B4 - ENGINE
79019435B
FAN BELT
FIG. 10: Correct fan belt tension helps to insure adequate
coolant flow through cylinder block and radiator. Belt is
correctly tensioned when belt deflection is approximately
1/2" (12 mm) as shown at “X” when thumb pressure is
exerted at center of belt span.
CAUTION: Due to muffler position, allow to
cool before checking or adjusting fan belt
tension.
COOLING SYSTEM
CAUTION: DO NOT remove radiator cap when
engine is hot. Rotate cap slowly to release
pressure. Then cap can be safely removed.
FIG. 7: Cooling system is filled at factory with anti-freeze
solution to protect engine and radiator to -30° F (-34° C).
Cooling level should be maintained to 1/2" (12 mm) below
the filler neck opening, 1.
FIG. 9
I-3188
FIG. 10
I-3121
1
2
FIG. 8: Make sure the radiator, radiator screen and grill
screens are clean to permit maximum cooling. The battery
tray can be swung out to aid in cleaning. Use compressed
air or water to clean, but use care when cleaning the
radiator to prevent cooling fin damage.
FIG. 9: Drain cock, 2, will drain coolant from cylinder
block and radiator. Drain cock is located on right side of
engine. Coolant should be replaced if it becomes
contaminated with rust or sludge. Loosening radiator cap
will assist draining.
NOTE: Flush inside of radiator and engine block prior to
replacing coolant.
Check condition of hoses, belt and clamps and replace
as necessary.
FIG. 7
I-3187
FIG. 8
I-9000