Contents: General ↡ Camshaft ↡ Valve lifters ↡ Cylinder head bolts ↡ Lubrication system ↡ Flywheel - Drive Plate Bolts ↡ Tightening torques for connections,…↡
General
Engine code
2.0 liters (4-cylinder) — 601.911
2.5 liters (5-cylinder):
- without turbocharging - 602.911
- turbocharged - 602.961
Working volume:
- 2.0 L engine - 1997 cc
- 2.5 engine - 2497 cc
Cylinder diameter (all engines) — 87.0 mm
Piston stroke (all engines) — 84.0 mm
The direction of rotation of the crankshaft is clockwise (if you look from the front of the car)
The location of cylinder No.1 is the outermost one on the camshaft drive side
Ignition order:
- 2.0 liters (4-cylinder) — 1-3-4-2
- 2.5 liters (5-cylinder): — 1-2-4-5-3
Compression pressure:
- Minimum compression pressure: 18.0 bar (approx.)
- The pressure difference between individual cylinders is up to 3.0 bar
- Compression ratio - 22.0:1
Camshaft
Axial clearance of the camshaft:
- New engine - 0.030 to 0.100 mm
- The permissible limit is 0.150 mm
Camshaft Bearing Clearance:
- New engine - 0.050 to 0.091 mm
- The permissible limit is 0.150 mm
Valve lifters
- Maximum clearance between the camshaft cam flat and the tappet (see paragraph 9) — 0.40 mm
Cylinder head bolts
Maximum length
- bolts M10x80 mm - 83.6 mm
- bolts M10x102 mm - 105.6 mm
- bolts M10x115 mm - 118.6 mm
Lubrication system
Minimum oil pressure
- At idle speed - 0.3 bar
- At 3000 rpm - 3.0 bar
Flywheel - Drive Plate Bolts
- Maximum diameter - 8.0 mm
- Minimum length - 22.5 mm
Tightening torques for connections, Nm
Camshaft Cover Bolts - 10
Bolts for fastening the pulley/damper to the crankshaft hub - 25
Original material on the website [Mercedesman.ru]
Crankshaft hub mounting bolt (see paragraph 5):
Bolt with spring washers - 320
Bolt with conical washer:
- Step 1 - 200
- Step 2 - Turn another 90
Timing Chain Cover Bolts:
- Bolts M6 - 10
- Bolts M8 - 25
Fan Pulley Bolts:
- Hex Head Bolt - 10
- Hexagon head bolt - 14
Bolt for fastening the tensioner of the auxiliary drive belt - 10
Auxiliary Drive Belt Tensioner Axis - 100
Accessory Drive Belt Guide Roller Bolt - 25
Bolts of the damper stand of the tensioner of the auxiliary drive belt:
- Top bolt - 25
- Bottom bolt - 20
Hydraulic pump for adjustable suspension system:
Hex Head Bolt - 25
Slotted bolt:
- Step 1 - 25
- Step 2 - Turn another 90°
Camshaft Sprocket Bolt:
M10 Allen Head Bolt - 65
Slotted bolt:
- Step 1 - 25
- Step 2 - Turn another 90°
Timing Chain Tensioner Plug - 40
Camshaft drive chain tensioner housing, screwed into the cylinder block - 80
Camshaft Upper Bearing Bolts - 25
Cylinder head to camshaft chain cover mounting bolts — 25
Fuel filter mounting bolts - 25
Cylinder head bolts:
- Step 1 - 15
- Step 2 - 35
- Step 3 - Turn another 90°
- Step 4 - Wait 10 minutes
- Step 5 - Turn another 90°
Engine to gearbox mounting bolts:
Manual transmission:
- Bolts M10X40 mm - 55
- Bolts M10X90 mm - 45
Automatic transmission:
- Bolts M10 - 55
- Bolts M12 - 65
Additional oil pan section mounting bolts - 10
Pan bolts:
- M6 - 10
- M8 - 25
Oil drain plug
- M12 - 30
- M14 - 25
Oil pressure relief valve plug - 50
Oil pump sprocket bolt - 32
Oil pump mounting bolts - 25
Oil Screen Boots - 25
Flywheel/faceplate boots
Step 1:
- Standard flywheel - 30
- "Dual Mass" Flywheel - 40
Step 2 - Tighten another 90-100°
Crankshaft Rear Seal Housing Boots - 10
Bolts for fastening the right and left engine mounts to the cross beam - 40
Engine mounting bolts to left and right support brackets - 25
Nut for fastening the rear support of the power unit to the gearbox - 65
Bolts for fastening the rear support of the power unit to the cross beam - 25
Bolts for fastening the crossmember of the rear support of the power unit to the bottom of the body - 35
Rear powertrain mount adjustment bot - 30
Engine shock absorber mounting bolts - 10
Engine travel limiter mounting bolts - 25
Engine travel limiter adjusting bolt - 130
Connecting rod bearing nuts:
Step 1:
- Models produced before November 1990 - 30
- Models produced after November 1990 - 40
Step 2 - Tighten another 90-100°
Crankshaft main bearing cap bolts
Bolts M11:
- Step 1 - 55
- Step 2 - Turn another 90°
Bolts M12 - 90
Coolant drain plug in the cylinder block - 30
