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DISASSEMBLY OF CRANKCASE
1) Remove valve casing (43) and plunger pipe (29B), drain oil.
2) Screw off gear cover (4) and bearing cover (14).
3) Remove connecting rod screws (24) and push the front of connecting rod forward as far as possible. Remove
back halves of connecting rods, note which position from which they came from.
4) Turning the crankshaft slightly, carefully hit on side of crankshaft (22) with a rubber mallet until crankshaft is
loose.
CAUTION: Do not bend the connecting rod shafts. Check cranshaft and connecting rod surfaces, shaft
seals and taper roller bearings.
REASSEMBLY
5) Using a soft tool, press in the outer bearing ring until the outer edge lines up with the outer edge of the
bearing hole (1).
6) Remove the bearing cover (14) together with the shaft seal (15) and o-ring (16). Fit crankshaft through
bearing hole on the opposite side.
7) Press in outer bearing (20) inwards with the bearing cover (14). Make sure that the crankshaft is in a vertical
position and turn it slowly so that the taper rollers of the bearings touch the edge of outer bearing ring.
8) Adjust axial bearing clearance to at least .004” and maximum at .006” by placing fitting discs (20A and/or
20B) under the bearing cover (14).
CAUTION: After assembly has been completed, the crankshaft should turn easily and with very
little clearance.
9) Bolt connecting rod halves together making sure they are replaced in the same position from which they
came. Tighten connecting rod screws to 264 in.-lbs.
REPAIR INSTRUCTIONS - LP350, LP400, LP450