Technical Values

TIGHTENING TORQUE SPECIFICATION

Location	Des...	Type	Basic val...
Screws securing coolant distributor housing to crankcase		Tightening torque	33 N.m (24 ft lb.)
Screws securing oil cooling collection pipe to cylinder head	Item 9	Tightening torque	13 N.m (9.5 ft lb.)
Courtesy of PORSCHE CARS NORTH AMERICA, INC. Collection pipe for transmission cooling
Cylinder head to crankcase: Step 1	Internal Torx, M12 x 1.5 x 140 (6x) - External Torx, M12 x 1.5 x 140 (2x)	Initial tightening	5 N.m (3.5 ft lb.)
Cylinder head to crankcase: Step 2		Tightening torque	50 N.m (37 ft lb.)
Cylinder head to crankcase: Step 3		Loosen all screws	0 N.m (0 ft lb.)
Cylinder head to crankcase: Step 4		Tightening torque	4 N.m (3 ft lb.)
Cylinder head to crankcase: Step 5		Subsequent tightening	12 N.m (9 ft lb.)
Cylinder head to crankcase: Step 6	Screws, item 1-4 according to tightening sequence - set threshold torque of 15 N.m (11 ft lb.) using Quantec wrench for angular tightening	Torque angle	65 Grad
Cylinder head to crankcase: Step 7	Screws, item 5-8 according to tightening sequence - set threshold torque of 15 N.m (11 ft lb.) using Quantec wrench for angular tightening	Torque angle	60 Grad
Cylinder head to crankcase: Step 8	Screws, item 1-4 according to tightening sequence - set threshold torque of 15 N.m (11 ft lb.) using Quantec wrench for angular tightening	Torque angle	65 Grad
Cylinder head to crankcase: Step 9	Screws, item 5-8 according to tightening sequence - set threshold torque of 15 N.m (11 ft lb.) using Quantec wrench for angular tightening	Final tightening torque angle	60 Grad
Chain housing screw		Tightening torque	15 N.m (11 ft lb.)
Chain housing screws		Initial tightening	5 N.m (3.5 ft lb.)
Chain housing screws		Torque angle	90°
Bearing pins for guide rail/tensioning rail for cylinder bank 1	Item 3 and 4	Tightening torque	10 N.m (7.5 ft lb.)
Courtesy of PORSCHE CARS NORTH AMERICA, INC. Tensioning rail and guide rail
Bearing pins for guide rail/tensioning rail for cylinder bank 2	Item 3, 4 and 5	Tightening torque	10 N.m (7.5 ft lb.)
Courtesy of PORSCHE CARS NORTH AMERICA, INC. Tensioning rail and guide rail for cylinders 4-6