ENGINE MAINTENANCE (YD22DDTI)
MA-29
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3. Fill reservoir tank to specified level.
4. Warm up engine to normal operating temperature without radia-
tor cap installed.
●If engine coolant overflows radiator filler hole, install
radiator cap.
5. Run engine at 3,000 rpm for 10 seconds and return to idle speed
with radiator cap installed.
●Repeat two or three times.
Watch engine coolant temperature gauge so as not to overheat
the engine.
6. Stop engine and cool down to less than approximately
50°C(122°F).
●Cool down using a fan to reduce the time.
●If necessary, refill radiator up to filler neck with engine coolant.
7. Refill reservoir tank to MAX level line with engine coolant.
8. Repeat steps 5 through 7 two or more times with radiator cap installed until engine coolant level no longer
drops.
9. Check cooling system for leaks with engine running.
10. Warm up engine, and check for sound of engine coolant flow while running engine from idle up to 3,000
rpm with heater temperature controller set at several position between COOL and WARM.
●Sound may be noticeable at heater unit.
11. If sound is heard, bleed air from cooling system by repeating steps 5 through 7 until engine coolant level
no longer drops.
●Clean excess engine coolant from engine.
FLUSHING COOLING SYSTEM
1. Fill radiator with water until water spills from the air relief hole, then close air relief flag. Fill radiator and
reservoir tank with water and reinstall radiator cap.
2. Run engine and warm it up to normal operating temperature.
3. Rev engine two or three times under no-load.
4. Stop engine and wait until it cools down.
5. Drain water.
6. Repeat steps 1 through 5 until clear water begins to drain from radiator.
Checking Cooling SystemELS000C4
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter
turn to allow built-up pressure to escape. Carefully remove the cap by turning it all the way.
CHECKING COOLING SYSTEM HOSES
Check hoses for improper attachment, leaks, cracks, damage, loose connections, chafing and deterioration.
CHECKING RADIATOR
Check radiator for mud or clogging. If necessary, clean radiator as follows.
●Be careful not to bend or damage the radiator fins.
●When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator
shroud and horns. Then tape the harness and connectors to prevent water from entering.
1. Apply water by hose to the back side of the radiator core vertically downwards.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from the radiator.
4. Blow air into the back side of radiator core vertically downwards.
●Use compressed air lower than 490 kpa (4.9 bar, 5 kg/cm2 , 71psi) and keep distance more than 30
cm(11.8 in).
SMA412B
SERVICE DATA AND SPECIFICATIONS (SDS)
MA-43
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitELS000K3
BELT DEFLECTION AND TENSION
QR20DE and QR25DE
YD22DDTi
*: When engine is cold.
RADIATOR
Unit: kPa (bar, kg/cm2 , psi)
ENGINE COOLANT CAPACITY
QR20DE and QR25DE
Unit: (lmp qt)
YD22DDTi
Unit: (lmp qt)
ENGINE OIL CAPACITY
QR20DE and QR25DE
Unit: (lmp qt)
YD22DDTi
Unit: (lmp qt)
SPARK PLUG
QR20DE and QR25DE
Tensions of drive belts Auto-adjustment by auto-tensioner
Applied beltBelt deflection with 98 N (10 kg, 22 lb) force applied* mm (in)
New Adjusted Limit for re-adjusting
Air conditioner compressor belt 4 - 5 (0.16 - 0.20) 6 - 7 (0.24 - 0.28) 8.5 (0.335)
Alternator and water pump belt 9.0 - 10.5 (0.354 - 0.413) 11.0 - 12.5 (0.433 - 0.492) 16.5 (0.650)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11 - 14)
Limit 59 (0.59, 0.6, 9)
Leakage test pressure 157 (1.57, 1.6, 23)
Coolant capacity (With reservoir tank at MAX level) 7.1 (6-1/4)
Reservoir tank coolant capacity (At MAX level) 0.6 (1/2)
Coolant capacity (With reservoir tank at MAX level) 9.5 (8-3/8)
Reservoir tank coolant capacity (At MAX level) 0.6 (1/2)
Drain and refill With oil filter change Approximately 3.9 (3-3/8)
Without oil filter change Approximately 3.5 (3-1/8)
Dry engine (Overhaul)Approximately 4.5 (4)
Drain and refill With oil filter change Approximately 5.2 (4-5/8)
Without oil filter change Approximately 4.9 (4-3/8)
Dry engine (Overhaul)Approximately 6.3 (5-1/2)
MakeNGK
Standard typeLFR5A-11
Hot typeLFR4A-11
Cold typeLFR6A-11
Spark plug gap mm(in) 1.0 - 1.1 (0.039 - 0.043)
