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Freightliner century . Is it hard to changing the air compressor?

Discussion in 'Ask An Owner Operator' started by henboy1, Aug 23, 2018.

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  1. Aug 23, 2018 #1
    henboy1

    henboy1 Medium Load Member

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    Detroit 12.7 . I'm hearing this screeching /chattering noise right before it purges .After it purges the noise stops , so I know it's the compressor.

    Is there a trick to changing the air compressor on these older Detroit? I know get into the back with an extension will be tough . Will I need a strap to hold a heavy compressor before I take all the bolts off?
    I have done starter, AC, alternator but not the air compressor.
     
    henboy1, Aug 23, 2018
    henboy1, Aug 23, 2018
    #1
    Dave_in_AZ Thanks this.
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  3. Aug 23, 2018 #2
    UturnGirl

    UturnGirl Road Train Member

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    It should be right up front there. A couple bolts and voila. Mine went out once and I walked to a truck parts store got the part for $20 and a driver changed it out for me in under 15 minutes.
     
    UturnGirl, Aug 23, 2018
    UturnGirl, Aug 23, 2018
    #2
  4. Aug 23, 2018 #3
    henboy1

    henboy1 Medium Load Member

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    Huh? $20 for the Air compressor? This is is about a $650 part with the core . I am not talking about the governor. I can easily change that
     
    henboy1, Aug 23, 2018
    henboy1, Aug 23, 2018
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  5. Aug 23, 2018 #4
    RustyBolt

    RustyBolt Road Train Member

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    Yeah, he's thinking governor. I changed mine on a cat. They are pretty simple to do. I used a strap just to keep it from falling. Left it hooked up and used it to hold the new one while I muscled it in to place as well. Just easier, I think.
     
    RustyBolt, Aug 23, 2018
    RustyBolt, Aug 23, 2018
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  7. Aug 23, 2018 #5
    henboy1

    henboy1 Medium Load Member

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    Great response . Almost like the #### starter with a strap . The gears was easy to mesh from the starter to the flwy wheel, why i recently changed the starter .Is this compressor gear easy to mesh with the compressor gear .? I mean, will I have to force it in to meet the other gear ? I hope I explained it right
     
    henboy1, Aug 23, 2018
    henboy1, Aug 23, 2018
    #5
  8. Aug 23, 2018 #6
    win-some-loose-less

    win-some-loose-less Medium Load Member

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    Dang that’s cheap,, almost $1500 for the one on my Volvo d13 from the sltealership... that doesn’t include labor
     
    win-some-loose-less, Aug 23, 2018
    win-some-loose-less, Aug 23, 2018
    #6
  9. Aug 23, 2018 #7
    AModelCat

    AModelCat Road Train Member

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    You sure its the compressor and not the unloader chattering a bit before it unloads? Hate to see someone spend big bucks without at least seeing if there's a cheaper fix.
     
    AModelCat, Aug 23, 2018
    AModelCat, Aug 23, 2018
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    Bean Jr. Thanks this.
  10. Aug 24, 2018 #8
    henboy1

    henboy1 Medium Load Member

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    Where is the unloader located?
    The compressor is also leaking a lot of oil from the bottom
     
    henboy1, Aug 24, 2018
    henboy1, Aug 24, 2018
    #8
  11. Aug 24, 2018 #9
    UturnGirl

    UturnGirl Road Train Member

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    Ugh..sorry...
     
    UturnGirl, Aug 24, 2018
    UturnGirl, Aug 24, 2018
    #9
  12. Aug 24, 2018 #10
    RustyBolt

    RustyBolt Road Train Member

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    No need to force it. Just turn it til the gears line up. Slide it the rest of the way in and turn it to line up the bolt holes. Easy really.
     
    Last edited: Aug 24, 2018
    RustyBolt, Aug 24, 2018
    RustyBolt, Aug 24, 2018
    #10
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