Removal Of Thermostat; Inspection Of Thermostat - Volkswagen Taro 1989 Workshop Manual

3 .
Install and adjust drive ben
(See page 13)
4. Refill wllh coolant (See page 114)
5.
Start engine and check for leaks
T H E R M O S T A T
REMOVAL OF THERMOSTAT
1.
Drain Coolam (See page 114)
2.
Disconnect radiator outlet hose from water inlet
3 . Remove water inlet and thermostat
Remove the two nuts, water lnlet gasket and thermostat from
the tlmlng chain case
I
I
INSPECTION OF THERMOSTAT
NOTE The thermostat is numbered according to the valve
openfng temperature
(a) Immerse the thermostat m water and heat the water
gradually
(b) Check the valve openrng temperature and valve lfl
If the valve opening temperature and valve lift are not withln the
fallow~ng spedlcatlons, replace the thermostat
Valve opening temperature.
80
-
84°C
Valve lfl
8 mm
or more at 95°C
(c) Check that the valve spring is tight when the thermostat is
fully closed Replace as necessay.