Wisconsin — Center Main Bearing (Roller Type) Removal and Installation - Obsolete

For these Wisconsin models: V-460D, V-461D, V-465D.

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Procedure

1. Remove oil coupling from crankshaft oil collet
2. Take out the adapter mounting screw and slip oil coupling out of collet
3. In reassembly: use new 'O' ring seals at both ends of coupling and on the shoulder extending into the crankcase
4. Lubricate 'O' rings for ease in assembly
5. Remove the center main bearing hanger to crankcase mounting screws and spacers
6. Tip case back on engine supports
7. Remove main bearing plate, gaskets and shims
8. Slip a length of pipe over the gear end of the crankshaft
9. With the assistance of another person, withdraw crankshaft with center bearing through the main bearing plate opening
10. For disassembly of roller bearing: loosen and back out bearing hanger capscrews approximately 1/2 inch
11. Tap capscrews heads lightly and alternately with a hammer to break cap away from hanger body
12. Do not pry cap and body apart
13. Remove capscrews and separate hanger and cap from bearing
14. Take off retaining ring from outer bearing race
15. Remove bearing halves and rollers from crankshaft
16. In reassembly: coat inside of bearing halves with a low melting point grease or petroleum jelly
17. Do not use a standard lubricating grease
18. Press 16 rollers into the grease of each bearing half
19. Assemble to crankshaft and clip together with retaining ring
20. Insert shouldered dowel pin into either hole of the bearing race
21. Place hanger body against bearing so the dowel slips into the dowel pin hole
22. Hold hanger body against bearing, place cap in position
23. Draw capscrews finger tight until the 2 dowels are just entering holes
24. With a hand wrench, alternately turn each screw 1/2 to 3/4 turns to evenly draw cap tight to hanger body
25. Torque capscrews to 40 foot pounds, alternately in 3 stages: 15, 30, and 40 ft/lbs
26. Pour a few squirts of oil in the hanger cap oil hole to help dissolve the bearing grease
27. In reassembly of crankshaft: rotate crankshaft oil collet so that slot engages with tab on bearing retainer plate
28. Mount main bearing plate, gaskets and shims
29. Torque capscrews to 32 foot pounds
30. Check end play and add or remove gaskets to give the necessary .002 to .004 inch movement
31. Install hanger capscrews with spacers finger tight
32. Position bearing hanger so that there is a minimum of .040 inch clearance between the sides of the bearing hanger and crankshaft cheeks
33. Tighten hanger to crankcase capscrews to 60 foot pounds torque

Source: manual:V465D_V41NID_V461D_Repair.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.