Setting The Choke Plate Vacuum Adjustment; Adjustment Of Thermostatic Spring Lever Tongue; Vacuum Piston End Position; Checking The Setting - Saab V4 Service Manual

FUEl SYSTEM
Carburetor, FoMoCo
Setting the choke plate vacuum
adjustment
A. Carburetor without modulating choke
C8 GH-G
71 TW-JB
71 TW-JC
USA-CS
GH-H
1. Remove the thermostatic spring housing.
2. Depress the vacuum piston fully. Move the choke
plate towards closed position, until the tongue of the
thermostatic spring lever contacts the vacuum piston
lever. In this position, the opening of the choke plate
shall be
0.18-0.20
in
(4.5-5.0
mm). As gauge, a
drill may be used.
VACUUM PISTON END POSITION
CHECKING THE SETTING
Adjustment by bending the tongue of the thermo-
static spring lever.
Nov. 1973
ENGINE
ADJUSTMENT OF THERMOSTATIC SPRING
LEVER TONGUE
2
3. Fit the thermostatic spring housing. See to it that the
spring takes up the correct position.
4. Check position of step cam, by inserting a gauge.
See paragraph 2. In +his position, the mark on the
3rd catch of the step cam shall be exactly in front
of the stop dog of the throttle valve lever.
Adjustment by bending the link rod.
CHECKING POSITION OF STEP CAM
ADJUSTMENT OF LINK ROD
231-8