RV.Net Open Roads Forum: Search

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Help and Support  |  Contact  



Open Roads Forum  >  Search the Forums

 > Your search for 'cummins isb' found 17 matches.

Sort by:    Search within results:
  Subject Author Date Posted Forum
RE: towing a full size car

I just pulled my CCSB 2007 duramax pickup from phoenix to dallas, with 2200# in the bed. Total weight of truck is 9800#. My coach has a 275 cummins ISB. Pulls like a dream. You were only 4,800 lb over your pull rating. The weight police will be showing up to your house soon. :) Did it stop like a Dream? Didn't you Dream about better MPG?
Triker33 07/30/16 10:54am Class A Motorhomes
RE: towing a full size car

I just pulled my CCSB 2007 duramax pickup from phoenix to dallas, with 2200# in the bed. Total weight of truck is 9800#. My coach has a 275 cummins ISB. Pulls like a dream.
glamisorbust 07/30/16 09:21am Class A Motorhomes
Anyone chip a Cummins ISB 6.7 XT?

Lately we've done a few trips pulling our enclosed trailer with our VW Golf R in it. That adds up to a tow weight of 6900 lbs. so we are lacking power big time. Has anyone installed an aftermarket power chip or tune to their 6.7L Cummins? Curious to know if it would make a difference. Cheaper than a different coach and we love our Newmar.
katoomer 07/27/16 07:04pm Class A Motorhomes
RE: 1999 Fleetwood Discovery Class A Overheated

Please tell us what engine you have. That will make suggestions a lot more relevant. But, as already posted, anytime you have a performance issue with a diesel, new fuel filters is the inexpensive, easy first step. A 1999 Discovery has the Cummins ISB 275 HP engine in it with the Allison 3000MH transmission. Getting a manifold crack is common. I never have had mine bounce up and down at idle. So at a loss with that.
Triker33 07/25/16 11:45am Class A Motorhomes
RE: Opinions please

Jim, you can't go wrong with the Monaco line, except when it comes to the Caymans. The Knight on up all use the 8 air bag system. Monaco tried a 4 air bag system on the Cayman and it's a ROUGH riding coach. Our friends have a 37' that I tried everything (within reason) to try and soften the ride. I made sure the ride height was correct, added Koni shocks and lowered the air in the tires to the minimum. It still knocks their clothes off the hook in the closets. The Cayman also comes with the Cummins ISB 5.9 and smaller Allison trans. On almost every Cummins engine you can add some additional horsepower, except in the Cayman configuration. Since it has the smaller trans you can't increase the HP. Lastly, the Caymans had a trailering arm issue (the two large arms that run from the frame to the rear end). They all eventually fail and are about a $3000.00 repair. They were a recall item, but Monaco went out of business before doing the recall.
DSDP Don 07/23/16 08:35pm Class A Motorhomes
RE: 2005 Newmar Dutch Star 4010- Update

I agree our Cat was faster off the line, but after a few hundred feet (if that) our Cummins is in another league. And I drive a lot more road miles than I do stop light to stop light. The Cat certainly did everything well, the Cummins just seems to do it easier - and it should. More cubes, more HP and more torque should = more performance. When we ordered our '03 the Cummins ISB (300/660) was the standard engine, we opted for the bigger Cat - same reason, more is better when it comes to MH HP. The brand isn't the difference IMO as they're both top notch units, the HP and torque are.
Bruce Brown 06/10/16 10:06am Class A Motorhomes
RE: trying to decide Class A or Class C (super?)

The tow ratings of DP motorhomes rival that of most Super C motorhomes. For example a Thor Palazzo 33.x motorhome has a GVWR of 26,000# and a GCWR of 30,000# with a tow rating of 10,000# the 35.x / 36.x versions have 28,000# GVWR 33,000# GCWR. Interestingly enough that is identical to the Seneca which is 28,000# GVWR 33,000# GCWR. However, with the Palazzo the base unloaded weight is around 21,000# or in some cases less. This means you have much more actual payload and tow capacity left over. The Seneca is much heaver due to it being a truck front. The other consideration is you get about as much actual living space in a 33.x (actual length 34.5') than a Seneca with an actual length of about 40'. The Seneca is based on the Freightliner M2 106 truck chassis. The reason for this is the entire front portion is not usable space. Now like all things there are exceptions in this. On the commercial Super C motorhomes they build their rigs on a Class 8 Volvo or Freightliner. They have 15L ISX engines, 18 speed Eaton manual or true truck automated manual transmissions some have the Allison 4,000 series truck transmission. They have live (powered) dual rear axles each rated at 20,000# with a split rear end (dual gear ratios). They have air brakes for the coach portion and air brakes for any trailer. The GCWR on these rigs is 80,000# just like an OTR truck. Typically, you can run 55,000# in the truck and 25,000# for the trailer. Those are "true" Super C motorhomes. They are designed for the racing circuit and shows etc. A factory built normal Class A or Super C with an Allison MH2500 and an Cummins ISB cannot ever match the power of a real Super C built on a Class 8 chassis.
msturtz 05/05/16 01:41pm Class A Motorhomes
Labor time guide for rv repairs??

I have an extended warranty that is arguing with the repair shop on hours to replace an alternator on a 2006 coachman cross country. It's a Cummins isb motor. They are only willing to pay 1.4 hrs vs the real time which is about 4 times that to do the replacement. I called freightliner and even the girl in the rv section said no way would that time be right unless the body was off the chassis. Anyone else go through this and get the company to get their head out of their buts on times to do repairs. Anyone work at a rv dealer? Is there a time guide like Mitchell's or all data for cars for rv's?? Thoughts I need to call warranty and selling dealer in morning to get this repair finished. Thanks
GTMADNS 04/07/16 07:20pm Class A Motorhomes
RE: class A devaluation

I can give you some actual numbers and the original purchase price was the primary driver of the purchase of this particular RV. We purchased a 2008 HR Vacationer XL with a 360hp/660ft.lb. Cummins ISB and Allison 2500 trans. This was not a real popular diesel pusher because it was on a leaf spring chassis. The MSRP was $158,000 and we purchased it for $103,000 out the door (NEW). The reason we bought an RV was for an extended search for our final retirement destination. We spent 9 months looking and another 3 months of shuttling back and forth from the original S&B to the new S&B for a total of 36,000 miles. I crunched the numbers and to stay in hotels and feed our selves for this same extended period of time would have run some where in the $35,000 to $40,000 range. When we decided we were not using the RV enough and it was time for it to go I contacted LD in Seffner and arrange the sale over the phone. We sold the RV for $67,000 give or take. The actual sales loss for owning the RV approximately four years was $36,000. I am not including maintenance or fuel costs because we would have had about an equal amount on the car we would have driven around the country. The RV allowed us to spend time in areas we were interested in retiring to and allowed us to "get the hell out of Dodge" if an area did not appeal to us. For our use it was well worth the cost. You have to decide if weekends at the lake, in another state, or any other place you want to visit is worth the expense involved in owning one of these depreciating assists/liabilities. The other thing a potential buyer needs to know is these figures are based on a cash purchase. If you have a loan against your self destructing hotel room on wheels the non returnable costs (interest, etc.) plus depreciation increase your actual costs exponentially. Randy
randallb 03/16/16 04:05pm Class A Motorhomes
RE: Class A Gas or Diesel

So I saw a mention of it earlier, but if one had to choose between a low end DP like a Winnebago Forza vs a gas unit, would that be worth the extra bucks? Or would you have to go to a higher level DP to make a significant difference. In other words, how would a entry level DP stack up against a mid level gasser? For us we started with a higher end gas and ended up with an entry level DP. It still has Corian counter tops but vinyl flooring and low end wood finishes i.e. photo finish. The OEM chose an Allison MH2100 transmission and Cummins ISB 300 rather than the more common MH2500 and Cummins ISB 340. This limits the maximum GVWR to 26,000# and GCWR to 30,000#. These types of compromises are common in this price range. Funny thing is the Freightliner Custom Chassis my OEM chose was actually a 28,000# GVWR 33,000# chassis but was "de-rated" because of the transmission. These sorts of compromises were ok with us because all gas units max out at 26,000# and GCWR of 30,000# but you are limited to a maximum toad weight of 4,000# for some and 5,000# for the rest. This would prevent us from towing our Suburban and possibly even our Acadia. This is where the compromises come into play. We chose to limit our options to units that have a 6,000# minimum tow rating. As it is our entry level DP has a maximum tow rating of 10,000# provided that GCWR and GVWR ratings are observed. We also don't like the long rear overhang and long turning radius of a gas unit. Now that we have our DP the ride is very nice compared to our former GAS MH. The long overhang of a gas coach is something people overlook. I guess it's because of the drive shaft, but it does add some complications.
barmcd 02/02/16 06:50am Class A Motorhomes
RE: Class A Gas or Diesel

So I saw a mention of it earlier, but if one had to choose between a low end DP like a Winnebago Forza vs a gas unit, would that be worth the extra bucks? Or would you have to go to a higher level DP to make a significant difference. In other words, how would a entry level DP stack up against a mid level gasser? For us we started with a higher end gas and ended up with an entry level DP. It still has Corian counter tops but vinyl flooring and low end wood finishes i.e. photo finish. The OEM chose an Allison MH2100 transmission and Cummins ISB 300 rather than the more common MH2500 and Cummins ISB 340. This limits the maximum GVWR to 26,000# and GCWR to 30,000#. These types of compromises are common in this price range. Funny thing is the Freightliner Custom Chassis my OEM chose was actually a 28,000# GVWR 33,000# chassis but was "de-rated" because of the transmission. These sorts of compromises were ok with us because all gas units max out at 26,000# and GCWR of 30,000# but you are limited to a maximum toad weight of 4,000# for some and 5,000# for the rest. This would prevent us from towing our Suburban and possibly even our Acadia. This is where the compromises come into play. We chose to limit our options to units that have a 6,000# minimum tow rating. As it is our entry level DP has a maximum tow rating of 10,000# provided that GCWR and GVWR ratings are observed. We also don't like the long rear overhang and long turning radius of a gas unit. Now that we have our DP the ride is very nice compared to our former GAS MH.
msturtz 02/01/16 09:37pm Class A Motorhomes
RE: If you had to buy again today...

I have a Tiffin Red 38QRA with 340hp Cummins ISB. I will not buy another with less than 450hp ISL. is this one adequate ? Yes But there are times especially when passing that more power would be a safer route. This info is good to know. Thanks
Chowan 12/10/15 05:06am Class A Motorhomes
RE: If you had to buy again today...

I have a Tiffin Red 38QRA with 340hp Cummins ISB. I will not buy another with less than 450hp ISL. is this one adequate ? Yes But there are times especially when passing that more power would be a safer route.
nevadanick 12/09/15 07:54pm Class A Motorhomes
Monaco blinking "Warning" light

I have a 2008 Monaco Cayman with a Cummins ISB 6.7 L Engine, about 50K miles on her clock. On our recent trip from Saskatoon, SK to Victoria, BC we started having a new light blinking for about the first 20 seconds the key is on (no need to start the engine, the light still goes out). In that time period this "Warning" light goes out and never returns until the engine is turned off and restarted. The engine is running perfectly and all the gauges are showing proper results. I'm wondering if I might be able to cure this by just removing my starting battery ground straps for a few minutes? This method rebooted my 2012 Ford Explorer once when it got confused. Just switching off the power switches doesn't work. There is still some power available even with the switches off. According to my manuals this light usually is triggered by low coolant or water in the fuel. My coolant was down to the minimum level, but not below. I filled it to the maximum. The light still blinks? Has anyone had success rebooting Monaco electronics?
jim.smithjr 11/22/15 10:22pm Class A Motorhomes
Cummins ISB fuel pressure gauge install to monitor VP44.

My 1999 Holiday rambler endeavor has given me a few problems starting over the last few months. Since it did not come with a fuel pressure gauge and has the dreaded VP44 pump, I decided to install a gauge so I can watch it when I drive. It took me about a day of labor to put it in. It wasn't hard, just time consuming running 3 wires from the lift pump(fuel pump) to the driver's area. I had to take the dash all apart to find constant hot, switched hot, ground and headlight for the dimmer light on the gauge. I bought everything from glowshiftdirect.com They are a great company with excellent service and products. The gauge, pod, wiring, fittings and every single part I needed were purchased from them. The total was around $130 for parts. I'm happy to report that with the engine idling, I am getting about 11psi. Under WOT I am getting about 8psi. I called cummins to confirm these being acceptable and they are completely normal numbers. I have the cummins ISB 53 block, 5.9 275hp. This fuel pressure gauge is in my eyes, very important. Just wanted to give a heads up to any owners that have this engine about the gauge install.
glamisorbust 10/19/15 11:22am Class A Motorhomes
RE: Is 330 HP enough for a 37-40' DP

I have strong opinions on the HR endeavor. I have a 99 model, my brother has a 99 model, and my dad has a 2001 model. All coaches are built with exceptional quality, you'd be very happy with one. Both my brother and I have the Cummins ISB 275 and we are both happy with the performance. He pulls a 3 horse trailer and I pull a large flatbed full of desert toys. My dad has the CAT 350 and it has a little more power than ours, but I wouldn't say it's a huge, mind blowing difference. And I have driven all 3 extensively. I pulled mine over a truck scale fully loaded and it was 36,600# with trailer. Pulls that load at 75 mph no problem if you want to. I'm more comfortable at 65 though. All 3 of our coaches are 38' in length.
glamisorbust 10/02/15 08:39am Class A Motorhomes
RE: Is 330 HP enough for a 37-40' DP

OP, those are the years where DPs started gaining weight, even becoming overweight resulting in very little CCC. Behind a cabinet door there should be a sheet with the amount of CCC which IMHO needs to be 3,000+ lbs. You cannot compare a 5.9 pushing 19,000 lbs to something that's closer to 30,000 lbs so without knowing the weight it's just a guess. Yes the 1HP/100 lbs is a good ratio BUT I know of three different 330 HP MH engines but there are big torque difference: Cummins ISB 6.7L at 800 ftlbs but not in the years you are looking at. Cat 3126/C7 7.2L at 880 ftlbs Cummins ISC 8.3L at 1000 ftlbs. Although I made a lot of money with Cat heavy equipment, I prefer the Cummins ISC over the Cat C7 which started in 2004 plus the ISC has more torque as it's over a liter larger. I prefer the 8 airbag Monaco/Beaver/Safari/HR chassic over the 4 airbag Freightliner/Spartan. I feel they handle better on curvy roads and on windy days.
Ivylog 10/01/15 12:16pm Class A Motorhomes
Sort by:    Search within results:


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2016 RV.Net | Terms & Conditions | PRIVACY POLICY | YOUR PRIVACY RIGHTS