Briggs & Stratton Vanguard 05000 Manual page 70

3. Install screws. Torque screws to listed
value. SEE SECTION 14- ENGINE
SPECIFICATIONS.
Breather System
(260700, 261700)
NOTE: (260700, 261700)
breather tubes were used. The standard tube is
used when the air cleaner base mounts directly
on the carburetor. The long breather tube is used
when a spacer is used between the carburetor
and the air cleaner base.
Before Date Code 91120900
1. Remove air cleaner and intake manifold.
2. Remove breather valve cover and gasket
(A).
The breather valve assembly ([B] Fig. 29) is
mounted in the cylinder.
Fig. 29
If the fiber disc in the breather valve
assembly is stuck or binding:
• Replace the entire breather valve
assembly.
Refer to ([A] Fig. 30).
1. Check the breather valve assembly with a
wire gauge. It should
0.045 in. (1.14 MM.)
not enter the space between the fiber disc
and the valve assembly.
Two lengths of
CAUTION
: Do not force the gauge. The fiber
disc valve is held in place by a retainer that will
distort if pressure is applied to the disc.
Fig. 30
To replace breather valve assembly:
1. Install new disc valve and retainer
assembly. Torque screws to listed value
SEE SECTION 14- ENGINE
SPECIFICATIONS.
After Date Code 91120800
1. Remove air cleaner and intake manifold.
2. Remove cover and gasket.
This cover has an additional flapper valve ([A]
Fig. 31) built into it.
Fig. 31
1. Check the breather valve in the cover with
a 0.045 in. (1.14 MM.) wire gauge. It
should not enter the space between the
disc and the cove r body
([A] Fig. 32).
3
.
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