From: Brian Redick (B-Man@wesnet.com)
Date: Wed May 05 2004 - 17:26:06 PDT
I have a 1976 M882 that gets 6 mpg around town and 8 mpg highway. Still has
original un-rebuilt 318 V8 in it. I did replace the carb about 4 years ago,
but fuel pump is original piece still. It leaks down after a few weeks as
well. Probably ought to think about replacing it!!
Brian
-----Original Message-----
From: Military Vehicles Mailing List [mailto:mil-veh@mil-veh.org] On Behalf
Of Mel Miller
Sent: Sunday, May 02, 2004 12:15 AM
To: Military Vehicles Mailing List
Subject: Re: [MV] (MV) M880 gas mileage
Howdy List,
This mileage thread gives me a good excuse to share the results of my
problem resolution process with my 1977 M884.
Some may remember a while back that I was having problems with fuel not
staying in the float chamber if the truck sat a few days without use.
The fuel pump, although appearing to be relatively new and putting out
decent volume when diverted to a catch can, was unable to push fuel past
the filter into the carb. Many people sent in suggestions centered on
stopped up fuel lines/ fuel tank unvented, etc. I replaced the Carter
Carb with a NOS late style Holly. That did not help. Finally I turned
the problem over to my NAPA store mechanics. It turned out that the fuel
pump was bad - it would pump when disconnected from the filter but would
not develop pressure. Secondly, the NOS Holley seals were so dried out
that fuel was draining out of the float chamber. I told them to rebuild
the carb with new gaskets and replace the fuel pump. Now I am back to
13 - 15mpg on the highway not towing anything but with a good tune up
and fresh Champion Plugs and HD plug wires.
YMMV,
Mel Miller
Corpus Christi, TX
361-937-3317
M725
M884
86 VW Doppelkabin Drop Side Diesel PU (OD)
On Saturday, May 1, 2004, at 10:42 PM, Movnmanj1@aol.com wrote:
> I am getting about 7-8 mpg pulling 6000#'s. Have you changed the
> carb, tuneup, etc.? Perhaps a brake dragging? Something is terribly
> wrong, I should think. Are there any other M880 users that can
> contribute? We got to get this fixed!!
>
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