Subaru 1600 Service Manual page 147

2) Main Body
I) Body casting
Check for cracks or damage on
mating surfaces and damage on
threads.
2) Accelerating check balls
Check for damage and proper con·
tact against seat.
3) Accelerating discharge weight
Check for wear.
4) Accelerating pump and metering
rod springs
Check for rust or damage.
S) Mainjet
Check for damage on thread, groove
and seat and for wear on guide.
6) Low·speed jet tube
Check for deformation.
7) Accelerating pump diaphragm
Check for cracks or damage.
8) Accelerating pump seal
Check for wear or damage.
9) Accelerating pump delivery hose
Check for cracks or damage.
10) Lifter link
Check for wear or warpage.
11) Metering rod
Check for wear or bends.
3) Throttle Flange
1) Flange casting
Check for cracks or damage on
mating surfaces, damage on threads
and wear of throttle valve shaft holes.
2) Throttle valve
Check for deformation.
3) Throttle valve shaft
Check for wear, twist or damage to
threads.
4) Idle mixture adjusting screw
Check for damage on the tip of the
screw.
S) Springs
Check for permanent set or rust.
4)
Others
1) Washers
Check for deformation and damage.
2) Passages
Check for clogging.
3) Linkage
Check for wear of all moving parts.
FUEL SYSTEM
7. Assembly
1)
Precautions
I) Wash all parts with clean gasoline
before reassembly.
2) Use new gaskets, connector link
bushing and pump hose.
3) Use wrenches and screwdrivers of
proper size to prevent damaging the
parts.
2) Assembling Flange and Body
Casting
1) Install idle mixture screw and
spring in flange.
Fig.
4·58
A8·398
2) Position flange on body casting
with gasket between them and tighten
with four screws.
Fig.
4·59
A8·399
3) Assembling
Body
Casting
I) Install pump housing ASSY.
Pump housing assembly
Fig. 4·60
A8·400
2) Install pump hose.
Pump hose
Fig.
4-61
A8·401
3) Install main jet by using Main Jet
Driver (498167100).
1 Main jet
2 Main Jet Driver (498167100)
A8·402
Fig. 4·62
4) Install lifter link, metering rod
and spring.
1 Lifter link
2 Metering rod
3 Spring
Fig.
4·63
Pump discharge check ball
2 Weight
Fig.
4·64
A8-403
A8-404