In all but very exceptional cases there is nothing wrong with the chainsaw and what appears to be an oil leak is simply oil that has sprayed from the chain as it rotates at high speed, draining from the saw body and guide bar.
There are some simple steps that can reduce oil leaking from the chainsaw but it’s important to understand why chainsaws leak oil in the first place. All chainsaws have an oil tank which is designed to store special oil until it’s pumped through to the guide bar by the oil pump. If you need to keep oil in the tank, then the best way to vent your chainsaws oil tank is to lay the chainsaw on its side with the oil cap pointing upwards and open the cap slightly.
If you see any chainsaw oil leak right under the bar area, it will be the chainsaw bar which leaks the oil. If the amount of oil that is being leaked is significantly higher than chainsaw bar oil consumption, that’s not something normal. Alright, we’ve been taken through the reasons why the chainsaw bar is leaking oil from the bar section.
The problem with leaving a chainsaw unused for long periods is that oil will leak from the bar and onto anything below it – this means that if you leave your chainsaw out in the open, chances are there’ll be an oily patch on the floor every time you go back to use it again. If the chainsaw you’ve got is still leaking oil while idle, even after changing the seal on the fuel pump, then there may be an issue with another part of your chainsaw. If you are tired of chainsaw oil leaking on the floor when not in use, then follow these simple steps to store your chainsaw without having any issues.
Hello, I have a mac 130 2.0 saw with the manual oiler, and I have replaced the tank, taken EVERYTHING out of the tank, including the part that the plunger rod goes into, and I can not see a check valve of any sort in the system to stop the oil from leaking out. I have scoured the internet for this problem, and no one seems to know why or HOW to fix this problem. I am at a loss as to how these saws did not leak bar oil when they were new Any help with this problem would help.
do chainsaws leak bar oil Related Question:
Do Stihl chainsaws leak bar oil?
This condition is deemed to be normal for any chainsaw with a similar bar & chain lubricating system. If the unit continues to seep oil after a few days, the problem may be the vacuum relief valve located in the side of the engine housing between the oil output hole and the bar stud(s).