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Topic: Fuel Solenoid (Read 698 times) previous topic - next topic

Fuel Solenoid

There are a number of threads discussing the fuel shut off solenoid on the 8.3. I see that solenoid on mine but what is the purpose of this other one that Cummins refers to as the fuel solenoid? It's a small can aft of the rear glow plug. Thanks.
jor

93 225
95 300
97 270
99 320

Re: Fuel Solenoid

Reply #1 –
John, the c.83 preheat option includes fuel injected into intake manifold during warmup only. That solenoid you point to is controlled by the preheat system and opens to inject diesel fuel directly into intake manifold during preheat and postheat.

Re: Fuel Solenoid

Reply #2 –
Ahhhh.... thanks, Barry. Interesting that if one did away with the pre-post heat system, there would be no electrical activity on the 8.3 but the fuel cutoff!
jor
93 225
95 300
97 270
99 320

Re: Fuel Solenoid

Reply #3 –
My DT466 is 100% mechanical, T-handle pull cable, no other devices. Push it in start it, and go. No electrical issues will keep it from running.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Fuel Solenoid

Reply #4 –
Quote from: craneman –
No electrical issues will keep it from running.
Of course, you do need a little electricity to get it running...

Too bad you can't roll it down a hill and pop the clutch in 1st gear to get it started.

Or rig up a cartridge starter like we used on the B-52.

https://www.youtube.com/watch?v=anFdf5aYtIA

Once running your coach would be the perfect "Bug Out" vehicle for when the bad guys start setting off EMP bombs in your neighborhood.
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Fuel Solenoid

Reply #5 –
Quote from: Chuck & Jeannie –
Of course, you do need a little electricity to get it running...

Too bad you can't roll it down a hill and pop the clutch in 1st gear to get it started.

Or rig up a cartridge starter like we used on the B-52.

https://www.youtube.com/watch?v=anFdf5aYtIA

Once running your coach would be the perfect "Bug Out" vehicle for when the bad guys start setting off EMP bombs in your neighborhood.
There were times I had to park it in the driveway at night, with the front tires on the apron while I had the starter rebuilt. Just kept it running on the jobs.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Fuel Solenoid

Reply #6 –
I had the fuel shut off solenoid go and I used a spring to keep it fuel on and put in a pull string to shut it down and it worked
great till I could get a new solenoid.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport
 

Re: Fuel Solenoid

Reply #7 –
Quote from: Chuck & Jeannie –
Of course, you do need a little electricity to get it running...
Too bad you can't roll it down a hill and pop the clutch in 1st gear to get it started.
Our Foretravel is the only diesel I've owned that I could not bump start. Our bus and all the firetrucks were manual so we could do second or third gear bump starts. All the Mercedes automatic diesels (and most gas) I have owned have the extra pump so you can pull or coast downhill and start in first. So, if you have a cast iron head MBZ diesel with auto, you can bump start and some of the later aluminum heads too. Coast to 30 mph in neutral and then pull the selector to L.

Only bad thing about the Detroits was that if you let them roll back and stall at a stop sign and they rolled backwards, the engine would run backwards. Not good to use the air cleaner for  a muffler.

I bought a MBZ diesel at the Neckermann auto swap meet in Frankfurt and then took a couple of weeks off to vacation in the mountains outside of München. It had almost zero compression but once started, it ran well. It was in the dead of winter and we stayed at a hotel way above the main road. I would scrape the ice off and then put it in second gear and after a minute or so of driving down the hill, it would spring to life. Could not park it downtown for more than a couple of hours or it would not start.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)