rjnontheroad

jacwjames Thanks for your input. I checked out the governor on your pdf but still can't determine if it is the right size for my ISC 8.3 cummins. Guess my next step is to contact a Cummins repair shop.

2004 Monaco Diploma My 2004 Diplomat with a Cummins ISC 8.3 engine became very difficult to air up. At 750 rpm idle it would stop airing at around 60 psi. In order to finish airing it was necessary to increase rpms to 1600. It would finally reach 130 psi, dump air and drop to 120rpm. While driving it would maintain proper air. I found an air leak in the air line from the compressor to the air dryer and also found the air governor on the passenger side of the engine. Brought my rig into a local semi/diesel repair shop and told them to replace the air line and the governor. The air line was replaced but the mechanic didn't replace my 20 year old governor. He said my governor is about 1 1/2" shorter than the normal governors he always uses. Roughly 3 1/2" compared to his 5" ones. Therefore he is reluctant to replace mine. So I am trying to see if anyone on this forum can help me figure out if the normal governors will be okay to use. My air dryer is a WABCO 1203 Model with a part number 4324130010 on it. I'm not sure if this will help. Also if anyone has a part number for my type of governor or can direct me to where I can find one I would really appreciate it. As a note, when I was under rig and found the governor I could not see any info on it and was physically unable to crawl up closer to the thing. I'm just a bit too old and big to do these repairs now. One other thing. The rig does air up at idle now that there's a new air line. The problem is the it cycles too much while driving down the road. The mechanic also mentioned this. He also mentioned that my existing governor has what he called a weep port that allowed a small air leak. He said it was a manufactured port but he had never seen this in a governor. Hope this makes sense and thank you for any help. Ricardo - 2004 Monaco Diplomat

Ricardo In 1997 my wife and I decided to sell our house of 24 years, quit our jobs, and head west in a 1984 Coachman 5th wheel. Our kids were grown and on their own, house was paid for, and our long time jobs were stale and boring. We got summer jobs in Yellowstone NP working at the Madison campground. The plan was to work and travel for 3 years and find a new place out west to settle and start a new life. Well, as many of you know, being full time RVing is very addictive and 3 years later we found ourselves working at Disney World during their 1999 - 2000 Millenium Celebration. We decided we loved this lifestyle and bought a 1998 Carraige 5th wheel and a new 2000 Ford diesel truck to pull it. In 2008 we sold the Ford and 5th wheel and bought a 2004 Monaco Diplomat which we still have. In December of 2019, after 22 plus years on the road we bought 5 acres of land SW of Deming, NM. It had a well, septic, electric, and hook-ups for our Dip. Figured we would use it as a home port for the winter and travel during the summer. Then Covid hit. We have spent the last 2 plus years fixing up a shipping container cabin that was on the land and have only had our motor home on one trip a year ago. We are just getting too old to do much traveling and the rig isn't getting the use it needs. Seriously thinking of selling it. We figure $30,000 is a good price for 2004 Quad slide Diplomat. It has been a good rig but needs some TLC that we just aren't able to give it. May just down sizes to a small pull behind.

Dahn I have repaired my Scissor stop on my 2004 Dip several times. In my case it has always been the rivet that has worn and loosened to the extent that the 2 halves of the unit are very loose and catch the door when closing it. I take the unit off by removing the 4 screws on the door frame and drilling out the rivets on the door. Once off it is very easy to knock the loose river out. Then I take the half with the tapered hole to a hardware store and find a flat head, tapered bolt that fits the hole. I use this to make a new rivet by assembling the two sections together then cutting the bolt end to approximately 1/8" - 1/4" beyond the assembled pieces. I hammer that end as flat as possible then grind off the the other tapered side so it is flat with the surface. This method lasts several years and works well for me. Of course you can just buy a new unit for $100+. Just Gopgle it. You might try Veruinks (not sure correct spelling). Ricardo - 2004 Diplomat - On the road since 1997 2004 Diplomat

Dennis, you might be right, maybe they are machined screws that I have been using. Anyway, it has been very easy to find one that will fit. One time I think I bought a hardened tapered bolt (screw) and had to pound the devil on the cut end to flatten it. Grinding down the tapered end has always worked smoothly using my 4 1/2" hand grinder. Hope someone finds a source for the original rivet. It will be interesting to compare costs. Richard

Joel, mine does the same thing when the rivet that holds the two pieces together begins to wear out and loosen. Eventually my wife and or I get so annoyed by this that I take the unit down and build a new rivet. Here is how I do this. First unscrew the bracket attached to the door frame. Then drill out the rivets on bracket attached to the door. Then knock out the large, loose, rivet holding the two pieces together. I may have to do a little bit of grinding on it to do this. Take the half of the arm with the beveled hole to the hardware store and find a bolt with a tapered head that just fits the hole diameter. Cut this bolt so about 1/4" sticks out from the assembled pieces. Beat this with a hammer until it is pretty flat. Grind off the other, tapered side, of the bolt until it is smooth with the surface of the scissor arm. Screw the bracket side to the door frame and pop rivet the other side to the door. It will be quite stiff to use for a little while but becomes easier fairly quickly. Pretty primitive operation but it saves about $100 from buying a new unit. Hope this helps. Richard Nordlund 2004 Diplomat

This isn't quite what was asked for but I still have the original scissor door opener on my 2004 Diplomat. I have repaired it a couple of times since 2008 when we moved into it. It cost a couple of bucks for materials and takes an hour or two to fix. I'm probably not telling most of you anything new and the hydraulic piston replacement looks like an elegant solution, but if anyone is interested on how I do the repair, give me a shout out on this topic. Richard Nordlund 2004 Diplomat