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

98 12v problems.!

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  #11  
Old 11-09-2011, 11:27 AM
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Originally Posted by 98250012v
so im new to this site.and i just bought a 1998 2500 club cab 5.9 12v
i paid 7500 of an older man who took very good care of it.
the problem i have is today i noticed i needed a clutch fan while checking to make sure it was locked up i pushed down on it and the motor turned over. harmonic balancer turned and everything and also the truck smokes.Hey i'm no diesel mechanic but i know enough that i think the motor should'nt turn over that easy but i might be wrong i'm just worried i bought the truck not even a week ago.ANy help would be greatly appreciated i have a 12 month old and alot of bills and don't have money to put into her.

my name is jamison

truck has bully dog intake bully dog 4 inch turbo back ss exhaust.
bully dog stage 2 torque plate bully dog 215hp injectors,automatic with a bigger torque convertor.

if you just bought it recently and all those mods were already done... i would go out on a limb and say the truck has had the pee run out of it. blue is usually rings or scared walls and that would explain the easy spinning over... on my 12v you could spin it over pretty easy until a compression stroke, maybe you just caught it on the downstroke. try making a full revolution. good luck
 
  #12  
Old 11-09-2011, 11:40 AM
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blue is oil no way around it. could be bad seats in the head? does it clear up when it is up to operating temperature? i would lean seat if it does. if its white there is hope. and even with a set of worn rings or leaky seats it can run and run well for a long time. it will just use oil. all is not lost. check the amount of blow by when you get a chance.
 
  #13  
Old 11-09-2011, 04:27 PM
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hey thanks for the reply i checked the oil was perfect on the dipstick.truck is at running temperature now and i pulled the oil cap and smoke came out.
put hand over it and could feel some pressure.

---AutoMerged DoublePost---

and turbo travis i could spin and spin for days get a little stiffer and then keeps going i can spin with one hand
 

Last edited by 98250012v; 11-09-2011 at 04:27 PM. Reason: Automerged Doublepost
  #14  
Old 11-09-2011, 04:38 PM
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your rings are gone. hate that that is my answer put low compression with blue smoke and blow by. its hard to argue what it is. tese engines arnt super high compression, something like 17.1 but on a compression stroke you fell it when it gets tight.
 

Last edited by turbo2332; 11-09-2011 at 05:13 PM.
  #15  
Old 11-09-2011, 05:04 PM
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I tried just now but
The clutch fan is blown so its so windy it wont stay!
Any other tricks of the trade im talking with the previous owner now.!
 
  #16  
Old 11-09-2011, 05:13 PM
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dumb of me sorry. should have thought of that. have you noted oil consumption? like a quart a month something of that nature?
 
  #17  
Old 11-09-2011, 05:38 PM
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just bought truck a week today
dont be sorry man.the altenator is on the glitch a brake line blew the day i got it and the fuel pump makes a ticking noise the fuel tank leaks i got it on a 1\2 tank filled it up and the think keeps leaking.!
the guys is cool he wants to pay for the fan and the altenator but he aint gonna pay for a rebuild

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i dont know what to do.!
 

Last edited by 98250012v; 11-09-2011 at 05:38 PM. Reason: Automerged Doublepost
  #18  
Old 11-09-2011, 05:51 PM
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rebuilds are expensive even if you do it yourself. still sucks
 
  #19  
Old 11-09-2011, 06:18 PM
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Man good luck... Does it have an exsposed air filter? I have bought two different diesel trucks that had open top air boxes and both had bad motors. Dusted cylinders suck
 
  #20  
Old 11-09-2011, 07:07 PM
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i knew it he has a k.n filter and it like dont fit right .!
F*** man this sucks i guess im gonna have to ask for my monmey back

---AutoMerged DoublePost---

which i doubt will happen but i will try i cant sell this to someone knowing that im not an a******
 

Last edited by 98250012v; 11-09-2011 at 07:07 PM. Reason: Automerged Doublepost
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