Thermostat - TOHATSU 40 Service Manual

SECTION 4

THERMOSTAT

Removal
1. Remove thermostat cap screws. Gently tap thermostat cap
1
with rubber mallet to loosen and remove cap and gasket.
Discard gasket.
2. Remove and inspect thermostat.
Earlier 90, 115, 120 and 140 engines had a flat metal
bypass valve with a spring and retainer. This has
been eliminated from newer 90, 115, 120 and 140
engines.
3. Perform thermostat Function Test if thermostat is suspect.
Installation
1. Install thermostat in cylinder head.
2
2.Install thermostat cap (2) and gasket (1) and torque to
3
specification.
4-14
NOTE
T1166
T1167
T1168
3-/ 4-Cylinder