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Engine Mechanical - 2.3L: Specifications Mercedes-Benz C-class W202 facelift

Mechanical

Crankcase Capacity

Oil capacity is 6.1 qts. (5.8L) if draining crankcase and replacing oil filter.

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
Accessory Drive Belt Pulley Mounting Bolts22 (30)
Camshaft Bearing Cap Bolts16 (21)
Camshaft Sprocket Flange Bolt
Step 115 (20)
Step 2Turn Additional 60°
Camshaft Sprocket Nut48 (65)
Center Transmission Mount Bolt-To-Transmission18 (25)
Connecting Rod Bolt
Step 1 (New Bolt)33 (45)
Step 1 (Used Bolt)22 (30)
Step 2 (New Or Used Bolt)Turn Additional 90°
Crankshaft Main Bearing Cap Bolt
Step 141 (55)
Step 2Turn Additional 90-100°
Crankshaft Pulley Center Bolt221 (300)
Cylinder Head Bolt (12-mm)
Step 141 (55)
Step 2Turn Additional 90°
Step 3Turn Another Additional 90°
Cylinder Head-To-Timing Case Cover Bolts
Step 113 (18)
Step 2Turn Additional 90°
Drive Plate Bolts
Stretch Shank Bolts
Step 130 (40)
Step 2Turn Additional 90°
Straight Stretch Shank Bolts
Step 133 (45)
Step 2Turn Additional 90°
Flange-To-Camshaft Bolts48 (65)
Front Engine Mount Bolt-To-Frame18 (25)
Oil Pan Bolt-To-Engine
8-mm18 (25)
Oil Pan-To-Transmission Bell Housing Bolt30 (40)
Oil Pump Mounting Bolts18 (25)
Oil Pump Sprocket Bolt24 (32)
Timing Chain Cover-To-Engine Bolts18 (25)
Timing Chain Tensioner
Chain Tensioner Housing-To-Timing Cover59 (80)
Chain Tensioner End Piece30 (40)
Vibration Damper Bolt221 (300)
Water Pump Bolts
8-mm18 (25)
INCH Lbs. (N.m)
Camshaft Adjuster Armature Bolt
Step 144 (5)
Step 2Turn Additional 90°
Cylinder Head Front Cover Bolts
6-mm89 (10)
End Cover Bolts89 (10)
Oil Pan Bolt-To-Engine
6-mm89 (10)
Water Pump Bolts
6-mm89 (10)
Water Pump Pulley Bolts89 (10)

TORQUE SPECIFICATIONS

GENERAL SPECIFICATIONS

ApplicationSpecification
Displacement140 Cu. In. (2.3L)
Bore3.58" (90.9 mm)
Stroke3.41" (86.6 mm)
Compression Ratio8.8:1
Fuel SystemME-SFI

GENERAL SPECIFICATIONS

CRANKSHAFT MAIN BEARINGS SPECIFICATIONS

ApplicationIn. (mm)
Crankshaft
Journal Diameter
Standard2.2814-2.2820 (57.950-57.965)
1st Repair Size2.2716-2.2722 (57.700-57.715)
2nd Repair Size2.2618-2.2623 (57.450-57.465)
3rd Repair Size2.2519-2.2525 (57.200-57.215)
4th Repair Size2.2421-2.2427 (56.950-56.965)

CRANKSHAFT MAIN BEARINGS

CONNECTING RODS SPECIFICATIONS

ApplicationIn. (mm)
Connecting Rod Pin Bushing Bore
Without Bushing Installed.964-.965 (24.50-24.52)
Connecting Rod Pin Bushing
Inside Diameter.8664-.8666 (22.007-22.013)
Connecting Rod Length5.866 (149.00)
Connecting Rod Width
(Bearing Bore & Bushing Bore).864-.866 (21.95-22.00)
Connecting Rod Bore Diameter
Without Bearing Installed2.031-2.032 (51.60-51.62)
Connecting Rod Bore Permissible Out-Of-Roundness.0007 (.02)
Connecting Rod
Maximum Bend.002 Per 3.93 (.05 Per 100.0)
Maximum Twist.004 Per 3.93 (.10 Per 100.00)

CONNECTING RODS

PISTONS, PISTON PINS & PISTON RINGS SPECIFICATIONS

ApplicationIn. (mm)
Pistons
Piston Projection.024-.062 (.62-1.6)
Pins
Piston Fit(1)
Rod Fit (Play).0002-.0007 (.007-.018)
Rings
End Gap
No. 1.001-.002 (.03-.06)
No. 2.0003-.0019 (.01-.05)
No. 3.0007-.0023 (.02-.06)
Side Clearance
No. 1.0011-.0027 (.03-.07)
No. 2.0007-.0015 (.02-.04)
No. 3.0003-.0019 (.01-.05)
(1) Interference fit.
(1)Interference fit.

PISTONS, PINS & RINGS

CYLINDER BLOCK SPECIFICATIONS

ApplicationIn. (mm)
Cylinder Bore
Standard Size
Group "A"3.5787-3.5790 (90.900-90.906)
Group "X"3.5790-3.5792 (90.907-90.912)
Group "B"3.5792-3.5794 (90.913-90.918)
Repair Size
Group "A"3.5984-3.5987 (91.400-91.406)
Group "X"3.5987-3.5989 (91.407-91.412)
Group "B"3.5989-3.5991 (91.413-91.418)
Cylinder Block Height
Standard11.391-11.395 (289.35-289.45)
Minimum11.383 (289.15)
Maximum Allowable Deck Warpage.001 (.03)
Maximum Allowable Warpage
Top Contact Surface.0011 (.03)
Bottom Contact Surface.0015 (.04)
Peak-To-Valley Height (Waviness) Top Contact Surface.0004-.0003 (.012-.009)

CYLINDER BLOCK

CYLINDER HEAD SPECIFICATIONS

ApplicationSpecification
Bolt Length
Standard4.02 (102)
Maximum4.13 (105)
Cylinder Head Height
Standard5.350-5.354" (135.9-136.0 mm)
Minimum5.334" (135.5 mm)
Maximum Warpage
Lengthwise.0031" (.08 mm)
AcrossZero
End Of Valve Stem-To-Base Of Camshaft Bearing Bore
Standard Size Camshaft
Intake Valve.991-1.011" (25.18-25.70 mm)
Exhaust Valve.912-.933" (23.18-23.70 mm)
Repair Size Camshaft
Intake Valve.98-1.00" (24.93-25.45 mm)
Exhaust Valve.902-.923" (22.93-23.45 mm)
Valve Seat Inserts
Intake & Exhaust Valves
Seat Angle45°
Correction Angle Top35°
Correction Angle Bottom58°
Valve Seat Width.03-.04" (.9-1.1 mm)
Seat Insert Runout.001" (.03 mm)
Valve Guides
Intake & Exhaust
Cylinder Head Valve Guide Bore
Inside Diameter
Standard.4921-.4925" (12.50-12.51 mm)
Standard 1.4933" (12.53 mm)
Repair Size 1.4999" (12.70 mm)
Valve Guide Outside Diameter
Standard.4936-.4940" (12.54-12.55 mm)
Standard 1.4944-.4948" (12.56-12.57 mm)
Repair Size 1.5015-.5015" (12.74-12.74 mm)
Valve Guide Inside Diameter Intake & Exhaust.2755-.2761" (7.000-7.015 mm)
Valve Guide Length1.4763" (37.5 mm)

CYLINDER HEAD

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