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Topic: Cummins 8.3, Won’t Start (Read 2678 times) previous topic - next topic

Re: Cummins 8.3, Won’t Start

Reply #25 –
Quote from: Vossx2 –
Can you point us towards the constant duty solenoid? Shut off solenoid seems to be functioning... pulls up when we crank.


Cole Hersee 24213 12V 200A Continuous duty solonoid is one choice.  To find yours  you have to follow the power wire from the shut off solenoid to see where Foretravel mounted it (if there is indeed one there at all).

My previous coach (a 1994 Bluebird BMC 37) had a 3 pole solenoid, but others had 4 pole.  A 4 pole can work to replace a 3 pole.

Amazon.com : Cole Hersee 24213 12V 200A Continuous duty solonoid 
Dan - Full timing since 2009
2003 U320 40' Tag 2 slide

Re: Cummins 8.3, Won’t Start

Reply #26 –
Quote from: AC7880 –

Cole Hersee 24213 12V 200A Continuous duty solonoid is one choice.  To find yours  you have to follow the power wire from the shut off solenoid to see where Foretravel mounted it (if there is indeed one there at all).

My previous coach (a 1994 Bluebird BMC 37) had a 3 pole solenoid, but others had 4 pole.  A 4 pole can work to replace a 3 pole.


Correct.  With the three pole (two large lugs, one signal terminal) the small terminal is for 12 VDC positive (to close it so both lugs are connected) and the ground/negative is the body of the solenoid.  So it needs to be screwed to good clean, grounded metal OR you need to run a wire from it to a good ground.

The 4 pole, one small terminal is ground, one 12 VDC positive.

"Twins by different mothers".
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Cummins 8.3, Won’t Start

Reply #27 –
Ok. I think we have this figured out.

The fuel shut off solenoid is working, but the valve(?) or metal piece that the solenoid pulls up was not moving freely. So we believe (with lots of videos) that it wasn't pulling up quite far enough. A little oil and it starts every time we try it.

Have ordered a new solenoid!

Note: We will keep trying it over the next few days to be sure that was really the issue.
Christine & Jimmy
Nomadic, Full-time Life in Progress...
1997 U295/36/C8.3
600 AH BB-LiFePo/1080 Watts Solar
2020 Jeep Cherokee Trailhawk
** Social media: curiosity-in-motion

The cure for boredom is curiosity. There is no cure for curiosity. ~Dorothy Parker~

Re: Cummins 8.3, Won’t Start

Reply #28 –
Maybe I was not very clear on my post Wolf10.
I have a 1996 8.3 that I installed a fass fuel system 6 years ago. First photo.
I now also have a 1999 M11 which I also just installed a fass fuel system. Photo 2

Hope this helps.

Now 1999 U320 36' with ISM/M11
600 amps hours of lithium ion batteries.
Jeep gladiator tow vehicle for exploring.

Re: Cummins 8.3, Won’t Start

Reply #29 –
Quote from: Ahb867 –
Maybe I was not very clear on my post Wolfe10.
I have a 1996 8.3 that I installed a fass fuel system 6 years ago. First photo.
I now also have a 1999 M11 which I also just installed a fass fuel system. Photo 2
Hope this helps.

Agree, your system is different than the OP's and his is what most of the posts are about.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Cummins 8.3, Won’t Start

Reply #30 –
New fuel shut-off solenoid is installed and the engine is starting normally! Shut off solenoid
Christine & Jimmy
Nomadic, Full-time Life in Progress...
1997 U295/36/C8.3
600 AH BB-LiFePo/1080 Watts Solar
2020 Jeep Cherokee Trailhawk
** Social media: curiosity-in-motion

The cure for boredom is curiosity. There is no cure for curiosity. ~Dorothy Parker~

Re: Cummins 8.3, Won’t Start

Reply #31 –
Is that the correct solenoid for the 8.3? I see it listed as the dodge shutoff. I htought that was the smaller 5.9 cummins? I will have to look at mine. I want to order a spare to throw in the parts bin. I feel like that is a good one to have.

I thought it would be this one...

Re: Cummins 8.3, Won’t Start

Reply #32 –
You need to know if your bolt spacing is 2-1/2" or 3"center to center.  I've seen some info online that shows both used in the 8.3 Cummins.
Justin & Cathy Byrd
1995 U280 "Old Faithful"
36' Build #4673
C8.3 Cummins
Allison MD3060R 6 speed - retarder
Powertech 10KW  4cyl Kubota

Re: Cummins 8.3, Won’t Start

Reply #33 –
Quote from: nbluesky –
Is that the correct solenoid for the 8.3? I see it listed as the dodge shutoff. I want to order a spare to throw in the parts bin. I feel like that is a good one to have.

I thought it would be this one...

Always convenient to have spare parts on hand when they go south but this is not a show stopper and has an easy work around.  Zip tie up and start, cut off to shut down. Order part at your convenience have it in hand in a day or so.
Doug W.
96 36' U270 CSGI #4946
04 Toyota Tacoma 4x4
PNW

Re: Cummins 8.3, Won’t Start

Reply #34 –
In response to the correct part number from LarryB's: Part #FS20-RP-12(Volt) was an exact match. The solenoid comes with the correct connection bolt and the wiring connection – plug and play. It also came with new brackets and shut off linkage. Even better, clear instructions for installation that explains how to set the bolt length! It arrived two days after ordering online by Priority Mail, well packaged. Total cost: $140.00 with shipping. The owner even answered my text about shipping and confirmed this was the correct part. Larry Buck Inc. PO Box 865, Vaughn, WA 98394. 253-2256-9962 is his cell number.

FS20 has the correct eye bolt connection, most others you find do not. RP stands for round plug, the plug is not round but Cummins used both a flat copper conductor pins in the plug or a round one, my 1998 Foretravel with a 6CTA 8.3 had the round pins. It's available for 12 or 24 volt systems. The electrical connection has three conductors, red, white and black. Black is the ground. There are two coils within the solenoid, one for pull up while starter is running and one that holds in (ignition switch in run position.) As always, look carefully at your solenoid - eye bolt, mounting spacing, and pin style before ordering. The ones advertised for cheap on Amazon have the wrong eye bolt end, it will not fit over your shut off valve. If you carry one of them for spares you will need to move your eye bolt over to the new solenoid. I've been through this twice in the last two years.

1998 36 foot U270 Build No. 5328 WTFE, 900 watts solar, Victron controller, B2B, bat monitor, 600 AMPH lithium with 2018 Chevy Colorado toad, SKP #110239, Motorcade #17781, 2021 Escape 17B for when Coach is broken down and campsites are too small, retired and full-timer since Dec. 2020. Part of RV family since 1963.
 

Re: Cummins 8.3, Won’t Start

Reply #35 –
Quote from: nbluesky –
Is that the correct solenoid for the 8.3? I see it listed as the dodge shutoff. I htought that was the smaller 5.9 cummins? I will have to look at mine. I want to order a spare to throw in the parts bin. I feel like that is a good one to have.

I thought it would be this one...
The rod end of that one did not match ours.
Christine & Jimmy
Nomadic, Full-time Life in Progress...
1997 U295/36/C8.3
600 AH BB-LiFePo/1080 Watts Solar
2020 Jeep Cherokee Trailhawk
** Social media: curiosity-in-motion

The cure for boredom is curiosity. There is no cure for curiosity. ~Dorothy Parker~