Can I fix the leak without buying a new pump?
Documented on the Ryobi 40v Chainsaw build
Published June 27, 2026
Often cleaning the pump, replacing small O-rings and the feed tubing, and reseating the fill cap will stop leaks.
Full Answer
Often cleaning the pump, replacing small O-rings and the feed tubing, and reseating the fill cap will stop leaks. Replace the pump only if cleaning and seal replacements don't restore proper oil delivery or if the pump body is cracked.
Documented In This Build
Related Knowledge
How do I know if the leak is from the oil pump or the tank?How much does it typically cost to repair an oil leak on a Ryobi 40V chainsaw?Will oil leaks affect battery or motor performance?What safety precautions should I take before disassembling the chainsaw?What torque should I use on the blade bolt?What maintenance is required to keep the runtime optimal?What were the most critical problems found on the test drive?Can these issues be fixed cheaply or will it cost a lot?
Related Parts
Bar and Chain (replacement, optional)
$30
O-ring / seal kit (oil lines and pump seals)
$8
Bar oil fill cap / gasket
$6
Oil feed tubing / oil line (replacement)
$10
Bar oil (bar and chain oil)
$10
Bar oil pump assembly (replace or service)
Ryobi (or OEM aftermarket)$22
Related Tools
Socket set / wrench (commonly 10–13 mm)
Phillips and flathead screwdrivers
Needle-nose pliers / slip-joint pliers
Shop rag and brush / toothbrush
Small container or syringe for oil testing
Pick set or small flat pry tools
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