1. Radiator inspection
1) Inspect the radiator fin for the following.
- Deformation
- Collapsing
Note
- Repair the radiator fins if deformation or collapsing is found.
Caution
- If repairing, do not damage the base of the fins.
2. Radiator cleaning
1) Clean the radiator interior and coolant passages using tap water.
Note
- Wet the front and back surfaces of the radiator sufficiently.
- Wipe away any rust or water deposits.
Caution
- Do not apply high pressure washing to the radiator, intercooler, or peripheral parts while they are installed on the vehicle.
2) Seal the radiator hose connection using a cap, cloth tape, etc.
3) Clean any light dirt with tap water.
Caution
- At this time, do not use a high-pressure washing machine or brush.
4) Apply a neutral detergent that contains approximately 8% surface acting agent to the front and rear surfaces of the radiator fin, and leave for 10 minutes.
Caution
- Do not use other materials than mild detergent, because using other materials may cause corrosion.
5) Clean the radiator using a high-pressure washing machine.
Note
- When dirt is not washed off sufficiently, repeat the cleaning.
Caution
- High-pressure water should be applied perpendicularly to the fins from the engine side of the radiator.
- High-pressure water should not be taken too close to the fins, or cause them to become deformed.
Legend
- Radiator
6) Make sure any dirt on the radiator fins has been completely washed off.
Note
- If dirt remains, fine black particles can be seen adhering to the radiator fins.
- When dirt is not washed off sufficiently, repeat the cleaning.
7) Clean the radiator using tap water.
Caution
- Thoroughly rinse off all detergent from the core and plastic sections.
8) Remove the cap, cloth tape, etc., from the radiator.
9) Clean the radiator hose connections using tap water.
Caution
- Thoroughly dry the hose connection after work.