Auto oiler doesn't work - McCulloch 16 Inch Gas Chain Saw MCC1635AK

Http://www.mccullochpower.com
you may need a new pump
check out there parts break down will help u find out what u need
you may not need a new oil pump you may just have blockage
clean the **** out of the parts behind the bar and clean the clutch good
the bar has the grooves the chain runs in and need to clean real good at the back where it bolts on and you will see a hole, thats where the oil goes into the bar so the chain can pick it up.
every 3 to 5 tanks of gas. or whenever you sharpen the chain you must clean the oil holes.
you may also have a pluged cap
the oil cap has a vent to let air in
if air cant get in oil cant get out. clean and inspect all the parts and you should find out if the oil pump is bad
you may just be as simple as needing cleaned
but with out oil you may have burned the pump, bar, chain , and clutch out of it.
hope this help
good luck