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Case Tractors Discussion Forum

Restarting 990 DB after changing gas filters

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06-21-2014 12:32:33

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I pulled the top plug on the raised casting on the L end top, as the right end didn't have a plug Fuel came out. I capped it and pumped 500 times, 100 at a time, then tried to start it. Id let the starter turn while I counted 10 moderately fast. Nothing. I cracked the bolt again, and pumped it 25 times and went around to check, the fuel was being forced out, and that force had backed the plug nearly out of the casting. Tightened it, and pumped 75 more times and tried to start it. Nothing.

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06-22-2014 04:59:32

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 Re: Restarting 990 DB after changing gas filters in reply to Farmallb, 06-21-2014 12:32:33  
First off it's not gas, it's diesel. Second, you can pump till the cows come home and it's not going to do anything till you crack the fittings up on top of the injectors. Air doesn't move down very well and you surely have air trapped ahead of the fuel. All you're doing by pumping is pushing fuel past the injectors and back into the tank. or blocked by the air altogether.

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