Re: Cummins NHC 250 / 855 CI diesel as in the M800 series of 5 tons

From: MV (MV@dc9.tzo.com)
Date: Mon Apr 24 2006 - 12:21:56 PDT


Good idea, I'll take a look at that.

Thanks,

Dave

Hutterer, John (MPAU) wrote:
>
> Dave,
>
> I have an NHC 250 in my M816 wrecker. It has the glow plug and spray
> nozzle arrangement. I was having trouble getting it to start. I figured
> that it was because I didn't use it all that often. Had to use ether to
> start it every time. One day, it wouldn't start at all. No way, no how.
> It turned out that the fuel shut-off solenoid actuated valve had finally
> quit on me. It could be by-passed by turning the little knurled knob on
> it, but that was also how you had to shut the engine off, afterward. You
> could look and see if your engine has this knob on the shut off
> solenoid. If it does, try using it to bypass the solenoid first thing in
> the morning. If the engine fires right up, your shut-off solenoid is
> probably going bad. Worth a try, and easy too.
>
> John
>
>
> -----Original Message-----
> From: Military Vehicles Mailing List [mailto:mil-veh@mil-veh.org] On
> Behalf Of MV
> Sent: Monday, April 24, 2006 1:11 PM
> To: Military Vehicles Mailing List
> Subject: [MV] Cummins NHC 250 / 855 CI diesel as in the M800 series of 5
> tons
>
>
> Guys,
>
> I have an NHC 250 engine in a civilian truck - it requires either to get
> it started even when it is warm outside. It does not have glow plugs.
>
> It had an ether quick start kit installed on it when I got it. The
> military NHC 250s seem to have a preheater installed on them with a glow
> plug and a spray nozzle of some sort in the intake manifold.
>
> Is it normal to have to ether these engines even when it is warm outside
> - like 70 degrees? Once I get the engine running - even if I shut it
> off for a couple of hours - it will easily restart. But ether is
> required the first time each day. Not a lot, just a one second spray in
> the top of the stack.
>
> The engine runs well - no smoking at all. And that is without a turbo.
>
> Dave
>
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