From: International Movie Services (ims@telus.net)
Date: Sun May 02 2004 - 09:58:27 PDT
The poor running when cold is usually caused by the internal passages in the
intake manifold becoming completely carboned up and plugged. Either you will
have to remove the manifold to "hog out" the carbon, or simply replace the
manifold. The US Forest Service must have experienced this problem with the
fleet of M880's they were operating out of Missoula, Montana until recently
(there's one of the last ones coming up at public auction on May 5th).
Last year when we bought several M1008's and 1009's/M715 from Missoula we
were surprised to find boxes of new Chrysler 318 intake manifolds as well
as used totally clogged ones included in the contract. We had been
experiencing the poor cold starting/idle/running problem with an M886, as
well as the lousy gas mileage. Changed the manifold and you'd think it was a
different truck! If anyone wants a new intake manifold I think we have some
left in our parts building.
Cheers!
Ian
----- Original Message -----
From: <mkmvpa@juno.com>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Sunday, May 02, 2004 6:06 AM
Subject: Re: [MV] (MV) M880 gas mileage
>
> I am currently getting around 7.73 MPG on a recent 950 mile trip I used
around 120 gallons of high test (93 octane) and that is averaging 65 to 70
MPH. The carburetor in the truck is fairly new(not sure if it was a rebuild)
Carter and was installed in december. The truck is also really cold blooded
even on warm days if it has been setting for a while (not so much if it has
run that day, but always in the mornings), takes a few minutes to warm up or
it chokes and back fires if I start from a stop until it has run down the
road a couple hundred yards(the choke is usually open as the average morning
is 70 degrees down here. Mind you before I got this truck it hadn't run more
than 50 or so miles in the previous 2 years so could I have a bad fuel pump
also? Once the truck warms up it runs like a chemp and smooth as silk, just
takes a little bit for it to get there.
>
> Robert
> 1977 Dodge M880
> 1964 American General M35A2C
> MVPA# 23437
>
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