Posted by jdemaris on September 27, 2008 at 11:09:10 from (67.142.130.23):
In Reply to: Re: High failure rate posted by JoeBob/IN on September 27, 2008 at 10:13:05:
Yes, they certainly were looking. I've got a stack of paperwork here about it. You don't discover something isn't cost effecitive, until you look into it. They decided that using an alternative engine would not be cost-effective. They also researched the possibily of getting a more reliable fuel injection system and that too, was not cost effective.
Cummins makes a repower kit to replace GM 6.2s and 6.5s. Comes with an adapter plate and a 3.9 liter turbo-diesel. Works fine and has been used in many trucks in the US. Not cost effective though for the mililary.
What was done instead of an engine replacement program, was to come up with a much heavier built 6.5 that is now used in Humvees. Also marine use. It's the 6500 Optimizer. Navistar has done some of the block castings and the engine is put together by General Engine Products. Block is heavier with added nickel content. Heads are much heavier. Some cranks can be custom-ordered in forged steel.
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