Pontiac FIREBIRD 1972 Service Manual page 1167

9-14
1972 PONTIAC SERVICE MANUAL
PRESSURE RETURN
R O T M Y VALVE
Fig. 9-1 2 Oil Flow
-
Right Turn Position
align with the lands and grooves on the inside surface of
and is attached to one end of the rotary valve; a pin locks
the valve body (Fig. 9-1 1). Grooves are slightly wider than
the stub shaft and the valve spool together and a pin in the
their mating land and clearance on both sides of the land
valve body retains the torsion bar.
provides and open position. A stub shaft (stub shaft and
a torsion bar pinned together at one end) extends through
In the straight-ahead or neutral position, oil flows from
Fig. 9-13 Oil Flow
-
Left Turn Position