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    Volvo D9 rocker arm / valve adjust ?

    I have 2006 Volvo D9 500HPs. User manual shows at 1000 hrs that the 24 rocker arms / valve adjustments is required. I think the lifters in all D series are hydraulic like car engines. As hydraulic lifters self adjust to take up any slack, why is this adjustment required ? The solon floor in...
  2. V

    D9-500 Marine shutdown

    I have a pair of 2006 D9, 500HP marine engines. Sometimes if I push the throttle up from slow to fast to rapidly an alarm goes off and engine goes to safe mode idle. Either engine will do it, sometimes both. The CPU must be reset by turning off on the engines to get full operation restored...
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