ENGINE
3.60
CRANKSHAFT/COUNTER BALANCE/OIL PUMP INSTALLATION
Lubricate all bearings with clean engine oil before assembly.
Usethecrankshaft installationtoolkitPN2871283toprevent damagetothecrankshaft andmainbearingsduring
installation.
1. Install the crankshaft into the PTO side crankcase. Screw the threaded rod into the crankshaft until the
threads are engaged a minimum of one inch (25.4mm).
2. Install the collar, washer, and nut onto the threaded rod. Hold the crankshaft and tighten the nut to draw the
crankshaft into the main bearings until fully seated. Loosen the nut and remove the threaded rod from the
crankshaft.Ifremovalisdifficult,installtwonutsontheendofthethreadedrodandtightenagainsteachother.
3. Install the proper shim on the magneto end of the crankshaft.
4. Place the balancer shaft in the PTO crankcase aligning the timing marks on the crankshaft and balancer
gears. Install the proper shim washer on the shaft.
5. Inspect theoilpumpsealingsurfaceonthecrankcase. Applyalightfilm of engine oilto the surface andinstall
the oil pump.
NOTE: Do not use gasket sealer on the pump mating surfaces.
NOTE: After engine is assembled and machine is readied for field operation, oil pump MUST beprimed. Follow
oil pump priming procedure on page 3.13.
6. Align the drive gear with the drive pin on the pump shaft and install the gear. Be sure the gear is fully seated
and properly engaged.
7. Install the proper shim washer on the pump shaft.
CRANKCASE ASSEMBLY
1. Apply3Bond1215(P/N2871557)tothecrankcasematingsurfaces. Besure thealignment pins are inplace.
2. Set the crankcase in position carefully to avoid damaging the pump shaft seal, and install the magneto end
crankshaft installationtool(follow instructionsprovidedwithtoolkitPN2871283). Drawthecrankcasehalves
togetherbytighteningthenutonthetoolandtappinglightlyinthepumpshaftareawithasoftfacedhammerto
maintain alignment. Continually checkalignment of the cases during installation, closing thegapequally until
the surfaces are tightly seated.
3. Remove the tool.
4. Install the crankcase flange bolts and tighten in 3 steps following the pattern on page 3.2 to specified torque.
Crankcase Sealant:
PN 2871557
Oil Pump Bolt Torque:
6. ft. lbs. (.828 kg-m)
Crankcase Bolt Torque:
14 ft. lbs. (19-20 Nm)
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