3408B and 3408C Industrial and Marine Engines Caterpillar


Camshaft Bearings

Usage:

3408B 1LG



Illustration 1g01379884

(A) Install the camshaft bearings with the oil holes in the horizontal position. Angle of installation ... 90 ± 15 degrees

Note: Two different camshaft bearings are used. Install the wider camshaft bearings in the two outer bores. Install the narrow camshaft bearings in the inner bores.

(B) Bore in the camshaft bearings after installation

Outer bearings ... 69.969 ± 0.048 mm (2.7547 ± 0.0019 inch)
Inner bearings ... 69.982 ± 0.061 mm (2.7552 ± 0.0024 inch)



Illustration 2g01379891

The camshaft bearings are installed from the front face of the cylinder block to the following distance.

(C) ... 803.1 ± 0.5 mm (31.62 ± 0.02 inch)

(D) ... 593.9 ± 0.5 mm (23.38 ± 0.02 inch)

(E) ... 409.7 ± 0.5 mm (16.13 ± 0.02 inch)

(F) ... 225.6 ± 0.5 mm (8.88 ± 0.02 inch)

(G) ... 4.6 ± 0.5 mm (0.18 ± 0.02 inch)

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