PERIODIC MAINTENANCE
3TNV88F Service Manual
5-21
Periodic Maintenance Procedures
3. Remove the drain plug or open the drain cock
at the lower portion of the
radiator and drain the engine coolant.
Figure 5-15
4. Drain the coolant from the engine block.
• On models not equipped with an oil cooler,
remove the coolant drain plug
(Figure 5-16, (1))
from the engine block.
Figure 5-16
5. After draining the engine coolant, flush the
radiator and engine block to remove any rust,
scale and contaminants. Then reinstall and
tighten the drain plug or close the drain cock in
the radiator. Reinstall and tighten the cylinder
block drain plug.
6. Fill radiator and engine with engine coolant.
See Filling Radiator with Engine Coolant on
page 4-20.
■
Adjust intake/exhaust valve clearance
Proper adjustment is necessary to maintain the
correct timing for opening and closing the valves.
Improper adjustment will cause the engine to run
noisily, resulting in poor engine performance and
engine damage.
.
FULL
LOW
K0000074A
1
2
1
046370-00X00
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