Join Date: Aug 2013
Location: Harker Heights, TX
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My truck is in the shop pending $$$ for the tear down but at this point the shop diagnosed my truck as having a lifter failure. They have another complete 6.0 under the bench killed by the same problem. I drove up to Asheville Engines and spoke with his machinist. He stated that the fault with the lifters were actually from the early oem pushrods were just slighty too long causing more than usual pressure / stress on the roller lifter bearings.
Here is something he sent me in an email when I was getting a quote on a engine.
Q: Lifters: Are the lifters OEM? Do you offer an updated version that will not fail after 150k like the OEM lifters do?
A: We use an OEM spec. aftermarket lifter. In my opinion, most lifter failure has to do with two things. 1) owners stretching their oil change intervals primarily due to advertised 7K-15K oil changes by the oil companies. (Change every 5,000!) 2) the original push rods in a 6.0 are all .050 to long. Ford made the change in length prior to any aftermarket companies getting their hands on them so ALL replacement pushrods are the proper length. The problem is that it is common practice by individuals and some engine builders to re-use push rods. 90% of the diesel techs (including Ford) that I talk to have no idea that new ones are shorter because Ford never sent a service bulletin on the change.
Q: Push Rods: Daniel explained to me that the length of the push rods are what cause the premature failure of the lifters so he uses shorter push rods. Does he cut or grind down OEM push rods or use shorter aftermarket rods. If so, same applies, length and brand please.
A: Answered above
btw Rob at Asheville Engines is a very pleasant man to work with. He had his shop opened up on their day off to give me a tour and answer any questions I had. Great team, alot of racing heritage, experience, and OCD. What a thorough and clean product and machine shop.
Drive it like you stole it, Or I will.
**ATTENTION SCREEN HOGS
If your signature block picture is bigger than most peoples post, maybe it's time to fix it. I suggest you tape a photo of your truck to your computer screen, then it only screws up your view.