12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

Lift pump tick or not?

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Old Feb 19, 2010 | 10:21 AM
  #21  
12valvetater's Avatar
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You do half roll the engine 180* and then do the over half.
 
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Old Feb 20, 2010 | 07:24 AM
  #22  
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Originally Posted by 12valvetater
You do half roll the engine 180* and then do the over half.
what? im sorry but what half are you talking about?
 
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Old Feb 21, 2010 | 02:14 AM
  #23  
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It does sound like your lift pump.Mine did the same thing a couple years ago,replaced the lift pump and no more ticking.just remember that the lift pump helps supply fuel to the pump.And when the lift pump stops working it starves the pump of fuel.
 
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Old Feb 27, 2010 | 03:28 AM
  #24  
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Default FIX the TIX TIX TIX TIX TIX ?

I took care of my KDP this weekend, it was snug as a bug, but at least the shiney custom made washer will give me some peace of mind. And I had a crankshaft pulley leak anyway, it would have saved me some time to know to shove that plastic collar all the way to the wide part inside the seal to get it over the crankshaft. Stupid Felpro didn't give dummies like me instructions. I popped the seal out of the cover 3 times trying to get it on. It was like trying to use a thimble as a condom and just as painful.

Anyway, is there a cheap way to fix this ticking noise? Did my #10 fuel plate cause it or any other damage?
 
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Old Feb 27, 2010 | 03:48 AM
  #25  
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(Anyway, is there a cheap way to fix this ticking noise? Did my #10 fuel plate cause it or any other damage? )
Nope,i don't think there's a cheap way of fixing the ticking noise.And nope your #10 fuel plate didn't cause it.I have a #10 plate to.
 
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Old Mar 1, 2010 | 01:45 PM
  #26  
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contact cummins_guy he can fix your tick for 35 bucks just send him a email.
 
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Old Mar 1, 2010 | 01:55 PM
  #27  
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Dont quote me on this and I am not even sure if it is right or not but I have heard that some of the ticking in the cummins can come fromthe gears on the front of the engine the cam, injection pump ect being that they are straight cut gears... Has anyone heard of this or know if they can cause the noise?
 
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Old Mar 1, 2010 | 04:05 PM
  #28  
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Its the LP, not the gears. The rod on the LP wears and gives that steady tick. As to the gears, if they're ticking then I would think there's another set of issues.
 
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Old Mar 10, 2010 | 10:39 PM
  #29  
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Default I got too ticked at the......tick, tick,tick,tick

$140 later my tick is gone. Who ever suggested pushing the primer pump to see if the Lower Pump was causing the ticking was right. It stops ticking with a push while running. I replaced my LP in about 2 hrs. But I had removable wheel wells which gives me easy access to the sides of my cummins. I feel bad for the guy who has a real ram and not a whacked out mod like mine. Thank god the engineers made the pushrod on the LP softer than the cam lobe. ( I hope). Im not sure the contact between the pushrod and cam was the problem, didnt look worn, cupped, or mushroomed. When I push in the pushrod on the LP and let it spring back it makes a familiar click and gives me flashbacks. hmmmmmmm. I replaced the Cunningham brand LP with an Airtex brand LP from Oreilys. Does it matter?

So far, no ticking, no worries about a 140k mi LP, although I didn't have gaskets and used the orange RTV instead, should work ok? right? RIGHT? Oh well whats another oil leak? The tick is dead! Worth $140 and 2 hours of cussing for my sanity and love of Saint Cummins. Ahhhhhhhhhhhh.
 
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Old Mar 12, 2010 | 12:57 PM
  #30  
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Well I have no lift pump and mine still ticks.
 
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