3408C & 3412C INDUSTRIAL ENGINES Caterpillar


Valve Mechanism Covers

Usage:

3408C


Left Hand Service Engine

Valve Cover Arrangement

(X) Rear face of block.

(Y) Adapter.

(Z) Adapter and cap assembly.

(1) Coat joints with 3S6252 Sealant on both ends.

(2) Tighten the bolts for the base to ... 14 ± 4 N·m (10 ± 3 lb ft)

(3) Tighten the bolts for the cover to ... 14 ± 4 N·m (10 ± 3 lb ft)

(4) Cap assembly.

(5) Adapter and seal. Lubricate joint surface and seal with clean engine oil. Freeze adapter to at least -18°C (-1°F).

3412C


Right Hand Service Engine


Left Hand Service Engine

Valve Cover Arrangements

(X) Rear face of block.

(1) Length of seal in valve cover ... 1409.7 ± 6.4 mm (55.50 ± .25 in)

(2) Torque for bolts ... 14 ± 4 N·m (10 ± 3 lb ft)

(3) Torque for bolts ... 14 ± 4 N·m (10 ± 3 lb ft)

(4) Length of seal for valve cover base ... 1625.6 ± 6.4 mm (64.00 ± .25 in)

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