Service Procedures: Notes

If the ventilation system should become plugged it may cause excessive engine crankcase sludge formation and rough or erratic engine idle. It is very important that the ventilator valve be cleaned at regular intervals. See chart for regular servicing intervals below.

Servicing Intervals

1961

⁽¹⁾10, 000 miles

1962

⁽¹⁾8, 000 miles

1963

⁽¹⁾6 months

⁽¹⁾	Under cold weather conditions where vehicle speeds are slow and engine temperatures are low, more frequent servicing of the ventilator valve is needed.