EJCP.PARTS

BMW 1.8 M42

The BMW M42 is a straight-4 DOHC piston engine produced from 1989 to 1996.[1] Following BMW's typical construction techniques, the motor incorporates a durable cast-iron block and aluminum head. Weight-saving measures include aluminum chain cases, oil sump, motor mount arms, accessory mounts and a cartridge-style oil filter housing. Closely related to the single cam M40, the DOHC 16 valve head and chain-driven cams provided a notable increase in power. It was used in North American versions of the E36 318i instead of the M40. The M42 also incorporated other performance features such as a forged steel crankshaft and welded tubular stainless steel exhaust manifold instead of the more typical cast-iron items. BMW also fitted hydraulic motor mounts to decrease the inline four's inherent noise, vibration and harshness (NVH) compared to the smoother inline sixes already in production at that time.

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
1.8 ALUMINUM ALUMINUM SOHC MPFI

ITEMS

BRACKETS EXHAUST MANIFOLD INTAKE MANIFOLD OIL PAN PISTON
SENSORS TIMING COVER TIMING SET VALVE COVER VALVE INFORMATION

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
1.8 91-92 318 ****** ****** ******** 92 CONV ONLY
1.8 92 318 ****** ****** ******** SEDAN COUPE ONLY
1.8 93-95 318 ****** ****** ******** 94+ HAS BREATHER ON VALVE COVER BACK

VALVE INFORMATION

MAKE MODEL YEAR RANGE
****** ******* *******
TYPE HEAD DIAMETER STEM DIAMETER O.A.L. GROOVES LOCATION
EXHAUST ***** ***** ***** ***** ******
INTAKE ***** ***** ***** ***** *****

OIL PAN

OIL PAN FOR SEDAN COUPE 92-95
ONE PIECE PAN

OIL PAN FOR CONVERTABLE 91-92
TWO PIECE PAN

INTAKE MANIFOLD

INTAKE MANIFOLD 91 ALL 92 CONVERTABLE

INTAKE MANIFOLD
92-94 SEDAN/COUPE THROUGH 12/93
93-94 CONVERTABLE THROUGH 12/93

INTAKE MANIFOLD
94-99 318I FROM 1/94
96-98 Z3

SENSOR

CAMSHAFT SENSOR CONVERTABLE 91-92

CAMSHAFT SENSOR SEDAN COUPE 92-95

CRANKSHAFT SENSOR 91-92

CRANKSHAFT SENSOR 93-95

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