Subaru 1600 Service Manual page 137

Check for wear and twist.
4) Power piston
Check for correct operation.
5) Float
Check for deformation, damage of
seat and stopper, and wear of Ooat
shaft hole.
6) Needle valve
Check for damage and correct con·
tact against valve seat.
7) Filter
Check for deformation and damage.
8) Air bleed
Check for damage on thread and
groove.
9) Choke spring
Check for rust and deterioration.
10) Accelerating pump ,<over
Check for crack and damage.
2) Float Chamber
I) Float chamber body
Check for cracks, damage on
mating surfaces, damage on threads,
wear of auxiliary valve shaft hole, and
wear of accelerating pump cylinder.
2) Injector weight
Check for damage and proper con·
tact against seat.
3) Ball
Check for damage.
4) Piston return spring
Check for rust.
5) Jet
Check for damage on thread and
groove.
6) Emulsion tube
Check for deformation.
7) Accelerating pump piston
Check for damage and wear.
8) Power valve
Check for correct operation and
damage on thread and groove.
3) Throttle Chamber
I) Throttle chamber body
Check for cracks, damage on
mating surfaces. wear of throttle valve
shaft hole and damage on thread.
2) Throttle valve
Check for deformation.
3) Throttle valve shaft
Check for wear, twist, and damage
on thread.
FUEL SYSTEM
4) Idle mixture adjusting screw
Check for damage on tip of the
screw.
AS-305
Fig. 4·17 Idle mixture adjusting screw
5) Springs
Check for permanent set and rust.
4) Others
1) Washer
Check for deformation and damage_
2) Linkage
Check for wear of each sliding part.
3) Passages
Check for dogging.
6. Assembly
1) Precautions
1) Wash all parts with clean gasoline
before reassembly.
2)
Use new gaskets, lock plate and
cotter pins.
3)
Use wrenches and screwdrivers of
proper size to prevent damaging the
parts.
2) Assembling Choke Chamber
1) Install switch vent solenoid valve
with gasket and three screw & washer
assemblies.
1 Switch vent solenoid valve
2 Screw
Fig. 4·18
4-15
AS·297
2) Install primary and secondary
slow air bleeds.
I Primary slow air bleed AS-296
2
Secondary slow air bleed
Fig.
4·19
3)
Install needle valve with
10
mm
washer.
II
Needle valve
AS-496
Fig. 4·20
4) Install float with float shaft, and
adjust the float level.
I Float shaft
2 Float
Fig. 4·21
A8-294