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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

schematics for JD450CA

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Author  [Modern View]

04-09-2014 17:34:47

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I have a diesel leak and don"t see any sign of where it"s going. I need a schematic to try and locate the leak and have no experience with these machines. Any help would be appreciated.

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04-10-2014 19:14:47

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 Re: schematics for JD450CA in reply to surefire423, 04-09-2014 17:34:47  

A few diagrams of lines

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04-10-2014 19:08:04

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 Re: schematics for JD450CA in reply to surefire423, 04-09-2014 17:34:47  
If you don't see the leak - how do you know there IS one? Besides the fuel feed lines and return lines - fuel can also leak into the engine oil via the injection pump.

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roy suomi

04-10-2014 04:18:16

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 Re: schematics for JD450CA in reply to surefire423, 04-09-2014 17:34:47  
It's a pretty simple system.. fuel line with the shut-off valve from the tank runs down the side of the transmission to the lift pump.. from the lift pump it goes to the fuel filter.. From there it runs to the injector pump thru an elbow fitting at the pump.. Return fuel starts at the injector pump out the top cover, runs up to injector leak-off lines .. across the top of the injectors , down the back of motor and back to fuel tank.. So , where's it leakin' ??

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