Vanguard OHV V-Twin User Manual page 147

Model 380000
Remove two screws. Separate breather assembly
from valve cover, Fig. 10.
Fig. 10
Checking Breather
1. Remove two screws, reed stop and reed valve.
2. Place reed valve on flat surface.
3. Check reed valve for distortion with feeler
gauge, Fig. 11.
Replace reed valve if the maximum distortion
exceeds 0.010" (0.25 mm).
Fig. 11
Check reed stop height in the following manner.
4. While holding mounting surface of reed stop on
flat surface, use the following drills to check reed
stop height, Fig. 12.
5. Use #29 drill as GO gauge.
6. Use #24 drill as NO-GO gauge.
Replace reed stop if not to specification.
146
Fig. 12
Install Breather
1. Assemble reed valve and reed stop to breather
body, Fig. 13. Tighten screws securely.
NOTE: Holes in reed and reed stop are offset.
Assemble so that holes are aligned.
2. Assemble baffle and cover to valve cover with
new gasket.
3. Torque screws to 30 in. lbs. (3 Nm).
Fig. 13
Inspect Breather Tube
Check breather tube(s) (1) for cracks, holes or
hardening, Fig. 14. Replace if damaged.
Fig. 14
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