Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

D12 Turbo and exhaust

Discussion in 'Volvo Forum' started by Chris ITC740, Jul 29, 2013.

Page 1 of 2
  1. Jul 29, 2013 #1
    Chris ITC740

    Chris ITC740 Bobtail Member

    40
    6
    May 21, 2013
    0
    Can someone please tell me what is behind the turbo on my D12? It almost looks like another turbo. It's cylindrical with a corrugated exterior and is clamped right behind the turbo on the exhaust. At first I thought it was part of the turbo. But now I'm not sure. It's a 2007 VED-12d, non egr set-up.
     
    Chris ITC740, Jul 29, 2013
    Chris ITC740, Jul 29, 2013
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Jul 29, 2013 #2
    bravoo67

    bravoo67 Light Load Member

    252
    35
    Mar 15, 2012
    Brooklyn NY
    0
    bravoo67, Jul 29, 2013
    bravoo67, Jul 29, 2013
    #2
    KB3MMX Thanks this.
  4. Jul 29, 2013 #3
    Damage

    Damage Light Load Member

    67
    17
    Jan 13, 2012
    Newark, Nj
    0
    As stated above it is an EPG. Its an air actuated plunger that restricts exhaust flow when turned on. To act as a brake or it also turns on when the engine is cold to help it heat up faster.
     
    Damage, Jul 29, 2013
    Damage, Jul 29, 2013
    #3
    KB3MMX Thanks this.
  5. Jul 30, 2013 #4
    Chris ITC740

    Chris ITC740 Bobtail Member

    40
    6
    May 21, 2013
    0
    Ok I had no idea what this was. So with this setup there are no internal enging brake components like a Jacobs? Also are these expensive to replace? Mine may have a crack in the housing.
     
    Chris ITC740, Jul 30, 2013
    Chris ITC740, Jul 30, 2013
    #4
  7. Jul 30, 2013 #5
    nasriza

    nasriza Road Train Member

    2,397
    2,070
    Feb 1, 2013
    Chicago, IL
    0
    There is another internal valve for the second position of the engine brake but its not as many thing as jacobs just one extra valve. As far as replacing them theyre not really cheap if i was you i would just find a housing from a junk yard and try to rebuilt youre cylinder for the brake volvo sells the rubuilt kit
     
    nasriza, Jul 30, 2013
    nasriza, Jul 30, 2013
    #5
    KB3MMX and Chris ITC740 Thank this.
  8. Jul 30, 2013 #6
    bravoo67

    bravoo67 Light Load Member

    252
    35
    Mar 15, 2012
    Brooklyn NY
    0
    On my volvo D12 I have 2 steps for "engine" brake.. EPG is one of them, another one, like stated above, is internal valve on the engine.
    EPG's tend to get stuck, limiting exhaust flow and "braking" the engine..
    I think it costs anywhere from 600 up to a $1k
     
    bravoo67, Jul 30, 2013
    bravoo67, Jul 30, 2013
    #6
    KB3MMX Thanks this.
  9. Jul 30, 2013 #7
    Chris ITC740

    Chris ITC740 Bobtail Member

    40
    6
    May 21, 2013
    0
    After closer inspection I think it's just the casting in the housing that makes it look like a crack. There is no signs of exhaust leaking. As for an engine brake mine works like crap. The techs at Volvo said it was weak when it was in for service and said I was due for a top end service. I had them due it and the engine brake is just as weak now as it was before. I wonder if my epg is stuck open? Is there an easy way to check it?
     
    Chris ITC740, Jul 30, 2013
    Chris ITC740, Jul 30, 2013
    #7
  10. Jul 30, 2013 #8
    nasriza

    nasriza Road Train Member

    2,397
    2,070
    Feb 1, 2013
    Chicago, IL
    0
    Not really but if youre epg has failed one of two way wither stuck closed which is going to make the engine choke almost all the time and youre going to have horrible mpg or its stuck open and doesnt engage this way when u have the first position on youre engine brake youre not going to feel anything going on there should be a significant difference between 1st position and second it is very possible u have a bad VCB valve and youre sencond position is not engaging giving u the idea off weak engine brake. Ots not like d12 has the best engine brake but i dont think its weak either it does the job. Check carfully if both of youre positions work and u can go from there.
     
    nasriza, Jul 30, 2013
    nasriza, Jul 30, 2013
    #8
    KB3MMX Thanks this.
  11. Aug 5, 2013 #9
    bravoo67

    bravoo67 Light Load Member

    252
    35
    Mar 15, 2012
    Brooklyn NY
    0
    I think if you want to check EPG you have to take it out and do it visually.. it might open but not all the way
     
    bravoo67, Aug 5, 2013
    bravoo67, Aug 5, 2013
    #9
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

    • Page 1 of 2