Saab 95 1967, Service Manual

Page: 106 / 610

Deceleration system, cars for the USA as from model
1970 and cars for Sweden model 1976 and 1977
The deceleration system comprises a system of passages
inside the carburetor, and a deceleration valve outside
the carburetor mounted in the flange between the car-
buretor and the inlet passage.
A spring-loaded diaphragm is located inside the bottom
cover of the overrun valve; the vacuum in the inlet duct
acts on the top of the diaphragm while atmospheric pres-
sure from a hole in the bottom cover acts from below.
0....4
VI.
leration
(freewheel locked), the vacu-
f the diaphragm is sufficiently high to
the spring, thus drawing the diaphragm
ds This actuates the valve spindle and the valve
upwar C. necti°n is thereby made between the inlet
opens. dot'h e dece' eration section of the carburetor. The
duet an I New" mixture required to ensure sufficient
22:12:31.1 during engine deceleration can thus flow
through this passage.
During engine dece
um acting on top 0
exceed the force of
DECELERATION SYSTEM
1. Air inlet
2. Deceleration air passage
3. Deceleration fuel passage
4. To the inlet pipe
5. Diaphragm
6. Valve
7. Adjusting screw
8. Spring
zoo-24