From: J (W7LS@BLARG.NET)
Date: Sun Jun 26 2005 - 22:47:02 PDT
Yes, I do remember that article and will look for it. According to the
wiring diagram in the TM9 2320-20 I downloaded from LOGSA, the battery
switch controls the fuel solenoid, but the wiring is impossible. Has to
be a mistake. There must be an updated, correct wiring diagram out
there, somewhere. The main control module (a can of simple relays) as
shown in the wiring diagram, wouldn't actually control the fuel shutoff
solenoid, but I bet it really does, anyway.
This is a fairly important problem, in that if you lose power to the
fuel shutoff solenoid valve, your engine dies in traffic. If that's not
bad enough, you now don't have any power steering pressure, because
there is no hydraulic accumulator in the system to maintain pressure in
the event of an engine failure. Don't disengage the clutch, if the
engine loses power. Keep it turning
Has anyone on the list installed an accumulator, or an auxillary
electric pump? Thanks. Jim
Wayne Harris wrote:
> I think a lot of those has been bypassed and now use the Emegerency
> shutoff (in the middle of the dash). There is also a box on your
> engine side firewall that could/will cause trouble, it's up high on
> the driver side and one big cable/plug going into it. When it goes bad
> the engine stops. It's repairable and there was a article about it in
> the MV magazine. Maybe someone will remember more. Wayne
>
>
>
>
>
>
>
>> From: J <W7LS@BLARG.NET>
>> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
>> Subject: [MV] Cummins engine problem. Help?
>> Date: Sun, 26 Jun 2005 21:21:40 -0700
>>
>> Our Cummins 250 small cam, 855 cubic inch powered M813A1 5 ton truck
>> suddenly lost power while driving. It came back to life after turning
>> on and off the switches that control the fuel shutoff solenoid,
>> amongst other things. I checked all the wiring and switches while
>> jiggling all connections. Everything is fine. I suspect the actual
>> solenoid. I removed it and tested it with an ohmmeter. I get 29
>> ohms. Is this resistance value proper? Once the truck restarted, it
>> ran fine, with full power. Is the solenoid something that goes bad
>> over time? Anyone else ever experience this? Thanks. Jim
>
>
>
>
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