From: Chance Wolf (bigbadwolf@telus.net)
Date: Sun Feb 19 2006 - 20:03:37 PST
----- Original Message -----
From: "Jim Zehr" <jimm1009@yahoo.com>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Saturday, February 18, 2006 2:17 PM
Subject: [MV] 6.2 swap question
> I know that this is not correct for a restored
> military configured M1009 but I'm starting to think
> that 6.2 engines are a mistake.
My own M1009 has some incredible amount of mileage on it now and the only
thing I've had to change out was the injector pump because one of the
components inside was dissolving thanks to additives in modern-day diesel
fuel and was clogging up the works with black particulate matter (Cold
Advance Valve would get clogged right up.) At work here we have a bunch of
CUCVs and HMMWVs and the odd 6.2 diesel civvy pickup as well, and the only
problems with the 6.2 we've had have been glow plug (and associated
electronics) and fuel pump/ fuel pressure switch/ drainback stuff in
addition to the odd starter and flexplate trouble. However, that said, the
one or two we've sent in to the rebuilders proved kind of..educational...as
once we had a pile of heads we sent in along with the two that came off the
engine itself, hoping to find two usable ones out of the pile that weren't
cracked. The rebuilder laughed and said:
"Oh, they're *always* cracked. The trick is to find some that aren't
cracked too badly."
Another engine we'd had rebuilt by one fellow detonated as soon as it was
installed, and we sent it out to a second guy to get a post-mortem done.
Fellow calls us on the phone a few days later and asks us to come down and
have a look at it. He showed us serious web-cracks on the main journals
and told us that block should never have been rebuilt to begin with, and
since it happens often enough on the 6.2s, the previous rebuilder should've
known to check for that.
Anyhow, I wouldn't hesitate to put another 6.2 in anything here that needed
it. I've put beaucoup miles on them and think they're amazing. Just make
sure the cooling system's up to par and that you're doing regular oil
changes and all should be good. (And check your starter bolts/nuts every
time you do an oil change if not even more frequently - especially the
front-bumper-end one which likes to walk out and off if it's getting a daily
oil bath like a lot of them.)
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