| BMW M42 |
| Manufacturer: |
BMW |
| Production: |
1989–1996 |
| Predecessor: |
BMW M12 |
| Successor: |
BMW M44 |
| Class: |
DOHC Straight-4 |
| Engine: |
1.8 L (1796 cc/109 in³) |
| Related: |
BMW M40 |
The BMW M42 is a DOHC 16-valve I4 piston engine first built for the E30 318is 1989 year model. The engine block is based on the BMW M40, used on the 318i, but had distinctive features such as double overhead cams driven by a timing chain, hydraulic valve lifters, and an increased 10:1 compression ratio.
Profile gaskets on M42s built before 1993 are known to fail prematurely.
Models
| Engine |
Displacement |
Power |
Torque |
Redline |
Year |
| M42B18 |
1.8 L (1796 cc/109 in³) |
101 kW (136 hp) @ 6000 |
172 N·m (127 ft·lbf) @ 4600 |
6500 |
1989 |
| 106 kW (140 hp) @ 6000 |
175 N·m (129 ft·lbf) @ 4500 |
|
1992 |
M42B18
Displacement for the M42B18 was 1.8 L (1796 cc). E30 318iS and early E36 318iS/318ti (prior to 1992) models were fitted with versions producing 101 kW (136 hp) and 172 N·m (127 ft·lbf), later, change in the overhead cam design helped to achieve 106 kW (140 hp) and 175 N·m (129 ft·lbf) coping with the increased weight of the E36 models. The engine uses Bosch M1.7 fuel injection.
Applications:
- 1989-1991 E30 318iS
- 1992-1996 E36 318iS/318ti
|
