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Engine - Repair (M50): Specifications BMW 5 series E34

Mechanical

TORQUE SPECIFICATIONS

ApplicationLbs. (N.m)
Camshaft Bearing Cap Bolts11 (15)
Camshaft Sprocket Bolts16 (22)
Connecting Rod Bolts (1)
Step 117 (23)
Step 2 (Torque Angle)70 Degrees
Clutch Drive Plate17 (23)
Coolant Drain Plug (Crankcase)36-40 (49-54)
Cooling Fan Nut(2) 22 (30)
Cylinder Head Bolts (3)
Step 122-26 (30-35)
Step 2 (Torque Angle)90 Degrees
Step 3 (Torque Angle)90 Degrees
Exhaust Manifold Nuts14 (19)
Flywheel-To-Crankshaft Bolts83-96 (113-130)
Front/Rear Crankshaft End Cover Bolts (8 mm)16 (22)
Intake Manifold Bolts11 (15)
Main Bearing Cap Bolts (4)
Step 115-18 (20-24)
Step 2 (Torque Angle)50 Degrees
Oil Filter Cover20-24 (27-33)
Oil Filter Housing Bolts15-18 (20-24)
Oil Pan Cover Bolts (8 mm)15 (20)
Oil Pump Sprocket Nut18 (24)
Suspension Bar-To-Cylinder Head15-18 (20-24)
Starter Bolts35-37 (47-50)
Timing Chain Tensioner Piston Cylinder48-55 (65-75)
Timing Chain Tensioner Plug28-31 (38-42)
Upper/Lower Timing Case Cover Bolts (8 mm)16 (22)
Vibration Damper Bolts17 (23)
Vibration Damper Hub Bolt288-317 (390-430)
Water Pump Bolts (8 mm)16 (22)
INCH Lbs. (N.m)
Cylinder Head Bolts86 (10)
Cylinder Head Cover Bolts86 (10)
Front/Rear Crankshaft End Cover Bolts (6 mm)79 (9)
Fuel Injectors-To-Intake Manifold79-96 (9-11)
Oil Pan Cover Bolts (6 mm)79 (9)
Oil Pump Cover Bolts79 (9)
Thermostat Housing Bolts79 (9)
Upper/Lower Timing Case Cover Bolts (6 mm)79-96 (9-11)
Water Pump Bolts (6 mm)79 (9)
Water Pump Pulley Bolts79 (9)
(1) Use NEW, lightly oiled bolts. (2) Using 32-mm Wrench (11-5-040). Tighten nut to 29 ft. lbs.(40 N.m) if using a conventional 32-mm wrench. (3) Use NEW, light oiled bolts. Tighten bolts in sequence. (Схема №3) (4) Use cleaned, lightly oiled bolts.
(1)Use NEW , lightly oiled bolts.
(2)Using 32-mm Wrench (11-5-040). Tighten nut to 29 ft. lbs.(40 N.m) if using a conventional 32-mm wrench.
(3)Use NEW, light oiled bolts. Tighten bolts in sequence. (Схема №3)
(4)Use cleaned, lightly oiled bolts.

TORQUE SPECIFICATIONS

GENERAL ENGINE SPECIFICATIONS

ApplicationSpecification
Displacement152.2 Cu. In. (2.5L)
Bore3.307" (84 mm)
Stroke2.953" (75 mm)
Compression Ratio10:1
Fuel SystemPFI
Horsepower @ RPM189 @ 5900
Torque Ft. Lbs. @ RPM181 @ 4700

GENERAL ENGINE SPECIFICATIONS

CONNECTING RODS SPECIFICATIONS

ApplicationIn. (mm)
Bushing Pin Bore Diameter
Outside0.9449-0.9461 (24.000-24.031)
Inside0.8663-0.8665 (22.005-22.010)
Crankpin Bore Diameter
Red1.8898-1.8901 (48.000-48.009)
Blue1.8901-1.8904 (48.009-48.016)
Center-To-Center Length(1)
Maximum Bend0.0016 (0.040)
Maximum Twist0.002 (0.05)
Side Play(1)
(1) Information is not available from manufacturer.
(1)Information is not available from manufacturer.

CONNECTING RODS SPECIFICATIONS

PISTONS, PINS & RINGS SPECIFICATIONS

ApplicationIn. (mm)
Piston
Clearance
Standard0.0004-0.0016 (0.010-0.040)
Maximum0.0059 (0.15)
Diameter
Standard3.3063 (83.980)
Intermediate3.3094 (84.060)
Oversize 13.3161 (84.230)
Oversize 23.3260 (84.480)
Pins
Diameter(1)
Piston Fit(2)
Rod Fit(1)
Rings
No. 1 (Plain)
End Gap0.008-0.016 (0.20-0.40)
Side Clearance0.0008-0.0020 (0.020-0.052)
No. 2 (Tapered)
End Gap0.008-0.016 (0.20-0.40)
Side Clearance0.0008-0.0020 (0.020-0.052)
No. 3 (Oil)
End Gap0.008-0.018 (0.20-0.45)
Side Clearance0.0008-0.0022 (0.020-0.055)
(1) Information is not available from manufacturer. (2) Thumb Pressure.
(1)Information is not available from manufacturer.
(2)Thumb Pressure.

PISTONS, PINS & RINGS SPECIFICATIONS

CYLINDER BLOCK SPECIFICATIONS

ApplicationIn. (mm)
Cylinder Bore Diameter
Standard3.3071 (84.000)
Intermediate3.3103 (84.080)
Oversize 13.3170 (84.250)
Oversize 23.3268 (84.500)
Maximum Taper0.0004 (0.010)
Maximum Out-Of-Round0.0004 (0.010)

CYLINDER BLOCK SPECIFICATIONS

VALVES & VALVE SPRINGS SPECIFICATIONS

ApplicationSpecification
Intake Valves
Face Angle45°
Head Diameter1.299" (33.0 mm)
Minimum Margin(1)
Minimum Refinish Length(1)
Stem Diameter0.275" (6.975 mm)
Valve Tip Maximum Refinish(1)
Exhaust Valves
Face Angle45°
Head Diameter1.201" (30.5 mm)
Minimum Margin(1)
Minimum Refinish Length(1)
Stem Diameter0.275" (6.975 mm)
Valve Tip Maximum Refinish(1)
Valve Springs(1)
(1) Information is not available from manufacturer.
(1)Information is not available from manufacturer.

VALVES & VALVE SPRINGS SPECIFICATIONS

CYLINDER HEAD SPECIFICATIONS

ApplicationSpecification
Cylinder Head Height
New5.508-5.516" (139.90-140.10 mm)
Minimum5.494" (139.55 mm)
Maximum Warpage0.0012" (0.03 mm)
Maximum Grind0.010-0.014" (0.25-0.35 mm)
Valve Seats
Intake Valve
Seat Angle45°
Seat Width0.055-0.075" (1.40-1.90 mm)
Maximum Seat Runout0.0012" (0.03 mm)
Seat Diameter1.244" (31.60 mm)
Exhaust Valve
Seat Angle45°
Seat Width0.055-0.075" (1.40-1.90 mm)
Maximum Seat Runout0.0012" (0.03 mm)
Seat Diameter1.146" (29.10 mm)
Valve Seat Inserts
Intake
Standard
Insert Diameter1.3426" (34.100 mm)
Bore Diameter1.3386" (34.000 mm)
Oversize 1
Insert Diameter1.3504" (34.300 mm)
Bore Diameter1.3465" (34.200 mm)
Oversize 2
Insert Diameter1.3583" (34.500 mm)
Bore Diameter1.3544" (34.400 mm)
Exhaust
Standard
Insert Diameter1.2441" (31.600 mm)
Bore Diameter1.2402" (31.500 mm)
Oversize 1
Insert Diameter1.2520" (31.800 mm)
Bore Diameter1.2481" (31.700 mm)
Oversize 2
Insert Diameter1.2599" (32.000 mm)
Bore Diameter1.2559" (31.900 mm)
Installed Height
Intake & Exhaust
Standard0.287" (7.30 mm)
Oversize 10.295" (7.50 mm)
Oversize 20.303" (7.70 mm)
Installing Temperature
Valve Seat Insert240°F (-150°C)
Cylinder Head68°F (20°C)
Valve Guides
Valve Guide Bore Diameter
Standard0.4922" (12.500 mm)
Oversize 10.4961" (12.600 mm)
Oversize 20.5000" (12.700 mm)
Valve Guide I.D. (Installed)
Standard0.2756" (7.000 mm)
Oversize 10.2796" (7.100 mm)
Oversize 20.2835" (7.200 mm)
Valve Guide Installed Height (1)0.173-0.197" (4.40-5.00 mm)
Valve Stem-To-Guide Oil Clearance(2)
Installing Temperature
Valve Guide240°F (-150°C)
Cylinder Head68°F (20°C)
(1) Measured from valve guide collar to cylinder head, on camshaft side. (2) See CYLINDER HEAD under OVERHAUL.
(1)Measured from valve guide collar to cylinder head, on camshaft side.
(2)See CYLINDER HEAD under OVERHAUL.

CYLINDER HEAD SPECIFICATIONS

CAMSHAFT SPECIFICATIONS

ApplicationIn. (mm)
Bore Diameter(1)
End Play0.006-0.013 (0.15-0.33)
Journal Diameter(1)
Journal Runout(1)
Lobe (Cam) Height1.8755-1.8803 (47.640-47.760)
Lobe Lift(1)
Oil Clearance0.0008-0.0021 (0.020-0.054)
(1) Information is not available from manufacturer.
(1)Information is not available from manufacturer.

CAMSHAFT SPECIFICATIONS

VALVE LIFTERS SPECIFICATIONS

ApplicationIn. (mm)
Bore Diameter(1)
Lifter Diameter(1)
Oil Clearance(1)
(1) Information is not available from manufacturer.
(1)Information is not available from manufacturer.

VALVE LIFTERS SPECIFICATIONS

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