Saab 95 1967, Руководство по обслуживанию

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DISASSEMBLY
1. . . .
Remove the retalnlng rlng from the control rod be-
Bween the automatic choke and the throttle vlave.
etach the Ilnk from the throttle valve arm.
2. Unscrew and lift off the float chamber cover. Re-
move the gasket.
3. Screw out the needle valve.
4. Take the float out of the float chamber
5. Remove the plug from the float chamber and remove
the jet.
6. Pull off the acceleration pump jet (over the accelera-
tion pump).
2. Screw off the idling jet and the emulsion tube jet.
Screw off the acceleration pump cover and check
the diaphragm.
9. Screw off the idling mixture air-regulating screw.
10. Carburetor 32 PDSlT-4:
Remove the intermediate flange valve.
REASSEMBLY
NOTE! Clean all passages and jets with a blast of com-
pressed air. Change all parts included in the gasket and
repair kit.
1. Install the spring, diaphragm and cover for the ac-
celeration pump.
2 Insert the acceleration pump jet.
3. Screw in the idling jet and the emulsion tube jet.
4. Advance the idling mixture air-regulating screw
carefully until it bottoms out then back it off one
complete turn.
5. Insert the float.
6. Screw the needle valve with original gasket into the
float chamber cover.
7. Install a new cover gasket.
8. Put on the float chamber cover and replace the re-
taining screws.
9. Pass the rod between the automatic choke and the
throttle valve into the throttle valve arm and secure
with the retaining ring.
10. Set the valve arm in the semi-open position and at
the same time fully close the choke valve with the
fingers. Meanwhile, hold the valve arm firmly and
make sure that the throttle valve is ajar. The clear-
ance between the valve and the flange must be
0.032 in. (0.8 mm). This can be checked with a
wire or drill bit of the same diameter. To adjust
the clearance, slacken the nuts on the linkage rod
for the fastidling system and then adjust the rod so
that the valve takes up the correct position. Then re-
tighten the rod and lock it in the correct DOSltIOn.
For final adjustment, see under "Adjustment of
automatic choke”.
11. Carburetor 32 PDSIT-4:
Fit the intermediate flange valve.
no!
INSTALLATION
I. Carburetor 32 PDSlT—4Z
Fit the intermediate flange, with new gaskets.
2. Install a new gasket, put on the carburetor and tighten
it up evenly. .
Reconnect the fuel and vacuum Ilnes.
Reconnect the throttle control.
Reconnect the coolant hoses and tighten the hose
clamps.
6.
Refill the cooling system and bleed the system.
7. Install the air cleaner.
CHECKING AND ADJUSTMENT OF FLOAT LEVEL
The fuel level in the float chamber should be measured
while the engine is idling and should be nominally 0.59
in. i 0.04 in. (15 i1 mm).
The level is decided by the thickness of the float valve
sealing washer. If the level is too high, a thicker washer
should be fitted and conversely a thinner washer must
be fitted to adjust too low a level. The float level is mea~
sured from the top of the float chamber cover to the fuel
level. Measuring can appropriately be carried out with tool
78 60 984 which is connected at the site of the jet plug
in the float chamber.
IDLING ADJUSTMENT
NOTE! The idling speed must be adjusted when the en-
gine has reached the normal working temperature and
the headlights switched on. Depending on the mileage,
the adjustment should be preceded by a check of the
spark plug electrode gap, the ignition setting and the
valve play.
1. Reduce the engine speed so that the engine runs as
slowly as possible or at max. 500 rev/ min.
2. Adjust the volume control screw until the engine runs
as smoothly as possible.
3. Switch on the headlights (high beam) and increase
the speed to 800—900 rev/min with the idle adjusting
screw.
SAM m 197,