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  1. #1
    Veteran Member gsganzer's Avatar
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    Jun 2003
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    1,556
    Location
    Denton, TX
    Tractor
    L3800 w/FEL and BH77, BX 2200 w/FEL and MMM

    Default Air Compressor Repair

    I have a single stage Ingersoll air compressor in my home shop. It developed a problem that prevents it from charging to greater then 80 psig. The deadband on the switch is set at 90psi (decreasing) and 120psi (increasing). Therefore the motor tries to run continuously until the thermal overload kicks it off. Obviously the compressor should (and used to) be able to charge to >125 psi.

    Anyone run into this yet. Before I pull the head off and inspect the internals, is there a quick way to tell if it's the rings, checkvalves, internal relief etc?

    The compressor is only about 4 years old and really doesn't have that many hours on it. I've also changed the oil at least annually if not more frequently. I'd be surprised if it needs rings already. Any help would be appreciated.

  2. #2
    Epic Contributor Bird's Avatar
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    Mar 2000
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    39,489
    Location
    Texas

    Default Re: Air Compressor Repair

    I'm not familiar with the internals of an Ingersoll compressor, but for a wild guess, it sounds as if a valve is stuck or broken. Does that compressor have reed valves? I've had the same thing happen with an oilless compressor; i.e., just keep running but couldn't get up its normal pressure when a reed valve was broken. And if that's the problem, it's easily fixed. At least I'd start by removing the head and checking the valves.

  3. #3
    Elite Member wushaw's Avatar
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    Mar 2005
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    3,075
    Location
    Bristol Texas
    Tractor
    Kubota L2800, 15 hp 372 Mitsubishi

    Default Re: Air Compressor Repair

    A valve or reed is dirty, stuck. If you still have your owners manual it should tell you what parts you need. IR has a web site with a list of owners manuals and parts for ordering.

  4. #4
    Veteran Member gsganzer's Avatar
    Join Date
    Jun 2003
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    1,556
    Location
    Denton, TX
    Tractor
    L3800 w/FEL and BH77, BX 2200 w/FEL and MMM

    Default Re: Air Compressor Repair

    Thanks guys. That's what I'm thinking, stuck valve. I get some blowback out the air filter, which helps me think it's a stuck or dirty reed valve or the like. I'll tear into it tomorrow and report back with the ailment/fix.

  5. #5

    Join Date
    Jul 2005
    Posts
    240
    Location
    Philomath, Oregon
    Tractor
    Mahindra - 2615

    Default Re: Air Compressor Repair

    I have a big 2 stage 25 CFM and when I first got it and fired it up it took a long time to build pressure. Nothing obviously wrong and sounded good. I pulled the head and it had broken the reed valve mounting plate and the piece had wedged open one of the reeds. I found a replacement (whole valve plate assembly) at grainger. good luck....

  6. #6
    Veteran Member gsganzer's Avatar
    Join Date
    Jun 2003
    Posts
    1,556
    Location
    Denton, TX
    Tractor
    L3800 w/FEL and BH77, BX 2200 w/FEL and MMM

    Default Re: Air Compressor Repair

    Found the problem. I was using the compressor real hard the other week, when I was staining and laquering my kitchen cabinets. Apparently the head became hot enough to melt the cheap plastic inlet filter/silencer (why would IR use a cheap plastic intake filter on an otherwise quality compressor?). Some of the melted plastic got under the intake reed valve and hardened.

    It'll cost me a new set of gaskets, I couldn't salvage the grafoil one when I pulled the head apart. I aslo ordered a good Solberg intake filter/silencer made of metal.

  7. #7
    Epic Contributor Bird's Avatar
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    Mar 2000
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    39,489
    Location
    Texas

    Default Re: Air Compressor Repair

    Congratulations. Always nice when it isn't anything too serious. And I've noticed that a lot of compressors and shop vacs come with less than optimal filters.

  8. #8
    Platinum Member
    Join Date
    May 2005
    Posts
    954
    Location
    Farwell, Michigan
    Tractor
    JD 2010

    Default Re: Air Compressor Repair

    Larry,
    I have tried several times to purchase items from Grainger but they will not sell to me because I am not a business. Any suggestion on how to get around the business requirement. Before I retired I was working in California and used my employer as the business reference.
    Farwell

  9. #9
    Old Timer Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    51,818
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Air Compressor Repair

    How about farm/business?

    In my county, a Farm does not even need an occupational license... items produced and sold on the farm that do not incorporate outside taxed items can be sold tax free. Animal feeds can be purchased tax free, and ag equipment can be purchased at 2.5% sales tax vs 7% sales tax.

    Perhaps you coud become a farm?

    Soundguy

  10. #10
    Advertiser kennyd's Avatar
    Join Date
    Jul 2003
    Posts
    12,598
    Location
    Westminster, MD
    Tractor
    John Deere 4110, 455AWS

    Default Re: Air Compressor Repair

    </font><font color="blue" class="small">( I have tried several times to purchase items from Grainger but they will not sell to me because I am not a business. Any suggestion on how to get around the business requirement. )</font>


    I work for Verizon, when I go into Grainger, or another place like that, I just tell them who I work for and say it will be a "Cash Ticket" It has always worked for me...

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