zaro

How do you remove a stripped oil filter?

Published in Vehicle Maintenance 3 mins read

To remove a stripped oil filter, you can use a hammer and chisel as a common method.

When an oil filter gets stuck or its removal tool slips because the surface is damaged (stripped), it can be frustrating. One effective technique relies on leveraging the filter's structure. As stated in the reference, you can "Use a hammer and a flat chisel tangentially against the flange of the filter and you can tap it free." This method uses force applied at an angle to the filter's edge, effectively trying to unscrew it.

Steps for Removing a Stripped Oil Filter with a Chisel

This technique requires careful execution to avoid damaging surrounding components. Here's a breakdown based on the reference:

  1. Gather Your Tools: You will need a hammer and a flat chisel. Ensure the chisel is sharp enough to bite into the metal but not so sharp it slices through it easily.
  2. Position the Chisel: Place the tip of the flat chisel tangentially against the metal base (the flange) of the oil filter, right where it meets the engine block. Tangential means placing it so that if you tapped it, the force would push the filter in a counter-clockwise direction (for loosening).
  3. Tap the Chisel: Using the hammer, strike the end of the chisel with controlled force. The goal is to make the chisel bite into the metal flange slightly and then transfer the tapping force into rotational movement to tap it free.
  4. Repeat and Rotate: Tap the chisel a few times in one spot, then reposition it slightly around the flange and repeat the tapping. Continue this process, working your way around the filter's base, applying steady taps until the filter begins to turn.
  5. Unscrew the Filter: Once the filter starts to move, you should be able to continue tapping or potentially use pliers or your hand (with gloves) to unscrew it the rest of the way.

Important Considerations

  • Safety First: Always wear safety glasses when using a hammer and chisel.
  • Protect Surroundings: Place rags or a drip pan underneath to catch any spilled oil. Be mindful of delicate components near the filter.
  • Controlled Force: Start with light taps and increase force gradually if needed. Excessive force can damage the engine block or cause injury.
  • Direction: Remember that oil filters are typically screwed on clockwise to tighten and counter-clockwise to loosen. Ensure you are tapping to rotate it counter-clockwise.

This hammer and chisel method, as referenced, provides a way to create the necessary grip and torque on a stubborn, stripped oil filter to remove it from the engine.