Specifications

9
152
ENGINE BEARINGS
Mag Bearing – After 970430xx
Check
1. Check magneto bearing for damage. Check for
wear at several locations using plug gauge
#19219 (1) or appropriate measuring tools,
Fig. 5. If plug gauge is not available see reject
dimension in Section 13.
2. Replace bearing if damaged or worn.
Fig. 5
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Remove
1. Remove the oil seal.
2. Insert Bushing Driver #19450 (1) into bearing
from oil seal side, Fig. 6.
3. Place a reference mark (2) on driver to indicate
proper depth when installing new bearing.
Fig. 6
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4. Place cylinder on Cylinder Support #19227 with
large opening facing bearing.
5. Press out bearing with bushing driver (1), Fig. 7.
Install
1. Place cylinder on Cylinder Support #19227 with
large opening facing bearing, Fig. 7.
2. Align oil holes in bearing with oil holes in cylinder.
3. Press in new bearing to correct depth with
bushing driver (1).
Fig. 7
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4. Stake bearing in top notch (2) with 1/8” round
pin punch to prevent bearing from turning,
Fig. 8.
Fig. 8
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5. Install new oil seal with sealing lips facing in. Use
Cylinder Support #19227. Press oil seal until
flush with cylinder.
Mag Bearing – Before 970501xx
Check
1. Check magneto bearing for damage. Check for
wear at several locations using #19380 plug
gauge or appropriate measuring tools, Fig. 9. If
plug gauge is not available see reject dimension
in Section 13.
2. Replace bearing if damaged or worn.
Fig. 9
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