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8. Fill radiator and reservoir tank to specified level. 2,000 rpm until radiator lower hose becomes hot. ● If coolant level becomes low, refill coolant until coolant level ● If coolant overflows radiator filler hole, install filler cap. 10. Run engine at 2,500 prm for 10 seconds and return to idle speed. ● Repeat 2 or 3 times. Watch coolant temperature gauge so as not to overheat the ● Cool down using a fan to reduce the time. ● If necessary, refill radiator up to filler neck. 12. Refill reservoir tank to Max line with coolant. cap installed until coolant level no longer drops. 14. Check cooling system for leaks with engine running. running engine from idle up to 3,000 rpm with heater tem- ● Sound may be noticeable at heater water cock. 16. If the sound is heard, bleed air from cooling system by repeating steps 9 through 12 until coolant level no longer — FLUSHING COOLING SYSTEM — 1. Open air relief plug. then reinstall air relief plug. Air relief plug: : 7 - 8 N·m (0.7 - 0.8 kg-m, 5,1 - 5.8 ft-lb) Fill radiator and reservoir tank with water and reinstall radia- 3. Run engine and warm it up sufficiently. ● Make sure that blower fan is “OFF”. 5. Stop engine and wait until it cools down. from radiator. Checking Cooling System CHECKING HOSES Check hoses for proper attachment and for leaks, cracks, CHECKING RADIATOR Check radiator for mud or clogging. If necessary, clean radiator ● Be careful not to bend or damage the radiator fins. ● When radiator is cleaned without removal, remove all sur- SMA412B MAX. MIN. ENGINE MAINTENANCE SR20DE Changing Engine Coolant (Cont’d) MA-31 |