03 Pete 379 6 NZ 18 speed , Jake Brake issue

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Tripple7, Jun 26, 2017.

  1. Largecar359

    Largecar359 Road Train Member

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    Ok, it's hard to be certain without actually hearing it myself. However, odds are you got a little bit of valve lash. I mean it could be somewhere else but if they were just playing around with the rack then that's where I would start. Doesn't take much for one to start tapping. I had an issue where I did a valve adjustment and when adjusting the jakes one spring was over-tightened a hair, was causing the noise. No damage or anything, just was outta spec. Something to look into before running it too long.
     
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  3. Tripple7

    Tripple7 Bobtail Member

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    Jun 25, 2017
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    Ok thank that's what I'm thinking is one may be to tight.
     
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