| Fig. 1: Check antifreeze protection level with an inexpensive
tester
|
| Fig. 2: Cutaway view of a typical cooling system flow
|
| Fig. 3: Cooling systems should be pressure tested for
leaks periodically
|
| Fig. 4: Check coolant level at the coolant reservoir — it
should be at or above the FULL mark with the engine at normal operating
temperature — if low, remove the cap . . .
|
| Fig. 5: . . . and add coolant as necessary — a
50/50 mix of antifreeze/water should be used
|
CAUTION
Never remove the radiator cap under any conditions while the engine is running!
Failure to follow these instructions could result in damage to the cooling
system or engine and/or personal injury. To avoid having scalding hot coolant
or steam blow out of the radiator, use extreme care when removing the radiator
cap from a hot radiator. Wait until the engine has cooled, then wrap a thick
cloth around the radiator cap and turn it slowly to the first stop. Step back
while the pressure is released from the cooling system. When you are sure
the pressure has been released, press down on the radiator cap (still have
the cloth in position) turn and remove the radiator cap.
At least once every 2 years, the engine cooling system should be inspected, flushed, and refilled with fresh coolant. If the coolant is left in the system too long, it loses its ability to prevent rust and corrosion. If the coolant has too much water, it won't protect against freezing.
The pressure cap should be looked at for signs of age or deterioration. Fan belt and other drive belts should be inspected and adjusted to the proper tension. (See checking belt tension).
Hose clamps should be tightened, and soft or cracked hoses replaced. Damp spots, or accumulations of rust or dye near hoses, water pump or other areas, indicate possible leakage, which must be corrected before filling the system with fresh coolant.
