Engine Rebuild Guide, Break-In and Tune-Up Check Crankcase Ventilation System 1. Inspect crankcase ventilation system for restrictions. Lack of ventilation causes sludge to form in crankcase. This can lead to clogging of oil passages, filters, and screens, resulting in serious engine damage. 2. Clean crankcase vent tube (A) with solvent and compressed air if restricted. Install and tighten hose clamps securely.
RG10239 –UN–09JUL99 Crankcase Vent Tube A—Crankcase Vent Tube DPSG,OUO1004,919 –19–30JUN99–1/1 CTM100 (06APR04) 02-010-17 P OWER T ECH 10.5 L & 12.5 L Diesel Engines 040604 PN=65 Check engine oil level more frequently during engine heavy-duty diesel engine oil within the same service break-in period. As a general rule, makeup oil should classification as recommended in this manual. See not need to be added during 100-hour break-in period. DIESEL ENGINE OIL in Group 002, Fuels, Lubricants, However, if makeup oil is required in the first 100-hour and Coolant. break-in, an additional 100-hour break-in period is required. Use a new change of John Deere ENGINE NOTE:
Some increase in oil consumption may be BREAK-IN OIL and a new John Deere oil filter. expected when low viscosity oils are used. Check oil levels more frequently. After 100 hours maximum, drain break-in oil and change oil filter. Fill crankcase with John Deere If air temperature is below -10° C (14° F), use TORQ-GARD SUPREME OR PLUS-50 or other an engine block heater. TORQ-GARD SUPREME is a registered trademark of Deere & Company. PLUS-50 is a registered trademark of Deere & Company. RG,100,JW7645 –19–05NOV99–2/2 02 010 17