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Massey Harris & Massey Ferguson Tractors Discussion Forum
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Injection Pump Leaking Diesel Into Crankcase

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Don In Mason, T

05-03-2008 15:18:55




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I have a MF 65, that is leaking diesel into the crankcase.
What is the procedure to remove the injection pump to replace the seals on the pump drive?
Can the dealer supply these seals or are these carried only by a pump shop?
What is the make/model of the injection pump?
Regards
Don




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DavidP, South Wales

05-04-2008 03:43:35




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 Re: Injection Pump Leaking Diesel Into Crankcase in reply to Don In Mason, Texas, 05-03-2008 15:18:55  
Hi,
On high hour or older tractors it is possible for the main pump seal to leak but it is far more likely for the diaphragm in the lift pump to be leaking. Remove the pump and work the air out. Operate by hand and if it is in good condition you should hear a sort of 'donkey' noise as the air passes the valves. If not, note where the tab on the diaphragm is and remove the cover. Turn the diapgragm about 90 degrees and it will come out. If there is a hole it should not take long to find it. Kits are available as are non-gen units. If a gen one is available without costing an arm and a leg, go for it!
DavidP, South Wales

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chuck bergstrom

05-03-2008 16:45:44




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 Re: Injection Pump Leaking Diesel Into Crankcase in reply to Don In Mason, Texas, 05-03-2008 15:18:55  
I fully agree with Wayne. Almost always the lift
pump. Chuck



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Wayne IA

05-03-2008 16:34:29




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 Re: Injection Pump Leaking Diesel Into Crankcase in reply to Don In Mason, Texas, 05-03-2008 15:18:55  
Better check the diaphram in the lift pump first!



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