Distributor - Saab SONETT III Service Manual

DISTRIBUTOR
The distributor is identical with the Saab V4 distributor.
As from model 1971 the vacuum advance operates via a
PVS-valve (PVS = positive vacuum supply). The valve is
fitted on the thermostat housing and feels the tempera-
ture of the coolant. When the temperature of the coolant
is rised above +225°F (107°C) the valve readjusts the
vacuum advance so that the idling will be faster and the
engine cooling will be improved. Concerning removal,
disassembly etc. of distributor, see Service Manual Saab
V4.
ARRANGEMENT OF VACUUM ROSES FOR DISTRIBUTOR
AND PVS VALVE, AS FROM MODEL 1971
A. Vacuum regulator
B. PVS valve
1. Rose from carburetor to position 1 on PVS valve
2.
Hose from vacuum regulator to position D on PVS valve
3.
Hose from vacuum regulator (retard side) to intermediate flange
4.
Hose from deceleration valve to position 2 on PVS valve
Nov. 1972
SAAB
342-1