34 SENR9977 Testing and Adjusting Section i02285307 Fuel Injection Timing - Adjust 6. Insert the 27610032 Timing Pin through the hole in the fuel pump gear and through the slot in the hub. Push the timing pin fully into the hole in the body of the fuel injection pump. Table 2 Note: The 27610032 Timing Pin must be a sliding fit in the hole in the body of the fuel injection pump. g01143217 Illustration 42 7. Release the locking screw (4). Remove the spacer (5). Tighten the locking screw (4) to 31 N·m (23 lb ft). 8. Remove the four setscrews and the four washers and then remove the fuel pump gear from the hub on the fuel injection pump. g01134728 Illustration 41 9. Install the idler gear.
Refer to Disassembly and Assembly, “Idler Gear (Front) - Install”. (1) Hole for timing pin for the fuel pump (2) Hole for camshaft pin (3) Hole for crankshaft pin 10. Install the fuel pump gear over the 27610032 Timing Pin and engage with the idler gear. 1. Set the number one piston at top center on the compression stroke. Refer to Testing and Adjusting, “Finding Top Center Position for No. 1 Piston” for the correct procedure. 11. Loosely install the four washers and the four setscrews. 12. Rotate the fuel pump gear counterclockwise in order to take up the backlash in the gear train and then tighten the four setscrews to 28 N·m (20.7 lb ft). Note:
Do not remove the timing pins after finding top center on the compression stroke. 13. Release the locking screw (4). Install the spacer (5) under the head of the locking screw. Tighten the locking screw (4) to 12 N·m (9 lb ft). 2. Remove the four setscrews and the four washers and then remove the fuel pump gear from the hub on the fuel injection pump. 3. Remove the idler gear. Refer to Disassembly and Assembly, “Idler Gear (Front) - Remove”. 14. Remove all three timing pins and install the removed components. 4. Install the fuel pump gear on the hub of the fuel injection pump shaft and install the four setscrews and the four washers. 15. Check the fuel injection timing again.
Refer to Testing and Adjusting, “Fuel Injection Timing - Check”. 5. Turn the fuel pump gear until the slot in the hub is aligned with the hole in the fuel injection pump body. Required Tools Part Number Part Description Qty 27610032 Timing Pin 1