From: Bobby Joe Pendleton (bjpendleton@charter.net)
Date: Tue Dec 07 2004 - 18:16:22 PST
I bought a fuel pump and hanger from them about a year ago. I also bought a
NOS pump through e bay.
The first thing will have to do get the pressure down to 3 lbs or it will
not run. This is from the manual.
You might try Winer Motors. info@samwinermotors.com
or Pop's GMC Parts, or AB Linn
BjP
"Maneo Qualis Manebam"
----- Original Message -----
From: "Santoken" <santoken@bright.net>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Tuesday, 07 December, 2004 21:09
Subject: Re: [MV] G749 GMC Carb rebuild questions
> Yeah, you called Memphis lately? They're getting rid of all their GMC
> stuff...they say it's a 'collector item' now. Anyway, all they had to
> help me was a rebuild kit. Yeah, I replaced the float with one I had
> already. They were all out of fuel pumps...I really need the entire
> fuel module assembly.
>
> Bobby Joe Pendleton wrote:
>
> > did you by chance check the float? They tend to crack and fill with gas
> > causing the engine to flood.. Also fuel pressure should be no more than
2
> > 1/2- 3 PSI, any more and the engine will flood. I got my rebuilt carb
and
> > fuel pump from Memphis Equipment.
> >
> > BjP
> > "Maneo Qualis Manebam"
> > ----- Original Message -----
> > From: "Santoken" <santoken@bright.net>
> > To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> > Sent: Tuesday, 07 December, 2004 20:33
> > Subject: Re: [MV] G749 GMC Carb rebuild questions
> >
> >
> >
> >>Well, after looking closely, and spending a few more hours with this
> >>carb, and looking into responses from the earlier post...I'm still
> >
> > stumped.
> >
> >>So, this leads deeper, does anyone know what the fuel pressure should be
> >>on a G749? You see, somehow or another I lost the original fuel pump so
> >>I obtained an aftermarket Carter 24v fuel pump. It seemed to run fine
> >>earlier, but I'm trying all options. The fuel pump that I installed is
> >>rated for 5.5-10 psi...which from past experience should be well within
> >>the required specs...but I'm not sure about this application and perhaps
> >>the fuel pump is malfunctioning.
> >>
> >>Or better yet, does anyone have the original fuel pump, and fuel pump
> >>module box they'd be willing to part with?
> >>
> >>Thanks!
> >>
> >>Santoken wrote:
> >>
> >>
> >>>List,
> >>>
> >>>AT the beginning of summer, I had my M215 running sweet. When you
tried
> >>>to start it, you didn't even hear the starter motor run because the
> >>>engine seems to start running first. It started and ran that nicely.
> >>>
> >>>After sitting all summer, I started it to move it and it barely started
> >>>and ran horribly. It was running entirely too rich. After I got it
> >>>moved, I tore into the carb. Yeah, it was running WAY too rich.
Seemed
> >>>that the bowl was leaking fuel down into the carb just sitting there,
> >>>not doing anything. I decide to do a rebuild.
> >>>
> >>>After paying the horrible money for a sub-standard kit, it still does
> >>>the same thing. I have had that carb on and off so many times I can't
> >>>count.
> >>>
> >>>Is there anyone out there familiar with that Holley that could give me
a
> >>>few pointers? This is the most bastard carb I've ever seen and since
> >>>the carb kit didn't come with any literature, I could really use some
> >>>outside knowledge on it.
> >>>
> >>>After running the idle mixture screws bottom, and dropping the float
all
> >>>the way down...it runs OK...just ok. When I back the screws out, it
> >>>starts faltering. Adjusting the float does the same. When the float
is
> >>>set to proper height, and the air-horn off, I can see fuel dribble into
> >>>the carb...I can't really see where it's coming from, tho.
> >>>
> >>>The idle circuit appears to be fine since the idle mixtures screws seem
> >>>to effect its idle quality. The bowl is not cracked and the power
valve
> >>>is functioning properly. The kit that I got came with new metering
> >>>orifice tubes but they look nothing like the old ones, have these been
> >>>redesigned to repair some known problem? The old tubes had the base
> >>>crushed shut, the new ones did not...and the orifice on the new ones is
> >>>MUCH smaller...surely effecting the air bleed.
> >>>
> >>>Has anyone else ran across this same problem?
> >>>
> >>>Thanks,
> >>>
> >>>Kent
> >>>
> >>>
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> >
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> >>>
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<mil-veh-digest@mil-veh.org>
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> >
> >
> >
> >
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<mil-veh-digest@mil-veh.org>
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> >
>
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