C3.3 Industrial Engine Caterpillar

Flywheel Housing - Inspect

Usage:

C3.3 E3J

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	8T-5096	Dial Indicator Group	1

Concentricity of the Flywheel Housing

Note: This check must be made with the flywheel and the starting motor removed and the bolts for the flywheel housing tightened lightly.

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Illustration 1	g01226662
Typical example

Install Tooling (A). Tooling (A) is shown in Illustration 1.

Set the pointer of Tooling (A) to 0 mm (0 inch).

Check the concentricity at intervals of 90 degrees around the flywheel housing.

Calculate the difference between the lowest measurement and the highest measurement. This difference must not be greater than the limit that is given in Table 2.
Note: Any necessary adjustment must be made on the flywheel housing. Then, recheck the concentricity.

Alignment of the Flywheel Housing

Note: This check must be made with the flywheel and the starting motor removed and the bolts for the flywheel housing tightened to the correct torque. Refer to Specifications, "Flywheel Housing" for correct torque.

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Illustration 2	g01226662
Typical example

Install Tooling (A). Tooling (A) is shown in Illustration 2.

Set the pointer of the dial indicator on Tooling (A) to 0 mm (0 inch).

Check the alignment at intervals of 90 degrees around the flywheel housing.

Calculate the difference between the lowest measurement and the highest measurement. This difference must not be greater than the limit that is given in Table 2.

Note: Any necessary adjustment must be made on the flywheel housing.

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Table 2
Limits for Flywheel Housing Runout and Alignment (Total Indicator Reading)
Bore of the Housing Flange	Maximum Limit (Total Indicator Reading)
410 mm (16.14 inch)	0.25 mm (0.010 inch)