The 2.3-liter Honda H23A engine was assembled at the company’s Japanese plant from 1992 to 2002 and installed on some modifications of the fourth-generation Accord and Prelude models. There were two versions of the motor: with a black cover without VTEC and charged with a blue cover.
H-series family: H22A, H23A.
Specifications
| Production years | 1992-2002 |
| Displacement, cc | 2258 |
| Fuel system | injector |
| Power output, hp | 160 – 165 (Black top: H23A, H23A1, H23A2, H23A3) 190 – 200 (Blue top: H23A VTEC) |
| Torque output, Nm | 210 – 215 (Black top: H23A, H23A1, H23A2, H23A3) 220 (Blue top: H23A VTEC) |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 87 |
| Piston stroke, mm | 95 |
| Compression ratio | 9.8 (Black top: H23A, H23A1, H23A2, H23A3) 10.6 (Blue top: H23A VTEC) |
| Features | DOHC |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | no (Black top: H23A, H23A1, H23A2, H23A3) VTEC (Blue top: H23A VTEC) |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.3 4.5 |
| Fuel type | petrol |
| Euro standards | EURO 3/4 |
| Fuel consumption, L/100 km (for Honda Prelude 1995) — city — highway — combined |
10.7 6.3 8.8 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 160 |
The engine was installed on:
- Honda Accord 5 (CD) in 1993 – 1997, Accord 6 (CG) in 1997 – 2002;
- Honda Ascot Innova 1 (CB) in 1992 – 1996;
- Honda Prelude 4 (BA8) in 1991 – 1996;
- Rover 600 1 (RH) in 1993 – 1999.
Disadvantages of the Honda H23A engine
- The only serious drawback of these power units is the oil burner;
- Oil not only goes to waste, but also likes to ooze from all gaskets and seals;
- The cooling system also suffers from leaks, rubber tubes often burst here;
- From time to time, sensor failures occur here and the engine starts to become very dull;
- There are no hydraulic lifters and valve clearances need to be adjusted every 40,000 km.
H23A Engine Repair Parts List
| Full name of the part | Part code |
| Piston without rings Honda H23A1 d87.0 STD (13010-P14) Teikin (Piston with pin, without piston rings) | 38158 STD |
| Piston without rings Honda H23A1 d87.0+0.50 (13010-P14) Teikin (Piston with pin, without piston rings) | 38158 0.50 |
| BELT TIMING BELT | TB354 |
| BELT TIMING BELT | TB378 |
| Complete set of gaskets | GV030 |
| Upper gasket set | DV030 |
| Head gasket | BV030 |
| Manifold gasket | JC883 |
| Manifold gasket | JC884 |
| Gasket, exhaust pipe | 70-52303-00 |
| Stuffing box | PB353 |
| Stuffing box | PB354 |
| Basic liners Honda F20A/F22B/H23A Taiho | M459H-STD |
| Connecting rod bushings Honda F20A/F22B/H23A Taiho | R458H-STD |
| Toothed belt 112×240 Honda Contitech | CT1001 |
| Toothed belt 118×300 Land Rower 2.5 Contitech | CT 952 |
| Toothed belt 127×240 Honda Contitech | CT 804 |
| Toothed belt 70×160 Honda Accord 2.0-2.2 16V Contitech | CT 800 |
| Timing repair kit | CT1001K1 |
| Timing drive repair kit | CT 800 K1 |
| Water pump | 50 005 090 |
| Spark plug DOUBLE COPPER (RC9MCC4) Champion (RC9MCC4) | OE089 /T10 |
Frequently asked questions about the Honda H23A
How much power does the Honda H23A make?
Power output of the Honda H23A, hp: 160 - 165 (Black top: H23A, H23A1, H23A2, H23A3); 190 - 200 (Blue top: H23A VTEC). Torque, Nm: 210 - 215 (Black top: H23A, H23A1, H23A2, H23A3); 220 (Blue top: H23A VTEC).
How much oil does the Honda H23A take and which one?
Engine oil capacity: 4.3; 4.5 liters. Recommended oil: 5W-30.
Does the Honda H23A have a timing belt or chain?
The Honda H23A uses a timing belt.
Is the Honda H23A turbocharged?
No, the Honda H23A is naturally aspirated.
Does the Honda H23A need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Honda H23A last?
The typical lifespan of the Honda H23A is ~300 000 km with proper maintenance.
What is the fuel consumption of the Honda H23A?
Honda Prelude 1995: city 10.7, highway 6.3, combined 8.8 L/100 km.
What cars was the Honda H23A installed on?
Honda Accord 5 (CD) in 1993 - 1997, Accord 6 (CG) in 1997 - 2002; Honda Ascot Innova 1 (CB) in 1992 - 1996; Honda Prelude 4 (BA8) in 1991 - 1996; Rover 600 1 (RH) in 1993 - 1999.
What are the common problems of the Honda H23A?
The only serious drawback of these power units is the oil burner. Oil not only goes to waste, but also likes to ooze from all gaskets and seals. All known problems.
What engines are related to the Honda H23A?
H-series family: H22A.
