Model #919184190 CRAFTSMAN Air compressor

  • Tank Assy
    3 Results
  • Pump Assy
    3 Results
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Question and Answers

Q:

air compressure problem 919184190

A:

Thanks for the inquiry and for using SearsPartsDirect.com.

I am sorry you are having a problem with the air compressor. If the unit is not building pressure like it should, the air compressor probably has something broken inside the cylinder.

Before you take the compressor apart, listen and feel for air leaks. Check to see if air is coming back out of the intake filter. If air is coming back out of the intake filter, the tank check valve is the problem. If you feel air coming out of the intake when it is running I suspect the valve plate is broken.

Also check the tubing connections to the pump. If the connections are fine, you have to remove the head. The head is secured with four bolts.

Directly under the head is the pressure plate. The pressure plate has reeds on it that direct the air into the discharge line and keep the air from going back into the cylinder of the compressor. Check the reeds for warping or breaking. If the reeds are damaged, you must replace the pressure plate. Make note of how the pressure and seal sit on top of the cylinder.

If the pressure plate looks fine, I recommend setting it aside and inspect the piston and the cylinder. What usually happens is the piston ring wears and allows air to blow past the piston. When this happen the compressor will run longer and may never come up to full pressure. To repair this problem I recommend replacing the piston ring and the cylinder. Most compressors have a kit available that contains the piston, ring, cylinder, and the seals. Any time you take the pump apart, the gaskets should be replaced.

I hope this helps and thanks for using SearsPartsDirect.com. We appreciate your business.  

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Jeff Wallace Sr -
Sears Technician
December 08, 2014
Q:

slow pump up and burnt oul smell . 919184190 Craftsman Air compressor

A:

Thanks for your question- we see that no one from the community responded.  If you still require assistance on this topic, please resubmit your question with any updated information and we will have one of our experts take a look.  Also, we have updated our site to include information regarding common repairs and diagnosis, which can be found here: www.searspartsdirect.com/repair-help.html.  If you are looking for your owner’s manual, it can be found here: http://www.searspartsdirect.com/partsdirect/user-manuals.  Thanks for visiting SearsPartsDirect.com.

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Natasha12 -
Sears Technician
January 14, 2014
Q:

I have model # 91918419 Air compressor. What is meant when you say to make sure your reed valves are sealing. 919184190 Craftsman Air compressor

A:

Searspartsdirect.com is always a great resource to find the answers to your parts questions. Your Sears partsdirect expert will research your question and respond within two business days but usually sooner. Thank you for using Searspartsdirect.com!

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Julio -
May 03, 2013
A:

Searspartsdirect.com is always a great resource to find the answers to your parts questions.
Your Sears partsdirect expert will research your question and respond within two business days but usually sooner.
Thank you for using Searspartsdirect.com!

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Henry -
May 06, 2013
A:

It's possible for the check valve to cause this problem, but normally the compressor will not restart (after some air is used) and the breaker will trip when the check valve is bad. If the reeds are bad (or not sealing) you will usually feel warm air at the air intake (on the head) as the compressor is running. The warm air will be blowing out of the air intake.

Most often my experiences with the symptoms you're describing are from bad rings on the compressor piston or a blown head gasket. Since you just serviced the head, I doubt that the gasket is the problem. Did you also replace the piston/rings while you were doing the other stuff, or did you just replace the reeds and gaskets on the head? If you didn't do anything with the piston and rings then that's most likely the cause of the compressing problems.

Thank you for using Manage My Life!

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Wade_B -
Sears Technician
May 06, 2013
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