TM 5-3825-226-24 5P6524 ENGINE TIMING INDICATOR GROUP 1.  3P1565 Collet Clamp.  2.  9S215 Dial Indicator.  3. 5P7266 Adapter.  4.  8S2296 Rod, .5.25 In.  (133.4 mm) long.  A.  3S8883 Contact Point, .50 In.  (12.7 mm) long. MEASUREMENT OF PISTON TRAVEL 1.  3P1565 Collet Clamp.  2.  9S215 Dial Indicator and 9S8883 Contact Point (A). 3.5P7266 Adapter. 4.8S2296 Rod, 5.25 In.  (133.4 mm) long.  5.  Cylinder head.  6.  Inlet port.  7.  Piston. Travel  of  piston  (7),  from  the  point  of  closing  inlet port   (6)   to   top   center,   can   be   found   by   using   the procedure that follows: NOTE The fuel system timing has a tolerance of ± 1°. NOTE:   When   reference   is   made   to crankshaft    rotation,    the    engine    is seen from the flywheel end. 1. Put   No.   1   piston   at   top   center   (TC)   on   the compression stroke. Make reference to FINDING TOP CENTER COMPRESSION POSITION FOR NO. 1 PISTON. 2. Remove timing bolt from front cover. 3. Remove  the  valve  cover  from  the  right  side  of the engine.  Remove the rocker arm assembly, and the fuel injection nozzle for No. 1 cylinder. DIAL INDICATOR INSTALLED 2.  9S215 Dial Indicator.  3.  5P7266 Adapter. 4. Put a small amount of clean oil on 8S2296 Rod (4) and put the rod in 5P7266 Adapter (3). 5. Put  adapter  (3)  in  same  hole  that  No.  1  fuel nozzle  was  removed  from.    Fasten  adapter  (3) to head with bolt and spacer from fuel nozzle. 6. Install  3P1565  Collet  Clamp  (1)  in  the  top  of adapter (3). 7. Install 9S8883 Contact Point (A) on 9S215 Dial Indicator (2) and put indicator (2) in adapter (3) thru collet (1). 8. Position the dial indicator (up or down) so small pointer is on "0" (zero) and tighten collet (1). CAUTION Do   not   tighten   collet   too   much   or damage    to    the    dial    indicator    can result. 9. Loosen the screw that locks the dial face.  Move the  dial  face  until  the  large  pointer  is  on  "0" (zero) and tighten the lock screw. 10. Turn the crankshaft a minimum of 45 degrees in a clockwise direction.  Slowly turn the crankshaft in a counterclockwise direction until a maximum reading is seen on the dial indicator.  Adjust the indicator   up   or   down   in   the   collet   until   the revolution    counter    is    at    +    .300    in.    (Black Numbers).        Tighten    the    collet    to    hold    the indicator in this position.  Loosen the bezel lock and turn the bezel until the zero on the face of the  dial  is  in  alignment  with  the  hand.    Tighten the bezel lock. 11. Slowly turn the crankshaft in a counterclockwise direction  until  the  dial  indicator  moves  beyond .020 in.  Now turn the crankshaft in the opposite direction until the dial indicator is at .020 in. 2-51