Timing Chain And Chain Tensioner

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2023 Porsche Panamera, 2022 Porsche Panamera, 2021 Porsche Panamera, 2020 Porsche Panamera, and 2019 Porsche Panamera. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Timing Chain And Chain Tensioner Components Location With Torque Specification

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Timing chain and chain tensioner

1	Timing chain, bank 1 (cylinders 1-4) 122 chain links
	Parts included with tensioning rail
2	Tensioning rail for bank 1 only available with timing chain for bank 1.
3	Collar axle, M8 > Tightening torque 23 Nm (17 ftlb.)
4	Collar axle, M6 with shoulder > Tightening torque 9 Nm (6.5 ftlb.)
5	Collar axle, M6 > Tightening torque 9 Nm (6.5 ftlb.)
6	Guide rail
7	Screws, M6 x 20 > Tightening torque 9 Nm (6.5 ftlb.)
8	Guide pad
9	Chain tensioner
10	Seal/replace if damaged
11	Timing chain, bank 2 (cylinders 5-8) 124 chain links
12	Guide rail
13	Screws, M6 x 16 > Tightening torque 9 Nm (6.5 ftlb.)
14	Guide pad
15	Screws, M6 x 20 > Tightening torque 9 Nm (6.5 ftlb.)
16	Chain tensioner
17	Tensioning rail
18	Collar axle, M8 > Tightening torque 23 Nm (17 ftlb.)