Vanguard BIG BLOCK M540000, Repair Manual, Page: 105 / 168

MAG Bearing Oil Seal - Disassembly
1. Using Figure 132 as a reference, remove and discard oil
seal from crankcase bearing bore. Exercise care to avoid
scratching bearing bore during removal.
132
MAG Bearing Oil Seal - Assembly
1. Apply a thin film of clean engine oil to oil seal bore and
OD of new oil seal.
2. Place oil seal into the bearing bore.
3. Place the suitable oil seal driver on outside edge of oil
seal.
4. Center the oil seal driver under the ram.
5. Slowly apply pressure to oil seal driver until the oil seal is
flush to 0.040 in (0-1.0 mm) below the bearing bore lip.
Crankcase Cover
Governor Gear - Disassembly
1. Remove governor cup ( A , Figure 133) from governor
shaft ( B ).
133
2. Remove retaining ring ( C ) from groove in governor shaft.
Discard retaining ring.
3. Remove the governor gear/weight assembly ( D ).
4. Remove thrust washer ( E ) from governor shaft and
crankcase locating nub.
Governor Gear - Assembly
1. Install the thrust washer ( E , Figure 133) onto the
governor shaft and crankcase locating nub.
2. Install the governor gear/weight assembly ( D ) onto the
governor shaft ( B ).
3. Install new retaining ring ( C ) onto groove in governor
shaft.
4. Install governor cup ( A ) onto the governor shaft.
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