1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

handle on factory lift pump

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Old 02-17-2010, 07:55 PM
cummins12v 93's Avatar
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Default handle on factory lift pump

Does anybody know wat the valve handle is for on a factory lift pump? Somebody told me 2 move it to the down position & it gives more power thought I would investigate it further before I go playing with it thanx
 
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Old 02-17-2010, 08:03 PM
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Its just to prime it after a fuel filter change.
 
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Old 02-17-2010, 10:20 PM
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Originally Posted by RSWORDS
Its just to prime it after a fuel filter change.
exactly. leave it where its at dont mess with it unless you suck it dry
 
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Old 02-18-2010, 12:10 PM
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Cool thanx guŸs idk wat I would do on this thing w/o you guys
 
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Old 02-18-2010, 08:32 PM
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that will actually let the fuel bleed back to the tank.
 
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