Porsche 1972 911 Workshop Manual page 245

911
R e p a i r i n g
R E M O V I N G A N D I N S T A L L I N G T H E R M O V A L V E
R e m o v i n g
1. Remove formed hose, left heater hose and
right heater hose. Disconnect electric wires,
loosen clamp and remove heater blower.
Disconnect electric plug a t thermovalve.
2.
Detach hoses, unscrew bolt and remove thermo-
valve.
I n s t a l l i n g
Connect vacuum hoses properly. Outer connec-
tion on thermovalve (1) to control pressure regu-
lator connection ( I ) , see photos below.