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Repair Center  Quick Fix: How to Replace the Valve Plate on an Air Compressor

Why Read This Article?

  • Learn how to properly repair an air compressor that produces little to no pressure.

Article Breakdown

Repair Information:
Difficulty: Easy
Duration: 25 minutes
Frequency: As needed   Replacing the valve plate 1. Remove the feed tube.
2. Remove the cylinder head.
3. Remove the valve plate.
4. Install the gaskets onto the new valve plate.
5. Secure the new valve plate and cylinder head onto the cylinder.
6. Reinstall the feed tube.

Video

Tools & Materials

  • Screwdriver
  • Socket Wrench
  • Wrench

Quick Fix: How to Replace the Valve Plate on an Air Compressor

November 8, 2012
Keep the pressure constant on your pressure washer by replacing the valve plate on your air compressor.
If your air compressor produces little to no pressure, you probably have a faulty valve plate. Replacing the valve plate in your compressor is a repair that anyone can complete with a few basic tools. Follow the steps below to get your compressor back in action.  

    Find this valve plate and more by visiting our Porter Cable compressor parts page.   Replacing the valve plate

1. Remove the feed tube

First, drain all of the air out of the compressor.   

 

Then use a adjustable wrench to remove the feed tube that's connected to the cylinder head and the tank.  

 

2. Remove the cylinder head

Use a socket wrench to remove the cylinder head, then set it aside.  

 

3. Remove the valve plate

Once you have removed the cylinder head, pull the old valve plate off of the unit.  

 

4. Install the gaskets onto the new valve plate

When you open up your new valve kit, you'll notice that it includes some new gaskets. Make sure to install these new gaskets onto your valve plate before it's placed in the cylinder head.
 

 

5. Secure the new valve plate and cylinder head onto the cylinder

Set the new valve plate assembly onto the cylinder and place the cylinder head over the valve plate.  


Then secure the cylinder head with the four bolts that were removed in step two.
 

 

6. Reinstall the feed tube

 Re-attach the feed tube to the cylinder and tank.  

  [Back to Top]   Conclusion And it's just that easy to replace the valve plate in your air compressor. Although we used a Porter Cable air compressor in this video, the steps in this article should apply to most other brands.   Don't forget to browse our huge selection of compressor parts here.   [Back to Top] What We're About  

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