.REMOVAL

a)Crankshaft removal required removal of engine from tractor.

b)Remove the clutch, flywheel.

c)Remove the timing cover.

d)Invert the engine.

e)Remove oil pan and adapter plate.

f)Remove the rear oil seal retainer by removing 7 cap screws (2-1).

g)Remove the bearing cap bolts (1-4). Then remove the bearing caps (2-4) and bearing inserts and identify them if them if they are to be re-used.

h)Lift the crankshaft from cylinder block and remove the bearing inserts.

2.INSPECTION AND REPAIR

a)Clean all parts in a suitable solvent and dry with compressed air.

b)Discard the front and rear oil seals. Discard all gaskets and remove any gasket material remaining on mating faces.

c)Check in the crankcase for sludge deposits. These should be removed and the crankcase thoroughly cleaned.

d)Use liquid gasket (loctite 584) on crankcase, adapter and oil pan joints.

3.THE BEARINGS AND CRANKCASE

1.Inspect the bearings for wear and evidence of uneven bearing support. If such evidence is present, examine the bearing caps and supporting surfaces of the crankcase for high spots and burrs.