Chainsaws are the most efficient products to exist. Not only are the devices versatile, but they also ease the process of a user who is employing a chainsaw to cut off either a thick trunk of a tree or clear up the additional and thin luring branches on the sides of a tree.

Within the market, Stihl’s chainsaws have gained widespread recognition due to the reliability and credibility of their manufactured device. Despite the problems that occur with the chainsaw, such as why does my stihl chainsaw leak bar oil, consumers continue to proceed with purchasing the brand. 

It’s time we now investigate why does my stihl chainsaw leaks bar oil and also try to formulate a solution that is quick to implement and effective in its purpose. 

Why Does My Stihl Chainsaw Leak Bar Oil? 

It is, in fact, frustrating how leaking oil from the chainsaw can cause inconveniences for the users. Also, the leaking is inferring additional costs for the consumers as they would have to refill the bar oil over and over again as the one already present keeps on leaking. 

However, why does my chainsaw leak bar oil? What is that you are doing wrong, resulting in this consequence? 

More Than Required Bar Oil Has Been Added 

The answer to your rising concern is that a chainsaw only tends to leak the installed bar oil when the liquid is present within the machine in an extreme amount. Meaning you have refilled the bar oil tank beyond the capacity it can hold. 

Therefore, this results in a leakage whereby the additional added bar oil flees the tank through leaking. Users often undertake this step to avoid refilling the tank and save on the time that would cost them when engaging in this endeavor.

Nevertheless, while they hold on time invested in filling the tank, they are incurring additional costs resulting from unnecessary bar oil leakage. 

Seals For Oil

An alternative cause to why does my stihl chainsaw leak bar oil is that the seals in the oil tank have been damaged. This has happened either because the seal has grown old and has, in turn, worn out due to the continuous and excessive use of the machine. 

The seal for oil is present within the space chain and the bar on a chainsaw, simultaneously serving the primary purpose of preventing any leakages. Hence, it is of great importance to ensure that the seals are in good condition before you take on a new project. 

Failure of The Pump

Another typical reason why does my stihl chainsaw leak bar oil lies in the failure of the pump. A pump is present in every chainsaw and is responsible for keeping track of a successful oil transmission from the bar oil tank to the bar and the chain. 

When the pump malfunctions and is not delivering its work, there will be leakage. This will arise because the pump is not transferring the bar oil successfully due to its internal component fault, resulting in a leakage. 

Now the thing to wonder is what is wrong with the pump that has caused its failure. The answer to this is simple: the pump has been clogged due to excessive filth and dirt housing itself within it. 

Broken Cover of the Sprocket 

One of the leading causes of the leakage of the contained bar oil is that the cover of the sprocket has broken. A sprocket cover supports and shields the surrounding chain on the chainsaw as it involves movements.

 

Without a sprocket cover, the chain on your equipment will be unable to move around freely. However, when the sprocket cover is either loosened or damaged, it will leak the bar oil. 

The Bar is Damaged 

We have listed all the potential problems without considering the possibility of the bar being damaged. As likely as other causes can be the origination for why my stihl chainsaw leaks bar oil, the bar also holds an equivalent possibility of occurring. 

Users often do not take into account that the bar might be damaged and instead try to locate the problem of why the oil is leaking within other components in the chainsaw. 

If the bar has been damaged in its appearance, such that it is bent or you notice cracks. Then before proceeding to look around in the chainsaw, focus on what you have encountered and try to remedy the problem by replacing the bar with a brand new one. 

Solutions- Why Does My Stihl Chainsaw Leak Bar Oil? 

Solving the problem of why does my stihl chainsaw leak bar oil is not a challenging task at all. It would require you to first vigilantly identify the cause and then, with the same cautiousness, work on replacing the component causing the problem.

 

Once you are done swapping the pump, bar, sprocket cover, and seal, we guarantee that the bar oil will stop leaking. But this is not the remedy for one of the abovementioned problems: overfilling the tank with bar oil.

Here, and for this problem, you would have to keep an eye out for observation while you refill the tank and only add bar oil to a necessary amount. Refrain from playing smart here and overfill the tank because it will only result in extra costs and a further leakage of the excess liquid. 

Conclusion 

In this investigation, we have listed every concern that we think can be a reason for why does my stihl chainsaw leak bar oil. Also, we have proposed a few ways to fix the issue too.

So, act wisely and do not forget to consider the stated reasons and the suggested remedies.