Diagnostic Information And Procedures; Powerhead Cooling System Diagnosis; Service Instructions; Thermostat Removal And Installation - Suzuki DF70A Service Manual

Powerhead Cooling System Diagnosis

Condition
Overheating powerhead
Overcooling powerhead

Thermostat Removal and Installation

Removal
1) Remove the ring gear cover.
Refer to "Ring Gear Cover Removal and Installation"
in Section 1D (Page 1D-2).
2) Loosen the clip (1) and remove the water return
hose (2) from thermostat cover (3).
3
1
2
3) Remove the two bolts (4) securing the thermostat
cover (3), then remove the cover with thermostat.
4
3

Diagnostic Information and Procedures

Possible cause
Water inlet screen obstructed.
Water passage obstructed.
Pump plate not sealing.
Water pump impeller damage.
Water pump housing and/or plate worn. Replace.
Water pump housing seal worn.
Water tube grommet damaged.
Thermostat damaged / defective.
Water pressure valve damaged /
defective.
Thermostat damaged / defective.

Service Instructions

Z9J0111606001
I9J011160005-01
4
I9J011160006-01
Power Unit Cooling System:
Correction / Reference Item
Clean.
Clean or replace.
Check and repair.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
4) Remove the thermostat (5) and cover seal (6) from
thermostat cover.
5
6
Installation
Installation is reverse order of removal with special
attention to the following steps.
• Assemble thermostat (1), cover seal (2) and
thermostat cover (3).
2
1F-3
Z9J0111604001
I9J011160007-01
3
1
I9J011160008-01