Why is My Stihl Chainsaw Not Oiling?

A Stihl chainsaw is a popular landscaping tool known for its efficiency and cutting power. However, like any machine, it can encounter issues that affect its performance, such as problems with the oiling system. When a chainsaw is not oiling properly, it can lead to increased friction, overheating, and premature wear of the chain and bar. This article delves into the potential causes of oiling issues in Stihl chainsaws and provides expert guidance on troubleshooting and resolving these problems.

Common Causes of Oiling Problems in Stihl Chainsaws

There are several factors that can contribute to oiling problems in Stihl chainsaws. Some of the most common causes include:

1. Insufficient Oil in the Tank: If the oil tank is empty or has insufficient oil, the chainsaw will not be able to lubricate the chain and bar properly.
2. Clogged Oil Channels: Over time, sawdust, dirt, and debris can accumulate in the oil channels, obstructing the flow of oil to the chain and bar.
3. Improper Oiler Adjustment: Stihl chainsaws have an oiler adjustment mechanism that regulates the flow of oil. If this adjustment is not set correctly, it can result in insufficient or excessive oiling.
4. Faulty Oil Pump: The oil pump is responsible for delivering oil to the chain and bar. If the oil pump is damaged or malfunctioning, it can lead to oiling problems.
5. Worn-Out Bar and Chain: A worn-out or damaged bar and chain can also affect the oiling performance of the chainsaw.

Troubleshooting and Resolving Oiling Problems

To address oiling problems in Stihl chainsaws, follow these troubleshooting steps:

1. Check the Oil Tank: Ensure that the oil tank is filled with the appropriate bar and chain oil. Refill the tank if necessary.
2. Clean the Oil Channels: Use a wire brush or compressed air to clean the oil channels, including the bar groove, oil holes, and oil pump. Remove any debris or obstructions that may be blocking the oil flow.
3. Adjust the Oiler: Locate the oiler adjustment mechanism on the chainsaw. Adjust it counterclockwise to increase the oil flow. Refer to the chainsaw’s user manual for specific instructions on oiler adjustment.
4. Inspect the Oil Pump: If cleaning the oil channels does not resolve the issue, inspect the oil pump. Disconnect the spark plug, remove the clutch assembly, and examine the oil pump for damage or wear. Clean the oil pump using gasoline, a wire brush, and a rag. Replace the oil pump if necessary.
5. Maintain the Bar and Chain: Regularly flip the bar to ensure even wear and replace it when necessary. Ensure that the chain tension is properly adjusted, as a loose chain can also impact oiling.

Conclusion

By following the troubleshooting steps outlined in this article, you can identify and resolve oiling problems in your Stihl chainsaw. Regular maintenance and proper care of the chainsaw, including cleaning, adjusting, and replacing worn parts, will help ensure optimal performance and extend the life of the tool. If you encounter persistent oiling issues or suspect a more complex problem, it is advisable to consult with an authorized Stihl dealer or a qualified chainsaw technician for further assistance.

References:

1. Stihl MS250 not oiling – Arborist, Chainsaw & Tree Work Forum
2. Chainsaw Not Oiling the Chain and Bar? Here’re 5 EASY Fixes! – Power Tool Savvy
3. How to Fix a Stihl Chain Saw Bar When the Oil Pump is Not Working | Hunker

FAQs

Why is my Stihl chainsaw not oiling the chain?

There are several possible reasons why your Stihl chainsaw is not oiling the chain. These include:

• Insufficient oil in the oil tank
• Clogged oil channels
• Improper oiler adjustment
• Faulty oil pump
• Worn-out bar and chain

How do I check the oil level in my Stihl chainsaw?

To check the oil level in your Stihl chainsaw:

• Place the chainsaw on a flat surface.
• Remove the oil tank cap.
• Check the oil level. The oil should be visible in the tank and reach the “Full” mark.
• If the oil level is low, refill the tank with the appropriate bar and chain oil.

How do I clean the oil channels on my Stihl chainsaw?

To clean the oil channels on your Stihl chainsaw:

• Remove the bar and chain from the chainsaw.
• Use a wire brush or compressed air to clean the oil channels, including the bar groove, oil holes, and oil pump.
• Remove any debris or obstructions that may be blocking the oil flow.

How do I adjust the oiler on my Stihl chainsaw?

To adjust the oiler on your Stihl chainsaw:

• Locate the oiler adjustment screw on the chainsaw. It is usually located on the bottom of the saw, near the front.
• Turn the adjustment screw counterclockwise to increase the oil flow.
• Refer to the chainsaw’s user manual for specific instructions on oiler adjustment.

How do I check the oil pump on my Stihl chainsaw?

To check the oil pump on your Stihl chainsaw:

• Disconnect the spark plug.
• Remove the clutch assembly.
• Inspect the oil pump for damage or wear.
• Clean the oil pump using gasoline, a wire brush, and a rag.
• Replace the oil pump if necessary.

How often should I replace the bar and chain on my Stihl chainsaw?

The frequency of bar and chain replacement depends on usage and cutting conditions. However, as a general guideline:

• Replace the bar when it becomes worn or damaged.
• Replace the chain when it becomes dull or stretched.
• Regularly flip the bar to ensure even wear.

What type of oil should I use in my Stihl chainsaw?

Stihl recommends using their own brand of bar and chain oil, which is specially formulated for their chainsaws. However, you can also use other brands of bar and chain oil that meet the following requirements:

• ISO VG 100 viscosity
• Good adhesion to metal
• High flash point
• Low pour point

What should I do if I have tried all of the above and my Stihl chainsaw is still not oiling?

If you have tried all of the above troubleshooting steps and your Stihl chainsaw is still not oiling, it is advisable to take it to an authorized Stihl dealer or a qualified chainsaw technician for further assistance. They can diagnose the problem and perform any necessary repairs.