Chainsaw Repair

Typical leakage areas are where the oil tank pickup tube exits the oil tank, where this hose connects to the oil pump, where the tube from from the pump to the bar connects, and the little o-ring on the pump adjuster.

On most pumps the rotating part of the pump is machined at a angle on the end towards the adjuster. This causes the pump shaft to move back and forth when it is rotated. Where this angled end of the oil pump rubs, wears out. The repair kits for the pumps replaces this wear point.

New rubber parts or the hoses helps with oil leaks too.