BODY AS 2174959 - Caterpillar

Illustration 1 g00289767 (1) Thickness of new thrust plate ... 15.00 0.25 mm (.591 .010 inch) (2) Diameter of camshaft journal ... 173.80 0.03 mm (6.843 .001 inch) (3) Thickness of new plate ... 11.80 0.05 mm (.465 .002 inch) (4) Timing bolt location
Correct cam segment relationship (timing) must be observed at assembly. If the cam segments are out of time, serious engine damage will occur.
Illustration 2 g00289768
Location of dowels on the camshaft bearing journal
Illustration 3 g00469453
Location Of Dowels On The Camshaft Bearing Journal
Note: The position of the single dowel in relation to the variable dowel determines the letter designation of the cam journals. The single dowel is on the same end as the locating groove. The variable dowel is on the end opposite the locating groove. (5) Locating groove (6) Location of the single dowel in the face of the camshaft bearing journalDistance from the top of the dowel to the camshaft bearing journal ... 7.0 0.5 mm (.28 .02 inch) (7) Location of the variable dowel in the face of the camshaft bearing journalDistance from the top of the dowel to the camshaft bearing journal ... 7.0 0.5 mm (.28 .02 inch)
Illustration 4 g00289771
Letter Designation Of G3606 Camshaft Journals
Illustration 5 g00469407
Letter Designation Of G3608Camshaft Journals
(8) Camshaft bearing journalInstall the camshaft bearing journals with the grooved end toward the front of the engine. (9) Camshaft segments
Illustration 6 g00289772 (12) Specified camshaft lobe liftTo find the specified camshaft lobe lift, use the procedure that follows:
Measure the total height of the camshaft (13).
Measure base circle (14).
Subtract base circle (14) from the total height of camshaft (13). The difference is the specified camshaft lobe lift (12).
Specified camshaft lobe lift (12) for the camshaft is the following value:Exhaust lobe ... 19.500 mm (.7677 inch)Inlet lobe ... 19.500 mm (.7677 inch)Gas admission lobe ... 10.001 mm (.3937 inch)