18. Start 4 fasteners to secure valve covers to cylinder
heads. Alternately tighten fasteners to 70 lb-in (7.9 Nm)
using the sequence shown in Figure 167.
NOTE: The engine lifting brackets are secured by the valve
cover bolts. Make sure that the lifting brackets and any
auxiliary brackets, such as the electric fuel lift pump bracket
or any other equipped component bracketry, are installed
prior to torqueing the valve coverfasteners.
167
19. Install spark plugs into cylinder heads and finger tighten
until snug. Tighten spark plugs to 170 lb-in (19.2 Nm)
using a 5/8 inch spark plug wrench.
NOTE: Do not install spark plug wires onto spark plug
terminals at this time.
20. See SECTION 8 - INSTALL EXTERNAL ASSEMBLIES.
Crankcase Breather
1. Check crankcase breather as follows:
A. Gently blow air into breather hose (A, Figure 168) to
verify that there is no air flow through valve.
B. Apply vacuum or draw air out through breather hose
to verify that air flows freely through valve.
C. If air flow has no resistance when blowing or is
restricted under vacuum, the breatheris faulty.
168
2. Remove twohex flangescrews(B)to release breather
cover(C).
3. Remove outer baffle(D).
4. Remove the reed valve assembly(E)and O-ring(F).
5. Remove inner baffle(G)from the valve cover(H).
6. Check for loose rivets and for damage to the reed
valve(I), reed stop and housing. Replace components
if worn or damaged, or if the reed valve does not lay flat
over the valve cover opening.
128 vanguardpower.com
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