Quantcast FIGURE 4-46.  ENGINE TIMING HOLE LOCATION - TM-9-2815-259-24_146

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ARMY TM 9-2815-259-24 AIR FORCE TO 38G1-125-2 MARINE CORPS 09249A/09246A-24 4-66 FIGURE 4-46.  ENGINE TIMING HOLE LOCATION (f) Check rocker arms on Number 1 cylinder, refer to Figure 4-47.  If both rocker arms are loose, the engine is set with No. 1 Piston at TDC.  If both rocker arms are not loose, engine is one full revolution (360º) away from TDC, rotate engine slightly and repeat steps c and d.   (2)   Set Engine with No. 4 Piston at TDC Compression Stroke. NOTE Setting engine with No. 4 Piston at TDC Compression stroke is required in many different maintenance steps and is not a stand alone maintenance procedure. (a)     Remove rocker arm cover, refer to paragraph 4.7.1. (b)     Remove cover plate from timing hole (1, Figure 4-46). (c)     Position timing pin (JDE81-4) in timing hole (1, Figure 4-46). (d)     Position flywheel rotation tool (JDG820) in hole (2) and insure that tool meshes with flywheel gear.


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