Cylinder Head and Valves 02 020 8 RG8774 –UN–19MAY98 Rocker Arm Assembly Identification 9. Reference mark flywheel (A) as shown with engine locked at No.1 TDC compression stroke. IMPORTANT: DO NOT insert timing pin full depth into cylinder block when rotating engine flywheel until reference mark is within a few degrees of a full crankshaft revolution to eliminate possibility of crankshaft counterweight bending timing pin. RG8229 –UN–05DEC97 10. Remove both timing pins and rotate engine flywheel one full revolution (360 ° ) until timing pin (B) enters slot in crankshaft again. Engine will now be locked at No. 6 TDC compression stroke.
Locking Engine at No.6 TDC A—Flywheel Reference Mark B—Timing Pin 11. Check and adjust, as needed, valve clearance (lash) on intake valves Nos. 3, 5, and 6 and exhaust valves Nos. 2, 4, and 6 (shaded locations). Adjust preload on injectors Nos. 1, 2, and 4 (shaded locations). 12. Tighten intake and exhaust valve adjusting screw lock nuts to specifications. Specification Intake and Exhaust Valve Adjusting Screw Lock Nuts— Torque 50 (37 lb-ft) ............................................................................. Tighten EUI adjusting screw lock nuts to specifications.
Specification Electronic Unit Injector Adjusting Screw Lock Nuts—Torque 65 (48 lb-ft) .............................................. CTM100 (06APR04) 02-020-8 P OWER T ECH 10.5 L & 12.5 L Diesel Engines Continued on next page RG,RG34710,63 –19–16OCT00–5/6 040604 PN=80