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Jay
11-23-2003 17:42:14
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Re: Case 580D Turbo Out of Control in reply to Ron, 11-23-2003 08:38:35
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I worked in the fuel inj. industry for eight years, and it is true that if your flex ring went out, and the weight carrier pins sheared off that you would have a runaway condition as your governor weights arn't being driven as I'm assuming that you have a Stanadyne/Roosamaster inj. pump DB/DC series, many times on a bad flex ring you will notice lack of power due to a plugged return line or check valve, or the engine will start and slowly die due too extreme housing pressure inside your pump, as the pumping pistons in your rotor and the advance piston need a pressure differential to charge and work correctly, you should have noticed some of these symptoms before the pins shearing as a plastic ring broken up into particles and steel pins are sent into the return line of your pump/injectors, another problem that could have happend is a sticky metering valve, that controls all of the fuel delivery in the pump, I have seen that scenerio many time from bad fuel, water creating rust, or tanker hauling fuel/fertilizer causing problems, if it is that it's best to send it in, as I have done them on the units, but not for the novice on pumps, also if the unit ran fine until the fuel ran out, I would check all options for air, lift pump not working-if equiped, bad new fuel, air leak on the filters, ect. not saying things don't happen, but it is strange.
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