Replacement Turbo For AR63779 1969-1974 John Deere JD644, 644A Series, 1971-1982 John Deere JD690, 690A, 690B Series 6.6L
AVERAGE REPLACEMENT TIME
Service Technician “B” or higher
INITIAL INSPECTION AND GENERAL CARE
- Carefully inspect the air cleaner, air cleaner duct, and the exhaust manifold for any foreign material. Objects left in these areas can severely damage the turbocharger immediately on engine startup.
- Remove old gaskets and left-over material from the exhaust manifold, the oil supply line and oil drain line flanges. Inspect these surfaces for cracks, flatness, or erosion.
- Inspect the oil supply and drain lines for degradation and cracking.
- Make sure that there are no kinks or any other type of restriction or clogging in either line.
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