MAINTENANCE AND S ERVICING
Engine Cooling System
The engine cooling system is d esigned to maint ain the engine operating temperature wit hin the specified
operating range.
NOTE:
Antifreeze i
s essential in any climate. It broadens the operating temperature range by lowering the coolant
freezing poi
nt, AND by ra ising its boiling point. A ntifreeze also contains rust inhibitors and other additives to
prolong engi
ne life.
IMPORTAN T:
If antifreeze strength is not adequate, do NOT drain cooling system to protect against freezing. System may not
drain completely and damage from freezing could still result.
Refer to 8.2.3 Lubricants, Fluids, and System Capacities, page 466 for detailed information.
Inspecting Radiator Cap
The radiat
or cap must fit tightly and the cap gasket m ust be in good condition to maintain the 14–18 psi
(97–124 kP
a) pressure in the cooling system.
CAUTION
To avoid personal injury from hot coolant, do NOT turn radiator cap until engine cools.
1. Open the hood. Refer to 5.2.3 Opening Hood (Highest Position), page 307.
2. Open the platform. Refer to 5.3.1 Opening Platforms (Standard Position), page 309.
3. Turn the cap (A) counterclockwise to the first notch to
relieve press ure be fore removing cap c ompletely.
4. Turn the cap (A) again and remove.
5. Check the gasket for cracks or deterioration and
replace the cap if necessa ry.
6. Check tha t t he spring in the cap m oves fre ely.
7. Replace the cap if spring is stuck.
8. Close t he platform. Refer to 5.3.2 Closing Platforms
(Standard Position), page 310.
9. Close the hood. Refer to 5.2.4 Closing Hood (Highest
Position), page 308.
Figure 5.87: Engine Cooling System
Checking Engine Coolant Strength
Check the anti-freeze in the radiator with a tester every year, preferably before off-season storage.
CAUTION
To avoi
d personal injury from hot coolant, do NOT turn radiator cap until engine cools.
1. Open the hood. Refer to 5.2.3 Opening Hood (Highest Position), page 307.
2. Open the platform. Refer to 5.3.1 Opening Platforms (Standard Position), page 309.
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