Cylinder Block Assembly: Specifications
Engine data 997 997 SEngine type
M96/05
No. of cylinders 6
Cubic capacity 3,596 cm�
Bore 96 mm
Stroke 82.8 mm
Compression ratio 11.3 : 1 (-0.6)
Max. engine power (EU) 239 kW (325 HP)
At engine speed 6,800 rpm
Max. torque (EU) 370 Nm (274 ftlb.)
At engine speed 4,250 rpm
Max. output per litre 66.5 kW/l (90.4 HP/1)
rpm limitation via fuel feed interruption and electronic throttle
At engine speed 7,300 rpm
Idle speed 670 � 40 rpm
Engine weight 201.6 kg according to DIN 70020 A
Manual transmission*: 201.7 kg
Automatic transmission: 191.5 kg
* including double-mass flywheel
M97/01
No. of cylinders 6
Cubic capacity 3,824 cm�
Bore 99 mm
Stroke 82.8 mm
Compression ratio 11.8 : 1 (-0.6)
Max. engine power (EU) 261 kW (355 HP)
At engine speed 6,600 rpm
Max. torque (EU) 400 Nm (296 ftlb.)
At engine speed 4,600 rpm
Max. output per litre 68.3 kW/l (92.9 HP/l)
rpm limitation via fuel feed interruption and electronic throttle
At engine speed 7,300 rpm
Idle speed 670 � 40 rpm
Engine weight according to DIN 70020 A
Manual transmission*: 201.6 kg
Automatic transmission: 191.1 kg
* including double-mass flywheel
997/997S
Type 6-cylinder aluminium opposed-cylinder engine, water-cooled
Crankcase Vertically split light alloy cylinder housing with separate crankshaft bearing housing
Crankshaft Forged, supported by 7 bearings
Crankshaft bearings Plain bearings, � 63 mm, sub groove
Connecting rods Forged, l = 142 mm
Con-rod bearings Plain bearings
Pistons Pressed light alloy
Cylinders Lokasil oil running surface
Crankcase half
Tighten all screws in the cross bolt connection to the required torque in accordance with the specified tightening sequence.
Tightening Torque: 9.5 ft. lb.
Crankshaft Main Bearing
Position 14 M9 127 thrust-bearing screws manually. Pre-tighten screws to the required tightening torque in accordance with the tightening sequence.
Then tighten to the required torque angle.
Initial tightening: 15 (11 ft. lb.) Nm
Torque angle: 120°
Belt pulley on crankshaft (3.8L)
Tightening torque: 37 ft. lb.
Torque angle: 120°
Belt pulley on crankshaft (3.6L)
Tightening torque: 37 ft. lb.
Torque angle: 90°
Connecting Rod Bolts
Position the new connecting rod bolts with the associated connecting rod caps and tighten the screws by hand.
Pre-tighten connecting rod bolts to the specified torque and retighten with a torque angle wrench.
Initial tightening: 15 ft. lb.
Torque angle: 110°
Unscrew connecting-rod bolts.
Pre-tighten connecting rod bolts to the specified torque and perform the final tightening with a torque angle wrench.
Initial tightening: 15 ft. lb.
Final tightening - torque angle: 110°