Engine Coolant Replacement (2.3L); Air Bleeding (2.3L) - Mazda B-Series 1997 Workshop Manual

ENGINE COOLANT
REPLACEMENT
Warning
Never remove the radiator cap while the engine is
hot.
Wrap a thick cloth around the cap when loosening
it.
Use caution when draining hot coolant.
Caution
Do not use alcohol or methanol-based coolant.
Use only soft (demineralized) water in the coolant
mixture.
1. Remove the radiator cap and loosen the drain plug.
2. Drain the coolant into a suitable container.
3. Flush the cooling system with water until all traces of color
are gone; then, let the system drain completely.
4. Tighten the drain plug.
m
Tightening torque:
2.0-2.7 N.m (20-27 kgf.cm, 18-25 in-lbf)
5. Fill with the proper amount and mixt~~re of coolant. (Refer
to page E l -4.)
'
Coolant capacity:
With AIC: 6.8 liters (7.2 US qt, 6.0 Imp qt)
Without AIC: 6.2 liters (6.5 US qt, 5.4 Imp qt)
6. Run the engine with the filler cap removed until the upper
radiator hose is hot.
7. With the engine idling, add coolant to the radiator until it
reaches the bottom of the filler neck.
8. Install the radiator cap.
9.Verify that the coolant in the reservoir is at the COLD
FlLL mark. Add coolant as necessary.
AIR BLEEDING
When refilling the coolant system after draining the
coolant, perform the following:
1. Slowly pour the coolant into the radiator up to the filler
neck.
2. Fill the coolant reservoir to the C0L.D FlLL mark.
3. Install the radiator cap securely and start the engine.
-7-
!
4. Run the engine at idle speed until it reaches normal
operating temperature.
n
@-
Caution
~ ~ 1 0 0 3 - B ~BUOEI-012
If the temperature increases beyond normal, there
is excessive air in the system.
Stop the engine and allow it to cool; then repeat
steps 1-3.
5. Run the engine at 2,000 rpm for 3-4 minutes.
6. Stop the engine and wait until it cools down.
7. Repeat steps 1-6; then go to step 8.