Just a quick guess.
Vapour lock ?
Check your fuel pump.
Jim Wiehe , VA3JHW
mail to : j.wiehe@sympatico.ca
----- Original Message -----
From: "Mike Pilcher" <candlewickjeep2@webtv.net>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Sunday, November 11, 2001 23:27
Subject: [MV] M37 idle & road speed problem
> Esteemed list, please advise!
>
> I had a carburetor kit put in my M37s carb when I first restored the
> truck. I have lived with an ongoing problem due to a variety of reasons
> that I won't go into here.
>
> At idle the truck will run for about 2 minutes and then go dead.
> Usually it re-starts when I pull the choke out and give it gas.
>
> At other times it would act flooded. This usually happens when it has
> been at normal operating temperature for a while. It doesn't want to
> idle at all when it's warm. When this happens I leave the choke in
> and mash the accelerator to the floor.
>
> These sound like 2 different problems to me.
>
> Finally, when I am traveling at road speed it will start to spit and
> sputter and act like it wants to go dead. This usually happens about
> every 15 minutes of travel time. I can usually help it recover by
> pulling out the choke, let it smooth out, and push the choke back in.
>
> I might add that the truck runs best when the choke is pulled out abut
> 1/4 inch.
>
> I've been advised:
>
> 1.It's running too lean.
> 2.It's running too rich.
> 3.A pulled out choke required for optimum performance implies something
> clogged up in carburetor.
> 4.Fuel filter clogged.
> 5.Float is too high in bowl.
>
> Any of these sound reasoable?
> Please send a little knowledge my way. I'm ready to get this ongoing
> problem straightened out.
>
> Thanks in advance
> Mike Pilcher
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This archive was generated by hypermail 2b29 : Fri Dec 07 2001 - 00:36:59 PST