5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity
View Poll Results: What should I do with my blow-by ridden motor?
Swap for a junkyard motor and do basic mods
2
15.38%
Rebuild the motor with hi-perf parts
11
84.62%
Voters: 13. You may not vote on this poll

Rebuilding motor with badass parts vs. putting in used motor from junkyard?

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Old Apr 19, 2010 | 05:55 PM
  #11  
Shea@L&N Performance's Avatar
FormerVendor
Joined: Oct 2009
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From: Boone, NC
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most all of them have blowby, its just a matter of how bad it is
 
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Old Apr 19, 2010 | 05:55 PM
  #12  
oglejust's Avatar
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From: paris illinois
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o and think of it this way.. ull spend at least 2k on a used engine, u can rebuild a lot cheaper than that
 
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Old Apr 19, 2010 | 06:06 PM
  #13  
Red_Rattler's Avatar
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From: Columbus WI
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Rebuild... You might end up with another "problem" motor outa the deal. Rebuild it so you know what you have and itll be good to go when its all said and done. They had a master rebuild kit on ebay for 550 bucks
 
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Old Apr 19, 2010 | 06:11 PM
  #14  
monster12valve's Avatar
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From: willowick, ohio
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rebuild cheaper and you know what your getting. i would just do a in truck rebuild..
 
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Old Apr 19, 2010 | 06:55 PM
  #15  
85_305's Avatar
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From: Buffalo, NY
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Originally Posted by oglejust
id throw some rings and headstuds and call it good... put a cam in if u got the money
Really thats it?? You dont think the motor needs anything else?

Originally Posted by oglejust
o and think of it this way.. ull spend at least 2k on a used engine, u can rebuild a lot cheaper than that
Damn 2gs? How much labor to take out old motor and put in new one you think?

Originally Posted by Red_Rattler
Rebuild... You might end up with another "problem" motor outa the deal. Rebuild it so you know what you have and itll be good to go when its all said and done. They had a master rebuild kit on ebay for 550 bucks
So 550$ for a master rebuild, how much SHOULD a shop charge to rebuild my motor?

Originally Posted by monster12valve
rebuild cheaper and you know what your getting. i would just do a in truck rebuild..
You can do that? How much would a shop charge you think?
 
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Old Apr 19, 2010 | 09:05 PM
  #16  
HAYMAFIA's Avatar
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Joined: Apr 2008
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From: Tulia, TX
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I have bought a few complete motors. never had problems, but i know the guy that i got them from really well and he will gaurantee them to run and run well. but the engine i rebuilt is a powerhouse and i have no complaints.
 
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Old Apr 19, 2010 | 11:52 PM
  #17  
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Joined: Apr 2010
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call all your local shops and get a price.... they will tell you how much is the estimate.... they wont give you an out the door price before they do the work just incase they run into a problem.

and i wouldnt go with the cheapest shop... i would go with the average one or one with a good rep.

you dont want to have to get the engine rebuild twice..
also ask for the warranty if they have any on it.





(this was a few years ago)
i had a freind they bought a dirt cheap 350. but it was the cheapest place to get an rebuilt engine in north texas (andrews motors). he put the first engine in the truck.. had to take it back out cause it was screwed up. 2nd one did the same thing....3rd one in turned over and ran... but was still acting weird.... 40 miles down the road... the k5 burned to the ground.....

needless to say that engine place has been closed down for a while now. weather the fire was caused buy the engine or something my buddy did when installing it, i don't know, but i do know he has installed atleast 20 others for customers and they never came back with problems.

unfortantly that engine placed closed there doors and shutdown when my friend tried to to have them look at what happen... so he is left out of 900 cash and a burnt down truck...


they choice is yours ! but i know i would spend a little more to get it done right. because i know i cant do it.
 
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Old Apr 20, 2010 | 06:51 AM
  #18  
85_305's Avatar
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From: Buffalo, NY
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Thanks for the input guys. I'll be taking my truck to an awesome local diesel shop rec'd by another d-b member. They are currently working on the truck right now
 
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Old Apr 20, 2010 | 07:59 AM
  #19  
5.9Bronco...eventually's Avatar
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well if it were me I would do just run the engine you got into the ground while you save up money to do build a monster engine ha. I would just rebuild it and be done. I would also add a few of the cheap go fast goodies also
 
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Old Apr 20, 2010 | 08:21 AM
  #20  
Drothgeb's Avatar
Diesel Enthusiast
Joined: Jan 2010
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From: Maryland
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You've got to know what you've got before you make a plan!!!

Check your compression before you do anything else! If it's low, you need rings, now check your bearings. If the compression is not low, then don't worry about the blow-by.

Don't put a lot of faith in your local shop's opinion. Mine tried to sell me a new IP, because of a leaky tappet cover gasket.
 

Last edited by Drothgeb; Apr 20, 2010 at 08:24 AM.
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