The S2000 F20C lubrication system applies to 1999-2003 models.
OIL PRESSURE SWITCH TEST
- Remove the YEL/RED wirefrom the engine oil pressure switch.
- Check for continuity between the positive terminal and the engine (ground). There should be continuity with the engine stopped. There should be no continuity with the engine running.
- If the switch fails to operate, check the engine oil level. If the engine oil level is OK, check the engine oil pressure.
OIL PRESSURE TEST
If the oil pressure indicator light stays on with the engine running, check the engine oil level. If the oil level is correct, continue with test.
- Connect a tachometer.
- Remove the engine oil pressure switch, and install an oil pressure gauge.
- Start the engine. Shut it off immediately if the gauge registers no oil pressure. Repair the problem before continuing.
- Allow the engine to reach operating temperature (fan comes on at least twice). The pressure should be:
Engine Oil Temperature: 176°F (80°C)
Engine Oil Pressure:
- At Idle: 250 kPa (2.5 kgf/cm2 , 36 psi) minimum
- At 3,000 rpm: 590 kPa (6.0 kgf/cm2 , 85 psi) minimum
5. If oil pressure is NOT within specifications, inspect these items:
- Check the oil filter for clogging.
- Inspect the oil pump
ENGINE OIL REPLACEMENT
Under normal conditions, the oil filter should be replaced at every other oil change. Under severe conditions, the oil filter should be replaced at each oil change.
Change interval:
- Every 7,500 miles (12,000 km) or 12 months (Normal conditions).
- Every 3,750 miles (6,000 km) or 6 months (Severe conditions).
- Warm up the engine.
- Remove the drain bolt, and drain the engine oil.
- Reinstall the drain bolt with a new washer.
- Refill with the recommended oil.
Capacity
- 4.5 l (4.8 US qt) at oil change.
- 4.8 l (5.1 US qt) at oil change including filter.
- 5.6 l (5.9 US qt) after engine overhaul.
5. Run the engine for more than 3 minutes, then check for oil leakage.
OIL FILTER REPLACEMENT
SPECIAL TOOLS REQUIRED: Oil Filter Wrench 07912-6110001
1. Remove the oil filter with the special tool.
2. Inspect the threads and rubber seal on the new filter. Wipe off the seat on the engine block, then apply a light coat of new engine oil to the filter rubber seal. Use only filters with a built-in bypass system.
3. Install the oil filter by hand.
4. After the rubber seal seats, tighten the oil filter clockwise with the special tool.
- Tighten: 7/8 turn clockwise.
- Tightening torque: 22 N.m (2.2 kgf.m, 16 lbf.ft)
5. If eight numbers, 1 to 8, are printed around the outside of the filter, use the following procedure to tighten the filter.
- Spin the filter on until its seal lightly seats against the engine oil cooler, and note which number is at the bottom.
- Tighten the filter by turning it clockwise seven numbers from the one you noted. For example, if number 2 is at the bottom when the seal is seated, tighten the filter until the number 1 comes around the bottom.
6. After installation, fill the engine with oil up to the specified level, run the engine for more than 3 minutes, then check for oil leakage.
OIL JET INSPECTION
1. Remove the oil jet, and inspect it as follows.
- Make sure that a 1.5 mm (0.06 in.) diameter drill will go through the nozzle hole (1.6 mm (0.06 in.) diameter).
- Insert the end of a 1.1 mm (0.04 in.) drill into the oil intake (1.2 mm (0.05 in.) diameter).
- Make sure the check ball moves smoothly and has a stroke of approximately 4.0 mm (0.16 in.).
- Check the oil jet operation with an air nozzle. It should take at least 200 kPa (2.0 kgf/cm2 , 28 psi) to unseat the check ball.
FYI: Replace the oil jet assembly if the nozzle is damaged or bent.
Removing Oil Jet
2. The mounting torque is critical. Be very precise when installing the oil jet.
Torque: 16 N.m (1.6 kgf.m, 12 lbf.ft)
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