Sprinter 2500 L5-2.7L DSL Turbo (2003)
COMBUSTION LEAKAGE TEST - WITHOUT PRESSURE TESTER
DO NOT WASTE reusable coolant. If solution is clean, drain coolant into a clean and suitably marked container for reuse.
WARNING: DO NOT REMOVE CYLINDER BLOCK DRAIN PLUGS OR LOOSEN RADIATOR DRAIN WITH SYSTEM HOT AND
UNDER PRESSURE. SERIOUS BURNS FROM COOLANT CAN OCCUR.
Drain sufficient coolant to allow thermostat removal.
Remove accessory drive belt.
Add coolant to pressure container to bring level to within 6.3 mm (1/4 inch) of top of thermostat housing.
CAUTION: Avoid overheating. Do not operate engine for an excessive period of time. Open draincock immediately after test to eliminate boil over.
Start engine and accelerate rapidly three times, to approximately 3000 rpm while observing coolant. If internal engine combustion gases are leaking
into cooling system, bubbles will appear in coolant. If bubbles do not appear, internal combustion gas leakage is not present.
