Jakes - Coquihalla Highway

Discussion in 'Canadian Truckers Forum' started by orcen, Sep 20, 2013.

  1. Pinner

    Pinner Medium Load Member

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    Feb 14, 2010
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    I seem to remember Nate having the same problem with loaded super b's flying past him down hill when he was empty...
     
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  3. CbarM

    CbarM Heavy Load Member

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    Jan 17, 2011
    Irvine, AB
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    I wouldnt recommend running it at much more then 1800 for extended periods of time...you will end up with bent pushrods. Everybody seems to be scared to take an engine over 2100, but there is a youtube vid with a C15 block, crank, rods n pistons that they turned over at 7400RPM for 10 mins n no issues. I will at times let my engine run to 2300-2400 but not for long. How much boost are you making at 1800???
     
  4. Prairie Boy

    Prairie Boy Road Train Member

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    Edmonton, AB
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    Cummins are the ones that told me to run mine up to 2350 RPM. Never had any issues with any of the N14's I've had.
     
  5. orcen

    orcen Heavy Load Member

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    Jun 30, 2013
    Brisbane, QLD Australia
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    I took my turbo apart and found a nice hole inside.. needless to say with a new turbo and actual backpressure things seem to be working nicely now...
     
  6. thelongwalker

    thelongwalker Light Load Member

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    Aug 10, 2011
    Mission, British Columbia
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    Detroit DD15's are designed to jake at 2300....I do it every day coming down Helmer and Larsen and the Smasher and Shylock and 2 Mile.....
     
  7. CbarM

    CbarM Heavy Load Member

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    Jan 17, 2011
    Irvine, AB
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    I have an N14 celect + that will go passed 2300 on the pedal lol
     
  8. Prairie Boy

    Prairie Boy Road Train Member

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    Nov 18, 2010
    Edmonton, AB
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    That;s what I hAD, ONE HELL OF AN ENGINE. sorry for the caps ....
     
  9. CbarM

    CbarM Heavy Load Member

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    Jan 17, 2011
    Irvine, AB
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    Hey PB...can you recommend a shop to check out a driveline vibration/change out a U joint? Preferrably somewhere close to the yellowhead n not gonna try to rake me over the coals...?
     
  10. Prairie Boy

    Prairie Boy Road Train Member

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    Nov 18, 2010
    Edmonton, AB
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    Check your ride height to see if it's set to factory specs. If not, that changes the angle of the driveline that can cause the vibration. When I bought my Freightliner (brand new) we had to shim the steady bearing about 3/8ths of an each to stop the vibration. Try Pat's Drive Line Service.
     
  11. 2wagondragon

    2wagondragon Bobtail Member

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    Aug 1, 2013
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    DD15s have some serious jaking power. My last truck was a DD15, and the brake lights were wired to come on in third stage.
     
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