Boy I hate to say it but it sounds like BS to me. If you want to get an
engine "good and hot" run it around in the woods for a few hours with mud
and god knows what crammed in the radiaitor. Not to mention I do not think
that GM or the military includes retorquing the head bolts ( I may be
wrong ) in any PM schedule.I own a CUCV with the 6.2 and alot of other
diesel military vehicles and have had them on the freeway with quite a few
years of good service. This is not a flame rather than an opinion just like
the shop manager whom I'm sure does not have a mechanical engineering degree
any more than I have.
I would hate to go out , pull the valve covers off, and find that the heads
did require retorquing. I wouls probably go nuts and broke buying new
gaskets to retorque all the bolts on my "never was on the freeway" MV.
Once again, not intended to be a flame.
Regards
Emmett
----- Original Message -----
From: <mblair1@home.net>
To: Military Vehicles Mailing List <mil-veh@mil-veh.org>
Sent: Wednesday, October 04, 2000 3:47 PM
Subject: [MV] HMMWV 6.2l head gaskets
>
> I brought my HMMWV's rear diff in to the local Hummer dealer today to
> have it repaired. While I was there, I talked to the service manager.
> He told me that in the service, the HMMWVs were seldom driven on the
> freeway, and were usually moved around by flatbed. After a decade of
> that, plus lack of service, the head bolts would stretch, and once us
> civilians get our hands on them and start driving them on the freeway
> (and thus getting the engine good and hot) the head would start to
> warp, causing cracks and/or blown head gaskets. His advice was to
> re-torque the head bolts before driving surplus HMMWVs. That advice
> came too late to help me, but maybe some of y'all can avoid an
> expensive repair with a little bit of effort up front!
>
> The local Hummer dealer, Huntington Beach Hummer, is the nearest
> Hummer shop to the Riverside Auto Auction, so they've seen quite a few
> of the HMMWVs which were auctioned off last year. I saw a couple in
> their shop today.
>
> I wonder if that would also be good advice for CUCV owners?
>
> --
> Mark J. Blair, KE6MYK <mblair1@home.net>
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This archive was generated by hypermail 2b29 : Wed Nov 01 2000 - 21:37:37 PST