Lesson 2/Learning Event 3
To take an oil sample using the valve method shown in Figure 19--
Remove dust cap assembly.
With the engine idling, open (lift handle) sampling valve and drain
out about a pint of oil; then shut off sampling valve.
if sampling valve is mounted directly to the pressurized gallery, no
draining is required.
Place sample bottle under valve and fill to 1/2 inch from top, and cap
Return drained oil to reservoir.
SAMPLING VALVE METHOD