From 1992 to 2002, the 2.3-liter Honda H23A engine was assembled at the company’s Japanese facility and fitted to certain fourth-generation Accord and Prelude model modifications. The motor came in two different versions: one with a blue cover that was charged and the other with a black cover that did not have VTEC.
The H22A internal combustion engine is another model in the H-series.
The engine was mounted on:
- Honda Accord 5 (CD) in 1993 – 1997;
- Honda 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.
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 |
Disadvantages of the Honda H23A engine
The only significant flaw in these power units is the oil burner, which not only wastes oil but also causes it to leak from all gaskets and seals; the cooling system also has leaks, and rubber tubes frequently burst here;
Occasionally, this area experiences sensor failures, which causes the engine to become extremely dull;
Every 40,000 kilometers, valve clearances must be changed because there are no hydraulic lifters.
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 |