Suzuki Wagon R Plus RB310, Service Manual

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ENGINE COOLING (M13 ENGINE) 6B2-7
2) With radiator cap removed, run engine until upper radiator
hose is hot (this shows that thermostat is open and coolant is
flowing through system).
3) Stop engine and drain coolant from radiator drain plug (1).
4) Close radiator drain plug (1). Add water until system is filled
and run engine until upper radiator hose is hot again.
5) Repeat Steps 3) and 4) several times until drained liquid is
nearly colorless.
6) Close radiator drain plug (1) tightly.
7) Remove reservoir (1), and remove cap (2) from reservoir (1).
8) Pour out any fluid, scrub and clean inside of reservoir with
soap and water.
Flush it well with clean water and drain. Reinstall reservoir.
9) Fill reservoir with coolant up to “Full” level mark (3).
10) Install reservoir cap (2) and align match marks (4) on reser-
voir and its cap.
11) Loosen air ventilation bolt (5) one and a half turns.
12) Fill radiator with coolant up to spilling coolant from air ventila-
tion bolt (5).
13) Tighten air ventilation bolt (5) to specified torque.
Tightening torque
Air ventilation bolt (a): 4.5 N·m (0.45 kg-m, 3.5 lb-ft)
14) Fill radiator with coolant up to bottom of radiator filler neck
and install radiator cap, making sure that the ear of cap lines
is parallel to radiator.
15) Run engine at idle speed.
16) Loosen air ventilation bolt (5) one and a half turns.
17) Run engine at 2000-3000 rpm, and tighten air ventilation bolt
(5) to specified torque after spilling coolant from air ventila-
tion bolt (5).
Tightening torque
Air ventilation bolt (a): 4.5 N·m (0.45 kg-m, 3.5 lb-ft)
18) Run engine until radiator fan motor is operated.
19) Stop engine and wait until engine comes cooled down to
help avoid danger of being burned.
20) Add coolant to radiator up to bottom of radiator filler neck,
and install radiator cap, making sure that the ear of cap lines
is parallel to radiator.
21) Repeat step 15) through 20).
22) Confirm that reservoir coolant level is “Full” level mark (3). If
coolant is insufficient, repeat step 9) and 10).
5, (a)
3
1
1
4
2
1