mercury tilt trim pump rebuild


Mercury Tilt Trim Pump Rebuild: Tips for Successfully Rebuilding Your Pump

Mercury tilt trim pumps can be a lifesaver for boaters. They allow you to adjust the angle of your motor while you’re out on the water, giving you greater control over your boat’s maneuverability. But over time, your pump may break down or suffer from wear and tear. If that’s the case, you may need to rebuild your tilt trim pump. Here are some tips for rebuilding your Mercury tilt trim pump.

Why Rebuild Your Mercury Tilt Trim Pump?

Before we dive into the process of rebuilding your tilt trim pump, let’s quickly discuss why you may need to do so in the first place. There are several reasons why your pump may need to be rebuilt:

  • Your pump has become damaged due to wear and tear.
  • Your pump has started leaking fluid.
  • Your pump’s motor has stopped functioning.

If you’re experiencing any of these issues, it’s likely time to rebuild your tilt trim pump. Rebuilding your pump can save you hundreds or even thousands of dollars compared to buying a new tilt trim pump.

The Rebuilding Process

Now that we’ve discussed why you may need to rebuild your Mercury tilt trim pump, let’s delve into the process of how to do so:

  1. Remove the pump from your boat: Before you can begin rebuilding your pump, you’ll need to remove it from your boat. Follow the manufacturer’s instructions for removing the pump. Make sure to turn off the power supply and remove the battery to avoid any potential electrical hazards.
  2. Disassemble the pump: Once you’ve removed the pump, you’ll need to disassemble it. Use a wrench to remove the bolts that hold the pump together. Remove the pump’s motor and coupling as well. Be sure to keep all of the components in a safe place.
  3. Examine the pump: Once the pump is disassembled, examine each component closely. Look for any signs of wear and tear, including cracks, leaks, and worn-down parts. If you notice any issues, replace the relevant components. Be sure to lubricate all components before reassembling them.
  4. Reassemble the pump: Once you’ve replaced any worn components, reassemble the pump. Use a torque wrench to tighten the bolts, making sure not to over-tighten them.
  5. Test your pump: Once the pump is reassembled, test it to make sure it’s functioning properly. Reinstall the pump onto your boat and turn on your power supply. Run your motor and test the tilt trim pump to ensure it’s working correctly.
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Rebuilding your Mercury tilt trim pump can be a bit of a challenge, but it’s an excellent way to save yourself money while keeping your pump functioning properly. If you’re uncomfortable working on your pump, be sure to take it to a professional for repairs.


Your Mercury tilt trim pump is an essential component of your boat’s maneuverability. If you’re experiencing issues with your pump, rebuilding it can be an excellent way to save yourself some cash. By following the tips we’ve discussed in this article, you’ll be well on your way to successfully rebuilding your Mercury tilt trim pump. Good luck!