Honda S2000 Cooling System: Radiator test, thermostat replacements and more
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Honda S2000 Cooling System: Radiator test, thermostat replacements and more
To see the original article with images check it out here: Honda S2000 Cooling System: Radiator test, thermostat replacements, inspections and more. Garage411.com
RADIATOR CAP TEST
1. Remove the radiator cap, wet its seal with engine coolant, then install it on the pressure tester (commercially available).
2. Apply a pressure of 93-123 kPa (0.95-1.25 kgf/cm2 , 14-18 psi).
3. Check for a drop in pressure.
4. If the pressure drops, replace the cap.
RADIATOR TEST
1. Wait until the engine is cool, then carefully remove the radiator cap and fill the radiator with engine coolant to the top of the filler neck.
2. Attach the pressure tester (commercially available) to the radiator and apply a pressure of 93-123 kPa (0.95-1.25 kgf/cm2 , 14-18 psi).
3. Inspect for engine coolant leaks and a drop in pressure.
4. Remove the tester and reinstall the radiator cap.
FAN MOTOR TEST
1. Disconnect the 2P connectors from the radiator fan motor and condenser fan motor.
2. Test the motor by connecting battery power to the No. 2 terminal and ground to the No. 1 terminal.
3. If the motor fails to run or does not run smoothly, replace it.
THERMOSTAT TEST
Replace the thermostat if it is open at room temperature.
Testing thermostat:
1. Suspend the thermostat in a container of water. Do not let the thermometer touch the bottom of the hot container.
2. Heat the water and check the temperature with the thermometer. Check the temperature at which the thermostat first opens, and at which it is fully open.
3. Measure the lift height of the thermostat when it is fully open.
* Standard Thermostat
WATER PUMP INSPECTION
1. Loosen the water pump pulley bolts.
2. Move the auto-tensioner to remove tension from the alternator-compressor belt, then remove the alternator-compressor belt.
3. Remove the water pump pulley.
4. Turn the water pump counterclockwise. Check that it turns freely.
5. Check for signs of seal leakage. A small amount of "weeping" from the bleed hole is normal.
WATER PUMP REPLACEMENT
1. Loosen the water pump pulley bolts.
2. Move the auto-tensioner to remove tension from the alternator-compressor belt, then remove the alternator-compressor belt.
3. Remove the water pump pulley.
4. Remove the water pump by removing the six bolts.
5. Clean and inspect the O-ring groove and the mating surface with the thermostat housing.
6. Install the water pump, with a new O-ring, in the reverse order of removal.
7. Clean up any spilled engine coolant.
COOLANT REPLACEMENT
1. Set the heater temperature control dial to maximum heat.
2. Remove the radiator cap.
3. Loosen the drain plug, and drain the coolant.
4. Remove the drain bolt from the right side of the cylinder block.
5. After the coolant has drained, apply liquid gasket, PN 08718-0009, to the drain bolt threads, then reinstall the bolt with a new washer and tighten it securely.
6. Tighten the radiator drain plug securely.
7. Remove, drain, and reinstall the reservoir. Fill the tank to the MAX mark with Honda All Season Antifreeze/Coolant Type 2 (PN OL999-9001).
8. Remove the bleed cap from the heater bypass tube.
9. Loosen the air bleed bolt in the intake manifold, then pour Honda All Season Antifreeze/Coolant Type 2 into the radiator to the bottom of the filler neck. Do not let coolant spill on any electrical parts or the paint. If any coolant spills, rinse it off immediately.
FYI:
* Always use Honda All Season Antifreeze/Coolant Type 2 (PN OL999- 9001). Using a non-Honda coolant can result in corrosion, causing the cooling system to malfunction or fail.
* Honda All Season Antifreeze/Coolant Type 2 is a mixture of 50% antifreeze and 50% water. Premixing is not required.
Engine Coolant Refill Capacity [including reservoir capacity of 0.6 l (0.6 US qt)]: 6.5 l (6.9 US qt)
10. Tighten the air bleed bolt as soon as coolant starts to run out in a steady stream.
11. Reinstall the bleed cap on the heater bypass tube as soon as coolant starts to run out in a steady stream.
12. With the radiator cap off, start the engine and let it run until warmed up (radiator fan comes on at least twice). Then, if necessary, add more Honda All Season Antifreeze/Coolant Type 2 to bring the level back up to the bottom of the filler neck.
13. Put the radiator cap on tightly, then run the engine again and check for leaks.
14. Clean up any spilled engine coolant.
RADIATOR AND FAN REPLACEMENT
1. Drain engine coolant.
2. Remove the upper and lower radiator hoses.
3. Disconnect the fan motor connectors and radiator fan switch connector.
4. Remove the radiator upper brackets and cushions, then pull up the radiator.
5. Remove both fan shroud assemblies and other parts from the radiator.
6. Install the radiator in the reverse order of removal. Make sure the upper and lower cushions are set securely.
7. Fill the radiator with engine coolant and bleed the air out.
8. Clean up any spilled engine coolant.
To see the original article with images check it out here: Honda S2000 Cooling System: Radiator test, thermostat replacements, inspections and more. Garage411.com
RADIATOR CAP TEST
1. Remove the radiator cap, wet its seal with engine coolant, then install it on the pressure tester (commercially available).
2. Apply a pressure of 93-123 kPa (0.95-1.25 kgf/cm2 , 14-18 psi).
3. Check for a drop in pressure.
4. If the pressure drops, replace the cap.
RADIATOR TEST
1. Wait until the engine is cool, then carefully remove the radiator cap and fill the radiator with engine coolant to the top of the filler neck.
2. Attach the pressure tester (commercially available) to the radiator and apply a pressure of 93-123 kPa (0.95-1.25 kgf/cm2 , 14-18 psi).
3. Inspect for engine coolant leaks and a drop in pressure.
4. Remove the tester and reinstall the radiator cap.
FAN MOTOR TEST
1. Disconnect the 2P connectors from the radiator fan motor and condenser fan motor.
2. Test the motor by connecting battery power to the No. 2 terminal and ground to the No. 1 terminal.
3. If the motor fails to run or does not run smoothly, replace it.
THERMOSTAT TEST
Replace the thermostat if it is open at room temperature.
Testing thermostat:
1. Suspend the thermostat in a container of water. Do not let the thermometer touch the bottom of the hot container.
2. Heat the water and check the temperature with the thermometer. Check the temperature at which the thermostat first opens, and at which it is fully open.
3. Measure the lift height of the thermostat when it is fully open.
* Standard Thermostat
o Lift height: above 10.0 mm (0.39 in.)
o Starts opening: 169-176°F (76-80°C)
o Fully open: 194°F (90°C)
WATER PUMP INSPECTION
1. Loosen the water pump pulley bolts.
2. Move the auto-tensioner to remove tension from the alternator-compressor belt, then remove the alternator-compressor belt.
3. Remove the water pump pulley.
4. Turn the water pump counterclockwise. Check that it turns freely.
5. Check for signs of seal leakage. A small amount of "weeping" from the bleed hole is normal.
WATER PUMP REPLACEMENT
1. Loosen the water pump pulley bolts.
2. Move the auto-tensioner to remove tension from the alternator-compressor belt, then remove the alternator-compressor belt.
3. Remove the water pump pulley.
4. Remove the water pump by removing the six bolts.
5. Clean and inspect the O-ring groove and the mating surface with the thermostat housing.
6. Install the water pump, with a new O-ring, in the reverse order of removal.
7. Clean up any spilled engine coolant.
COOLANT REPLACEMENT
1. Set the heater temperature control dial to maximum heat.
2. Remove the radiator cap.
3. Loosen the drain plug, and drain the coolant.
4. Remove the drain bolt from the right side of the cylinder block.
5. After the coolant has drained, apply liquid gasket, PN 08718-0009, to the drain bolt threads, then reinstall the bolt with a new washer and tighten it securely.
6. Tighten the radiator drain plug securely.
7. Remove, drain, and reinstall the reservoir. Fill the tank to the MAX mark with Honda All Season Antifreeze/Coolant Type 2 (PN OL999-9001).
8. Remove the bleed cap from the heater bypass tube.
9. Loosen the air bleed bolt in the intake manifold, then pour Honda All Season Antifreeze/Coolant Type 2 into the radiator to the bottom of the filler neck. Do not let coolant spill on any electrical parts or the paint. If any coolant spills, rinse it off immediately.
FYI:
* Always use Honda All Season Antifreeze/Coolant Type 2 (PN OL999- 9001). Using a non-Honda coolant can result in corrosion, causing the cooling system to malfunction or fail.
* Honda All Season Antifreeze/Coolant Type 2 is a mixture of 50% antifreeze and 50% water. Premixing is not required.
Engine Coolant Refill Capacity [including reservoir capacity of 0.6 l (0.6 US qt)]: 6.5 l (6.9 US qt)
10. Tighten the air bleed bolt as soon as coolant starts to run out in a steady stream.
11. Reinstall the bleed cap on the heater bypass tube as soon as coolant starts to run out in a steady stream.
12. With the radiator cap off, start the engine and let it run until warmed up (radiator fan comes on at least twice). Then, if necessary, add more Honda All Season Antifreeze/Coolant Type 2 to bring the level back up to the bottom of the filler neck.
13. Put the radiator cap on tightly, then run the engine again and check for leaks.
14. Clean up any spilled engine coolant.
RADIATOR AND FAN REPLACEMENT
1. Drain engine coolant.
2. Remove the upper and lower radiator hoses.
3. Disconnect the fan motor connectors and radiator fan switch connector.
4. Remove the radiator upper brackets and cushions, then pull up the radiator.
5. Remove both fan shroud assemblies and other parts from the radiator.
6. Install the radiator in the reverse order of removal. Make sure the upper and lower cushions are set securely.
7. Fill the radiator with engine coolant and bleed the air out.
8. Clean up any spilled engine coolant.
To see the original article with images check it out here: Honda S2000 Cooling System: Radiator test, thermostat replacements, inspections and more. Garage411.com
Last edited by Master23; Feb 26, 2012 at 03:33 PM. Reason: url edited
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