C6.6 Industrial Engine Caterpillar

Illustration 1	g02330776
Typical example

Tighten the exhaust manifold bolts in the sequence that is shown in illustration 1 to the following torque. ... 44 N·m (32 lb ft)

To measure the flatness of the exhaust manifold, follow step 1 to step 4.

1. Remove all bolts and spacers from the exhaust manifold.

2. Install two spacers and bolts into holes eleven and twelve of port one of the exhaust manifold.

3. Tighten the bolts to a torque of 44 N·m (32 lb ft).

4. Use a suitable feeler gauge to measure the gap that is between port six (holes nine and ten) of the exhaust manifold and the cylinder head.

The maximum amount that the gap should be is ... 1.4 mm (0.05512 inch)

For the correct procedures to remove and install the exhaust manifold, refer to Disassembly and Assembly.