Maintenance
7.1.8
Engine tightening torques
*1=Pre-tightening 30 Nm +/- 3 Nm (22 ± 3 lb-ft)
Final tightening 62° +/-2° rotation angle
Resulting expansion 0.200 +/- 0.015 mm (0.008 ± 0.0006”)
7.1.9
Engine runtime
The 911 GT3 Cup (991) engine is designed for a
maximum speed of 8500 rpm, the service interval is
50 hours
.
Component
Screw
dimensions
Tightening torque
[Nm]
Engine
Engine mount to body
M10
65 (48 lb-ft)
Crankshaft and crankcase
Connecting rod
M10 x 1.25
*1
Oil pump
M8
23 (17 lb-ft)
Crankshaft bolt/nut
M8
23 (17 lb-ft)
Pulley to crankshaft
M14 x 1.5
170 (125.4 lb-ft)
Sealing screw, pressure control and
safety valve
M18 x 1.5
40 (29.5 lb-ft)
Crankcase oil drain plug
M20 x 1.5
50 (37 lb-ft)
Water drain plug cyl. 1-3
M10 x 1
10 (7.4 lb-ft)
Water drain plug cyl. 4-6
M10 x 1
10 (7.4 lb-ft)
Flywheel
M10
Refer to 1.8
Cylinder head
Cylinder head bolt
M10
Refer to 1.7
Camshaft housing
Camshaft housing to cylinder head
M8
Pre-tightening: 23 (17
lb-ft)
Final tightening: 28
(20.7 lb-ft)
Knock sensor
M8
23 (17 lb-ft)
Spark plugs
M12 x 1.25
22 (16.2 lb-ft)
Do not install spark plugs more than five times
Camshaft sprocket to camshaft
M12 x 1.5
30 (22 lb-ft) + 90°
Chain case on crankcase
M8
23 (17 lb-ft)
Valve cover on camshaft housing
M6
9.7 (7.2 lb-ft)
Camshaft bearing cover
M6
13 (9.6 lb-ft)
Auxiliary units
Pulley on generator
55 (40.6 lb-ft)
Lambda sensor
M18 x 1.5
50 (37 lb-ft)
Flywheel coupling
M8 x 45
33 (24.3 lb-ft)
Oil drain plug on oil tank
M20 x 1.5
60 (44.3 lb-ft)
NOTE
Version: 16.12.2014
297
911 GT3 Cup (991)
MY 2015
