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Re: 6.5 pics
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Posted by jdemaris on June 04, 2007 at 05:36:42 from (69.67.230.249):
In Reply to: Re: 6.5 pics posted by Mike M on June 04, 2007 at 04:57:15:
Blanket statements e.g. "they are all junk" are a little silly. The Detroit 6.2/6.5 series is the lighest V-8 diesel (weight per cubic inch) ever made in the U.S. up to now. Subsequently, it certainly has shortcomings when used for HD use. When GM hired Detroit Diesel to design it - the idea at the time - was a compact light-duty engine - and it worked fine for that much of the time. All the later add-ons - e.g. larger precombustion chambers, turbo, etc. were a sort of catch-up game to compete with the competition. Many 6.2s and 6.5s have lasted well over 500,000 miles. And, some have blown to pieces before 100,000. That is verified fact - and indicates they are not ALL junk, as you say. The 6.5 in the photos seems to have suffered some sort of failure not associated with any flaw in the block, crank, or rod design. Timing chain fell off or broke maybe?
If so, that is extremely rare with the 6.2/6.5. I will say this though, to the credit of the Ford IH engines - there are NO timing chains to worry about. The 6.9s and 7.3s also have forged-steel cranks instead of cast-iron like GM uses.
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