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

lift pump leaking

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Old Apr 3, 2011 | 08:16 PM
  #1  
jdbigblue12v's Avatar
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Default lift pump leaking

have a leaking lift pump and wodering if it could be a gasket or a bad lift pump. im not great with diesel yet so i dont know what to start replacing first
 
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Old Apr 3, 2011 | 09:57 PM
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is it oil leaking or diesel??
 
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Old Apr 4, 2011 | 05:20 PM
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its leaking diesel
 
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Old Apr 4, 2011 | 08:34 PM
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hmm did you check the lines going into or leaving the pump? do you still have the stock lift pump?
 
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Old Apr 4, 2011 | 10:04 PM
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umm most likely its the gasket i had the same problem and it was the gasket if its the original lift pump then is over 20 years old just go and pick up a new lift pump there cheap and it comes with a gasket there easy to replace
 
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Old Apr 5, 2011 | 02:41 PM
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yaa its the original lift pump. do you suggest getting a whole new one or a gasket?

thanks
 
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Old Apr 5, 2011 | 11:40 PM
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Originally Posted by austinward
umm most likely its the gasket i had the same problem and it was the gasket if its the original lift pump then is over 20 years old just go and pick up a new lift pump there cheap and it comes with a gasket there easy to replace
The gasket wouldn't cause it to leak diesel it would cause it to leak motor oil.
 
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Old Apr 6, 2011 | 08:43 PM
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just go and get a new one there not that expensive but you really are better off putting in a new pump and a gasket but make sure you find out the proper tourqe specs when u install the new one or eles you will just tear the gasket and have wasted ur mony not to mention wasted your money
 
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Old Apr 6, 2011 | 09:22 PM
  #9  
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ok thanks everyone i willl most likely get a new one and does anyone know a site where i can get the torque specs from?
 
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