Engine - Technical Data (m44) — BMW Z3 E36 (1995-2000)

11 00 Engine in general M44 B 19

Cylinder		4
Bore	Mm	85
Stroke	Mm	83.5
Effective displacement	Cm 3	1895
Compression ratio	1	10.0
Power	KW at rpm	103/6000
Max. top speed	Rpm	6500
Max. constant speed	Rpm	6000
Max. torque	Nm at rpm	180/4300
Compression pressure (approx. equal value for all cylinders)	Min. bar	10...11

ENGINE IN GENERAL M44 B 19 SPECIFICATION

11 11 Crankcase M44 B 19

Bore dia. a)	Mm	85.00 + 0.014
Intermediate bore dimension a)	Mm	85.080 + 0.014
1) Grinding dimension a)	Mm	85.250 + 0.014
2) Grinding dimension a)	Mm	85.500 + 0.014
Permitted conicity of cylinder bore a)	Mm	0.01
Permitted conicity of cylinder bore a)	Mm	0.01
Permitted total wear clearance between piston and cylinder (engine run in)	Mm	0.15
A) New condition or rework

CRANKCASE M44 B 19 SPECIFICATION

11 12 Cylinder head with cover M44 B 19

Cylinder head height standard	Mm	140.0
Machining limit	Mm	139.55
Valve guides are not available as replacement parts.
Valve guide inner dia. (installed)
Standard	Mm	6.0 H7
Size 1	Mm	6.1 H7
Size 2	Mm	6.2 H7
Tilt clearance (between valve and valve guide)	Mm	0.5

CYLINDER HEAD WITH COVER M44 B 19 SPECIFICATION

Valve seat angle	°	45
Correction angle outside	°	15
Correction angle inside	°	60
Valve seat width (dimension "B")
Intake	Mm	1.65 ± 0.25
Exhaust	Mm	1.65 ± 0.25
Valve seat diameter
Intake outside diameter	Mm	32.4
Exhaust outside diameter	Mm	30.1

CYLINDER HEAD WITH COVER M44 B 19 SPECIFICATION

11 21 Crankshaft and bearings M44 B 19

Ground sizes of main bearing journals
Standard yellow	Mm	59.984 ... 59.990
Standard green	Mm	59.977 ... 59.983
Standard white	Mm	59.971 ... 59.976
Undersize 1 (U 0.25) yellow	Mm	59.734 ... 59.740
Undersize 1 (U 0.25) green	Mm	59.727 ... 59.733
Undersize 1 (U 0.25) white	Mm	59.721 ... 59.726
Undersize 2 (U 0.50) yellow	Mm	59.484 ... 59.490
Undersize 2 (U 0.50) green	Mm	59.477 ... 59.483
Undersize 2 (U 0.50) white	Mm	59.471 ... 59.476
Radial crankshaft bearing play	Mm	0.020 ... 0.046

CRANKSHAFT AND BEARINGS M44 B 19 SPECIFICATION

Ground sizes of crankshaft thrust bearing
Standard	Mm	25.0 F8
Size 1	Mm	25.2 F8
Size 2	Mm	25.4 F8
Axial crankshaft play	Mm	0.080 ... 0.163
Ground sizes of conrod bearing journals
Standard	Mm	45.00 +0.009 +0.025
Size	Mm	44.75 +0.009 +0.025
Size 2	Mm	44.50 +0.009 +0.025
Radial conrod bearing play	Mm	0.010 ... 0.052
Max. allowed runout at center main journal Crankshaft supported on outer bearing pins	Mm	0.15

CRANKSHAFT AND BEARINGS M44 B 19 SPECIFICATION

11 22 Flywheel M44 B 19

Max. axial run-out measured on outside diameter

0.1

FLYWHEEL M44 B 19 SPECIFICATION

11 23 Vibration Damper M44 B 19

Max. radial runout	Mm	0.40
Max. axial runout	Mm	0.60

VIBRATION DAMPER M44 B 19 SPECIFICATION

11 24 Connecting Rods and Bearings M44 B 19

Ø Large connecting rod eye (without bearing)	Mm	48.000 ... 48.016
Conrod bush bore diameter Ø	Mm	22 +0.005 +0.007
Max. deviation in weight of connecting rods in one engine (without bearing shells)	G	± 4

CONNECTING RODS AND BEARINGS M44 B 19 SPECIFICATION

11 25 Pistons with rings and pins M44 B 19

Pistons and pins are matched - only replace together in pairs
Measuring point "A" (position)	Mm	13
Piston diameter (measuring point "A")
Standard Size 0	Mm	84.985
Size 00	Mm	85.065
1st oversize +0.25	Mm	85.235
2nd oversize +0.50	Mm	85.485
Piston running clearance	Mm	0.01 ... 0.04
Max. total wear clearance between piston and cylinder (engine operated)	Mm	0.15

PISTONS WITH RINGS AND PINS M44 B 19 SPECIFICATION

1st groove
End clearance a)	Mm	0.2 ... 1.0
End float a)	Mm	0.02 ... 0.20
2nd groove
End clearance a)	Mm	0.2 ... 1.0
End float a)	Mm	0.02 ... 0.10
3rd groove (three piece steel band ring)
End clearance of fins	Mm	0.4 ... 1.4
End float	Mm	Not measurable
A) Upper value is wear limit

PISTONS WITH RINGS AND PINS M44 B 19 SPECIFICATION

11 31 Camshaft M44 B 19

Pilot bearing (camshaft) width	Mm	20 H9
Pilot bearing (cylinder head) width	Mm	20 d8
Runout radial	Mm	0.040 ... 0.082
Axial running clearance	Mm	0.065 ... 0.150

CAMSHAFT M44 B 19 SPECIFICATION

11 34 Valves with springs M44 B 19

Plate Ø intake	Mm	33.0
Plate Ø exhaust	Mm	30.5
Intake stem diameter	Mm	6.0 -0.025 -0.040
Exhaust stem diameter	Mm	6.0 -0.040 -0.055
Repair valves: In addition to the standard valves, the following oversizes are also available
Shaft Ø intake stage 1	Mm	6.1 -0.025 -0.040
Shaft Ø exhaust, stage 1	Mm	6.1 -0.040 -0.055
Head dia.	Mm	0.2
Identification on stem		R1
Shaft Ø intake, stage 2	Mm	6.2 -0.025 -0.040
Shaft Ø exhaust, stage 2	Mm	6.2 -0.040 -0.055
Head dia.	Mm	0.4
Identification on stem		R2

VALVES WITH SPRINGS M44 B 19 SPECIFICATION

11 41 Oil pump with strainer and drive M44 B 19

Oil pressure at idle speed with engine at operating temperature	Min bar	0.5
Regulated pressure	Bar	4.3 ± 0.2

OIL PUMP WITH STRAINER AND DRIVE M44 B 19 SPECIFICATION

11 40 Oil supply M44 B 19

Oil change volume with oil filter

Ltr.

5.0

OIL SUPPLY M44 B 19 SPECIFICATION

Oil pressure at idle speed with engine at operating temperature	Min bar	0.5
Regulated pressure	Bar	4.3 ± 0.2

OIL PUMP WITH STRAINER AND DRIVE M44 B 19 SPECIFICATION

Oil change volume with oil filter

Ltr.

5.0

OIL SUPPLY M44 B 19 SPECIFICATION

11 52 Fan coupling M44 B 19

Fan clutch
Switch-on temperature	°C	92 ± 4
Switch-off temperature	°C	60
Tilt play of bearing (at Ø 156 mm)	Mm	± 0.65

FAN COUPLING M44 B 19 SPECIFICATION

11 53 Thermostat and connections M44 B 19

Opening temperature (stamped on housing)

°C

THERMOSTAT AND CONNECTIONS M44 B 19 SPECIFICATION

Engine - Technical Data (m44) BMW Z3 E36