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Fordson Tractors Discussion Forum

Re: Fuel dripping from pneumatic governor breather

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05-02-2014 18:18:24

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Is this for sure on oil for injector pump? This is a 3 cylinder diesel with a Simms pump. I just want to make sure because I have seen any information stating that this is the case in my manual
I would appreciate any information I can get to confirm this


I've got a new lift pump on the way

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05-02-2014 23:32:02

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 Re: Fuel dripping from pneumatic governor breather in reply to Sleestak, 05-02-2014 18:18:24  
No the diesel pump is not lubricated by oil on the pneumatic governor equipped pumps, it is lubricated by diesel that is bled down from the pumping elements.

On the mechanical governed pump on the later Dexta and Super Dexta, the Minimec, oil is used to lubricate the governor only, the pumping elements and cam box are still lubricated by diesel.

At least that was correct when I was a Simms trained engineer back in the day and working on these tractors.

Yes I would suspect you have a leaking lift pump diaphragm. That is the usual cause of excess diesel in the cam box.

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05-03-2014 07:17:18

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 Re: Fuel dripping from pneumatic governor breather in reply to Majorman, 05-02-2014 23:32:02  
Thanks for your input and clearing this up for me Majorman!


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