A Ssem Bly - Toyota 5R 1969 Repair Manual

p ressed a ir, and
Wash the die-cast parts with a soft
brush, and wash and clean the c a r ­
bon deposits around the throttle valve.
N e v e r use a w ir e fo r cleaning the
jets.
A i r Horn
1. Check the air horn fo r cra c k s,
s c o r e s , damaged threads and worn
shaft b o re.
2. Check the choke valve fo r defor­
mation, and the
bend, twist and w e a r .
3. Check the angle between the cut
(1 ) of the coil housing
thermostat bimetal ( 2 ) .
A n gle specification: 84.25
If the angle
specification, make a new cut on
the housing.
F i g . 5-31 Checking
Thermostat Bimetal
N e v e r bend o r length the bimetal
with a pliers.
T h e embossed
coil housing does not indicate the
installing position but the installing
direction.
4. Check the p o w e r piston fo r w e a r
and for p ro p e r
housing b o re.
A ls o check the p o w e r piston spring
fo r w e a r and deformation.
5. Check the float fo r deformation and
rem ove the dirt.
choke shaft fo r
and the
at 25 C
(77 °C )
is not to the above
V0017
mark (3) on the
operation in the
F U E L S Y S T E M
defective tab, and also check for
w e a r o r
le v e r pin hole,
le v e r pin.
6. Check the needle valve and valve
seat fo r p r o p e r seating.
7. Check the
rust.
Main Body
1. Check the body fo r c r a c k s , dam­
age on the fitting s u r fa c e s , defec­
tive threads and jet fitting su rfaces.
2 . Check the jets fo r defective threads
and slot.
3. Check the p o w e r valve fo r p ro p e r
operation,
other defects.
4. Check the pump plunger fo r w e a r
of the sliding
leather and weak spring.
Flange
1. Check the flange fo r c r a c k s , dam­
age of the fitting surface and d e ­
fective threads, and also check fo r
w e a r of the throttle shaft b o re and
damage of the idle adjusting s c r e w
seat.
2. Check fo r w e a r and deformation
of the throttle v a l v e , and check fo r
w e a r , bend , twist and p r o p e r ope­
ration in the housing of the throttle
shaft..
3. Check the idle adjusting s c r e w fo r
damage of the threads and tapered
portion.

A ssem bly

B e fo r e assem bly, clean each part with
gasoline, and always replace the g a s ­
kets and the packings.
A ll sliding o r rotating portions should
be coated with engine oil, and be sure
to check fo r p ro p e r operation after
a ssem b ly.
- Carburetor
deformation of the float
bracket and the
strainer fo r clog and
defective threads and
surface, defective
5-17