D15A3 was an analogue to D15A1, but with a multipoint fuel injection system. The power was 60 HP 5,500 rpm, and the torque was 99 Nm 3,500 rpm. D15A2 was a version with a 8 valve SOHC head and the compression ratio of 10 with an electronic fuel injection system. The compression ratio was 9.2, the power was 76 HP 5,500 rpm, and the torque was 114 Nm 3,500 rpm.

D15A1 was the first version with a 12-valve SOHC head with a carburetor fuel injection system. Honda D15B (D15A) engine modifications and differencesġ. Since 2002, they started replacing this engine with L15. The size of D15B fuel injectors was 240 cc.Īlong with D15, D-series also included D12, D13, D14, D16, D17, and ZC. The size of D15B throttle body was 56 mm. The valve clearances for D15B were 0.2 mm for intake valves, and 0.25 mm for exhaust valves.Įlectronic injection system was mainly used in these engines, but the first versions used carburetors. Valves were to be adjusted after every 24,000 miles. This information can be found below.įor D15, a timing belt was used to be replaced after every 60,000 miles of mileage. Later, versions with 8 valve head and 16 valve head were produced. The cylinder block was covered with a non-VTEC SOHC head with 3 valves per cylinder. Inside it, they installed a 84.5 mm stroke crankshaft, 74 mm pistons and 134 mm long connecting rods, which resulted in the displacement of 1.5 liters. The D15A cylinder block was made of aluminum and had cast iron sleeves, and its deck height was 207 mm. Production of Honda D-series engines started in 1984, and the first representative of this family was D15A created for Honda CRX. Honda D15B (D15A) engine reliability, problems and repair Normal engine operating temperature, ☌ (F) Honda D15B/D15A engine specs Manufacturer

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