Honda F22B2 Specifications
| Engine Model: Honda F22B2 |
| Engine Type: 4-cycle inline 4-cylinder SOHC 16-valve liquid-cooled gasoline |
| Total Displacement: 131.6 cu.in (2.15 L) |
| Rated Engine Power: 130-135 Hp (97-101 kW) at 5500 rpm |
| Fuel System Type: Multi-point electronic fuel injection |
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The Honda F22B2 is a 2.2-liter inline-four
gasoline engine produced during the mid-1990s as part of Honda’s
F-series engine family. Installed primarily in North American Honda
Accord models, the F22B2 was engineered for dependable daily operation,
low maintenance costs, and strong low-to-mid-range torque rather than
high-rpm performance.
Unlike the VTEC-equipped F22B1 and
performance-oriented H-series engines, the F22B2 uses a non-VTEC SOHC
configuration that prioritizes efficiency, smoothness, and longevity.
Its cast-iron block and aluminum cylinder head provide excellent
durability, while the simple intake and exhaust design make the engine
easy to service and resistant to operational stress.
The F22B2’s relaxed tuning results in a smooth, steady powerband ideal
for commuting, family driving, and highway travel. Despite its moderate
power output, the engine enjoys a strong reputation among enthusiasts
for its robustness, tolerance to poor maintenance, and ability to
accumulate high mileage with minimal internal wear. Many units continue
to operate reliably decades after production, making the F22B2 a
well-regarded example of Honda’s engineering philosophy focused on
practicality and reliability.
The Honda F22B2 is a four-stroke, water-cooled inline-four gasoline
engine with a displacement of 2,156 cc (131.6 cubic inches). Bore is
85.0 mm (3.35 inches) and stroke is 95.0 mm (3.74 inches), giving the
engine a long-stroke configuration that enhances low-rpm torque and
drivability. The compression ratio is approximately 8.8:1 to 9.0:1
depending on market calibration.
Power output is typically rated at 130–135 horsepower (97–101 kW) at
around 5,300–5,500 rpm. Peak torque is about 190–195 Nm (140–144 lb-ft)
at approximately 4,500 rpm. Idle speed is about 700 ± 50 rpm, and
redline is set near 6,200 rpm. The firing order is 1-3-4-2.
The bottom end uses a cast-iron block with five main bearings supporting
a forged-steel crankshaft. Lightweight aluminum pistons with
low-friction coatings reduce mechanical resistance. Connecting rods are
forged steel units engineered for long service life. The engine uses a
SOHC head with four valves per cylinder for balanced breathing and fuel
efficiency.
The F22B2’s cast-iron block provides excellent rigidity and thermal
endurance. The long-stroke design supports strong low-rpm torque and
fuel efficiency. Five main bearings support the crankshaft, providing
stability and smooth rotation. Oil galleries are machined to ensure
consistent lubrication to journals, pistons, and upper valvetrain
components.
Coolant passages are integrated to maintain stable operating temperature
and prevent hot-spot formation. The block’s integrated mounting points
allow straightforward installation of accessories such as the
alternator, power steering pump, and A/C compressor.
The aluminum SOHC cylinder head features four valves per cylinder. While
the F22B2 does not use Honda’s VTEC system, its cam profile provides
balanced torque across the rpm range.
Valve diameters measure:
– Intake valves: approx. 34 mm (1.34 inches)
– Exhaust valves: approx. 29 mm (1.14 inches)
The head uses a belt-driven camshaft actuating valves through rocker
arms. Valve clearance must be manually adjusted using set screws and
locknuts. The pent-roof combustion chamber shape promotes efficient
combustion and lower emissions. The timing belt must be replaced at
scheduled intervals to avoid engine damage.
The F22B2 uses Honda’s Programmed Fuel Injection (PGM-FI) sequential
multi-point system. Fuel pressure is maintained at approximately 300–350
kPa (43–51 psi). A high-pressure electric pump in the tank supplies fuel
to the rail, where electronic injectors deliver fuel with precise
atomization.
Sensors used include:
– Manifold Absolute Pressure (MAP)
– Throttle Position Sensor (TPS)
– Oxygen sensor
– Engine Coolant Temperature (ECT)
– Intake Air Temperature (IAT)
– Crankshaft Position Sensor (in distributor)
The idle-air-control valve (IACV) regulates air bypass during idle and
cold starts. Recommended fuel is unleaded gasoline of 87 AKI (91 RON) or
higher.
The lubrication system is a full-pressure wet-sump design using a
trochoid oil pump driven by the crankshaft.
Specifications:
– Oil capacity with filter: approx. 4.0 liters (4.2 US quarts)
– Oil pressure at 3,000 rpm: approx. 320–420 kPa (46–61 psi)
– Idle oil pressure: approx. 70–120 kPa (10–17 psi)
Oil is drawn from the sump through a screened pickup, delivered to a
full-flow spin-on filter, then fed through the main oil gallery.
Recommended viscosity is SAE 5W-30 or 10W-30 depending on climate.
Typical oil change interval is 8,000–10,000 km (5,000–6,000 miles).
The cooling system uses a belt-driven centrifugal water pump to
circulate coolant through the block, head, radiator, and heater core.
Specifications:
– Coolant capacity: approx. 6.0–6.5 liters (6.3–6.9 US quarts)
– Thermostat opening: approx. 78–82°C (172–180°F)
– Fully open: approx. 95°C (203°F)
– Cooling system pressure: approx. 88–108 kPa (13–16 psi)
The aluminum radiator and electric cooling fan maintain stable operating
temperatures. Coolant should be replaced every 40,000 km (25,000 miles)
or two years. The system includes a bypass and bleed system to eliminate
trapped air.
| Intake and Exhaust Systems |
The intake manifold is cast aluminum with runners tuned for mid-range
torque. A dry paper air filter element protects the intake. The throttle
body includes vacuum ports for emissions and idle-control systems.
The exhaust manifold is cast iron for durability. A catalytic converter
is located downstream for emissions compliance. Oxygen sensors monitor
mixture control, and the ECU adjusts fueling accordingly.
| Ignition and Electrical System |
The F22B2 uses a distributor-based ignition system with internal
sensors. The ignition coil is housed within the distributor, and spark
timing is controlled electronically by the ECU.
Specifications:
– Spark plug gap: approx. 1.0–1.1 mm (0.039–0.043 in)
– Alternator output: approx. 80–95 amperes
– Starter motor output: approx. 1.0–1.2 kW
– System voltage: 12 V
The ECU manages ignition timing based on load, MAP signal, rpm, and
coolant temperature.
The F22B2 includes:
– PCV system
– EVAP system with charcoal canister
– EGR valve for NOx reduction
– Idle-air-control valve
– OBD-I or OBD-II diagnostics depending on model year
– Length: 640 mm (25.2 inches)
– Width: 580 mm (22.8 inches)
– Height: 670 mm (26.4 inches)
Dry weight is typically 145–155 kg (320–342 lbs) depending on
accessories.
Recommended maintenance schedule:
– Oil and filter: every 8,000–10,000 km (5,000–6,000 miles)
– Air filter: every 20,000–30,000 km
– Spark plugs: every 30,000–40,000 km (standard), 60,000–80,000 km
(platinum)
– Timing belt: every 100,000 km (60,000 miles)
– Valve adjustment: every 40,000 km (25,000 miles)
– Fuel filter: every 40,000 km (25,000 miles)
– Coolant: every 40,000 km or 2 years
– Compression test: typically 170–200 psi (1,170–1,380 kPa)
– Cylinder head bolts: 30 Nm (22 lb-ft) + 90° + 90°
– Main bearing caps: 60 Nm (44 lb-ft)
– Connecting rod bolts: 40 Nm (30 lb-ft)
– Flywheel bolts: 88 Nm (65 lb-ft)
– Crankshaft pulley bolt: 245 Nm (181 lb-ft)
– Intake manifold bolts: 22 Nm (16 lb-ft)
– Exhaust manifold nuts: 30 Nm (22 lb-ft)
– Spark plugs: 18 Nm (13 lb-ft)
– Oil drain plug: 40 Nm (30 lb-ft)
The F22B2 engine was used primarily in:
– Honda Accord (1994–1997, North American market)
– Regional Honda/Rover joint-venture models
– Aftermarket engine swaps where reliability is prioritized
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