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Home >> Porsche >> 2017 >> Cayenne Turbo >> Repair and Diagnosis >> External Pages >> Different car >> Section 70 (15 - Engine - Cylinder Head, Valve Drive (4.8L Non Turbo) -- 92A - Cayenne (92A)) >> WM, 153319 Removing And Installing Chain Housing Cover >> Information >> Component Overview

Component Overview

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Fig 1: Chain Housing Cover Seals Components Location
G16308491Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Chain housing cover seals

1  Chain housing cover
2  Chain housing cover seal, outer right (fill openings with sealant, see 6)
3  Inner chain housing cover seal
4  Chain housing cover rib seal
5  Chain housing cover seal, outer left (fill openings with sealant, see 6)
6  Sealant application on timing chain housing; Loctite 5900 (000.043.204.35 status 10/08)
G16308492Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Applying sealant (filling openings in metal seal)

1  When chain housing cover is fitted, apply sealant to joint before fitting cylinder head covers
2  When chain housing cover is fitted, apply sealant to joint before fitting cylinder head covers
G16308493Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Applying sealant before fitting cylinder head covers

1  When chain housing cover is fitted, apply sealant to joint before fitting cylinder head covers
20 mm  Length of sealant applied to joint
Fig 2: Chain Housing Cover Screws Tightening Sequence
G16308494Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Tightening sequence for chain housing cover

A  Aluminium screw  , M6 x 30; timing-case cover to crankcase and cylinder head; always use new aluminium screws
B  Aluminium screw  , M6 x 55; inner part of timing-case cover to upper part of crankcase and cylinder head; always use new aluminium screws; outer part of timing-case cover to cylinder head
C  Aluminium screw  , M8 x 55; timing-case cover (chain tensioner position) to upper part of crankcase and cylinder head; always use new aluminium screws
D  The chain housing cover must be level with the lower part of the crankcase (use a steel rule or dial gauge)
Fig 3: Chain Tensioner, Joint Flange Components Location
G16308495Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Chain tensioner, joint flange

1  Joint flange (oil sealing lip with engine oil); align with sleeve or vibration balancer/replace 
2  Aluminium screw  , M6 x 20; always use new aluminium screws
3  Aluminium screw  , M6 x 55; always use new aluminium screws
4  Sealing ring; always replace
5  Chain tensioner
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