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 > Your search for 'cummins isb' found 59 matches.

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  Subject Author Date Posted Forum
RE: Given choice gas or diesel powered fill time coach

Diesel today here in surprise, AZ(phoenix suburb) is $2.59 and regular unleaded is $2.85. And the oil change on my cummins ISB is 17 quarts and a filter. Not much more than a gasser and it will last 10-15k miles.
glamisorbust 07/22/15 05:29pm Class A Motorhomes
RE: 99 Holiday rambler Endeavor,.. First DP?

That sounds like a lot of miles for that year. I have the exact model you're looking to buy and it's a gem. We really like it. The 5.9 cummins is a great engine, but there are a few things to look for on it. First thing is the VP44 fuel injection pump. They are known to fail when they are starved for fuel. When and if the lift pump(fuel pump) starts getting weak or fails altogether, it will take out the injection pump also. This is around $3,000 to get replaced. The lift pump is around $50 for a stock one. I would ask him about the injection pump to see if it has been replaced, along with the lift pump. Second issue is the 53 block, google it. About 50% of these cummins ISB's were made in brazil, and they were cast with a large "53" on the side of the block. These blocks are known to crack and start leaking water. If it's not leaking by now it probably never will. But you need to let the engine warm up and cool down properly to avoid a problem. Mine has the 53 block and I have not had a problem. The holiday rambler endeavor is an awesome coach. You'll love the large single slide, air suspension and air brakes. The build quality is far above average. For $25k you can't go wrong. Take it for a drive and see if it checks out. The 5.9 cummins if it's running good now should go twice as far if not more as it already has. Diesel engines last an incredibly long time. The power from that engine is pretty impressive as well.
glamisorbust 07/21/15 09:29am Class A Motorhomes
RE: Thinking seriously about a used DP, never had a diesel

I think you'll really like the cummins ISB. We also have two GSD's that come along with us. They really like being able to roam around while we're driving to our destination. The exhaust brake is important even on flat land. I would not be afraid of a little delamination. How much are they asking for the unit? Should be in the $30-35k range. Get ready to sign the papers after the test drive. You won't believe how quiet and smooth it rides. Oh, and regarding fuel mileage. The ISB in mine gets about 7.5 mpg in the mountains, hard on the throttle, climbing and towing a CRV. On flat ground, 60 mph, I have gotten around 10 mpg. 60 mph is the sweet spot for mileage.
glamisorbust 07/18/15 01:30pm Class A Motorhomes
RE: Newer diesel engines

I read the book, don't idle more than 10 mins. . That is called wet stacking. Idling diesel engines is BAD and leads to excessive engine wear. So for those guys at the campground who crack up their diesels at 5am and let them idle for an hour, you're doing damage to your engine as well as annoying other campers. A little more to that I think, OTR diesel trucks will sit and idle for hours at a time sometimes with no apparent harm. The manual on my 2013 Cummins ISB says not to idle for "extended periods". I once called Cummins and asked for clarification on what an extended period is. I was told not to idle it more than 10 hours or so. It was important to me at the time because I was boondocking and my generator had quit. I had to run the main engine to keep the batteries charged. I should have asked if it would regenerate if I used the cruise control to elevate the idle while parked. Idling is not good for engines and I try to avoid it as much as possible except for brief warm up and cool down periods.
Groover 07/16/15 03:03pm Class A Motorhomes
2006 Holiday Rambler Neptune 34 PDD (pros/cons?)

Hi, Going to look at a used 2006 34' HR. ~40K miles. Nada Retail $. What are your opinions on this model? Pros/Cons? 1. Roadmaster 204" chassis: GVWR 26.500. GCWR 33,000. Front 9500. Rear 17,000. 22.5" tires. 7K towing. Is Roadmaster comparable to Freightliner? Is 34' too short for a pusher? 2. Allison 2500 transmission. 7K towing. Is this sufficient or do I need the 3000? 3. Cummins ISB 300. Thanks in advance.
nomad 289 07/15/15 02:23pm Class A Motorhomes
RE: searching for a coach

Too much air in new tires especially will give loose handling but if the pressures are around 100 psi then there's probably something else wrong. 340 HP will be a Cummins ISB 6.7L engine... a good LITTLE engine but less than 700 ft lbs of torque. A Cummins ISL (400-450 HP) 7.9L engine is limited to 1250 ft lbs as that's the max for the Allison 3000 tranny. 340 compared to 400 not a big increase, but 690 to 1250 is a huge difference. Maybe in your coach.... I run 110 in the rear and 120 in the front AS RECOMMENDED by CC!
Sully2 07/11/15 10:29am Class A Motorhomes
RE: searching for a coach

Too much air in new tires especially will give loose handling but if the pressures are around 100 psi then there's probably something else wrong. 340 HP will be a Cummins ISB 6.7L engine... a good LITTLE engine but less than 700 ft lbs of torque. A Cummins ISL (400-450 HP) 7.9L engine is limited to 1250 ft lbs as that's the max for the Allison 3000 tranny. 340 compared to 400 not a big increase, but 690 to 1250 is a huge difference. http://cumminshub.com/img/figures/2010-cummins-graph.png width=500 Cummins ISL http://www.engine-trade.com/uploadfiles/Performance-Curve-and-Drawing-of-CUMMINS-ISLe300-30-Diesel-Engine-for-Vehicle.jpg width=500
Ivylog 07/11/15 05:42am Class A Motorhomes
Anyone using an airdog FRRP on their cummins ISB?

I have a 1999 holiday rambler endeavor that just recently started giving me trouble. The engine is a cummins ISB 5.9 275HP. It has run great for the year that I have owned it. The recent trouble is that it just cranks and cranks when I go to start it. Sometimes I get lucky and it fires, sometimes not. I have been doing tons of research and found that the stock lift pump is a weak part that will take out the VP44 injection pump if it fails. It already happened once to the previous owner and it was very expensive. As a preventative maintenance item, and for some piece of mind, I have been thinking of adding an airdog FRRP fuel pump and ditching the stock lift pump. This pump fits in the place of the stock lift pump and can be installed in 30 minutes according to their website. Has anyone used one? How did you like the results? Did you install a fuel pressure gauge? The pump is about $300. What do you guys think?
glamisorbust 07/07/15 11:23pm Class A Motorhomes
RE: Front mounted diesels in class a and c

I saw a 2014 Jayco Seneca 37TS at our local dealer recently. It's what they're calling a "Super C." It's on a Freightliner chassis and has a 6.7L Cummins ISB-340 in the front. There may be others out there - this is just one I've seen "in person."
Second Chance 07/01/15 08:40pm Class A Motorhomes
'99 Cummins ISB Diesel engine won't start.

Hi everyone. I have a new problem with my '99 HR endeavor that I need to get sorted out. I have a new problem that just started with the engine yesterday. So here goes... Got up to the fuel pump, shut it off and fueled up. Came back in to start it up and it usually cranks for about a second before starting. It cranked for about 5 seconds before it actually started. Weird. Thought really nothing of it until I got up to the lake. Pulled in, shut the engine down and five minutes later a better spot opened up so we wanted to move. Except for now the engine would just crank and crank without firing. So I tried several times cranking for maybe 30 seconds, give it a break for a few minutes and try it again. Still just cranks. I went to drain the fuel/water separator but only diesel came out, no water. Plus, the generator was running the whole time so I know it's not the fuel. Came back in, bumped the key a few times and nothing. So I turned the key on again, this time did not wait for all the warning lights to go out, and bam, it started. Fast forward to leaving the lake today...started just fine. Drove it home 30 miles and parked it to clean it out. An hour later, went to move it to dump the sewer and had the same problem twice more before I was able to park it in my building. So what gives? Has anyone had this problem? Could it be a fuel relay or solenoid? Acts like it's not getting any fuel.
glamisorbust 06/27/15 03:11pm Class A Motorhomes
RE: Is this the start of Workhorse again? Isuzu?

The engine produces 550 ft. lbs. of torque. The torque converter is the multiplier, making it capable of over 1000 ft. lbs. Just like any other engine/transmission combination. :W Now toss in the rear end gear and you can really confuse the issue. The fact of the matter is this engine does NOT make diesel like torque. Through gearing, etc, it can get a decent tow rating, but it will never have diesel like torque. The Cummins ISB, the smallest main stream diesel used today, starts at 660 #/ft of torque, and depending on the application goes all the way to 800 #/ft. There is nothing wrong with a gas engine, but to say this engine will compete with a diesel is stretching it a bit. People still care about the torque numbers these days? Funny. Only those who understand it. :W I wonder how many people know you have to know the torque # first to get to the HP number.
Bruce Brown 06/25/15 09:22pm Class A Motorhomes
RE: Is this the start of Workhorse again? Isuzu?

The engine produces 550 ft. lbs. of torque. The torque converter is the multiplier, making it capable of over 1000 ft. lbs. Just like any other engine/transmission combination. :W Now toss in the rear end gear and you can really confuse the issue. The fact of the matter is this engine does NOT make diesel like torque. Through gearing, etc, it can get a decent tow rating, but it will never have diesel like torque. The Cummins ISB, the smallest main stream diesel used today, starts at 660 #/ft of torque, and depending on the application goes all the way to 800 #/ft. There is nothing wrong with a gas engine, but to say this engine will compete with a diesel is stretching it a bit. People still care about the torque numbers these days? Funny.
OhhWell 06/25/15 08:35am Class A Motorhomes
RE: Is this the start of Workhorse again? Isuzu?

The engine produces 550 ft. lbs. of torque. The torque converter is the multiplier, making it capable of over 1000 ft. lbs. Just like any other engine/transmission combination. :W Now toss in the rear end gear and you can really confuse the issue. The fact of the matter is this engine does NOT make diesel like torque. Through gearing, etc, it can get a decent tow rating, but it will never have diesel like torque. The Cummins ISB, the smallest main stream diesel used today, starts at 660 #/ft of torque, and depending on the application goes all the way to 800 #/ft. There is nothing wrong with a gas engine, but to say this engine will compete with a diesel is stretching it a bit.
Bruce Brown 06/24/15 08:36am Class A Motorhomes
RE: Front End Diesel Class A

In the pecking order, it is just an A gasser that happens to have a (Cummins ISB) diesel engine. The rest of the chassis technology is A gasser. In the years these FREDs were produced, I would prefer the gasser, because the alternative GM and Ford . gas engines were more quiet at idle and cruise, a bit more powerful than the Cummins in the rare situations when peak power was needed. However, when you stomp on it to demand peak performance for a while, the Cummins diesel will top itself out at 3000 rpm, the GM up to about 4000, and the Ford a bit over 5000 rpm, which can be pretty noisy in an external cooler kicks in. People who have the Freds most likely prefer them, it is parallel to the gas vs diesel argument for passenger cars today.
tatest 06/17/15 04:09am Class A Motorhomes
RE: Reformed Toy Hauler member here. Your expertise needed

Watch the cargo carrying capacity. Easy to find MH with too little. And mind the chassis GVWR, GCWR, and gear ratio for what you are considering. We were considering the Winnie 27N vs the Newmar. 27N was 18k gvw and 4.88. Newmar is 20.5k and 5.38.Spot on. Even with a DP. They are not created equally. As an example a lower cost DP might have a Cummins ISB mated to an Allison 2500 transmission. The Allison is a bit of a weak link in the set up with a weight limit that may restrict your GCWR. Don't shop base on the hitch but do the math. The Thor Palazzo and Tiffin Red both fall into this category. Both are good rigs but they don't have the tow capacity you might need. The Palazzo literature as an example lists a 10K hitch but if you go by the listed GVWR and GCWR the chassis is limited to 5K Lbs. this is true that you cannot run with the Thor Palazzo at max GVWR and have anywhere near 10K towing however if you watch your weight you have plenty of room. Most normal priced DP units are in the same category. The Palazzo 33.3 has a shipping weight of about 21k with driver and fuel with a GCWR of 30K that leaves a lot of room for towing. With full fresh, grey,and black tanks and full propane with driver it weighs about 23k. Most people don't travel with full black or grey tanks. Depending on the use case you may not need 105 gallons of fresh water either. If you pack light you can still have plenty of tow rating left. You will never get that with a gas coach. The entry level DP units can work especially if you need to keep within a tight budget. Sure I would like to have a DP with a net tow rating of 10K, 15K or 20K but I can't afford $500K - $1.5 for a coach.
msturtz 05/26/15 07:44pm Class A Motorhomes
RE: Reformed Toy Hauler member here. Your expertise needed

Watch the cargo carrying capacity. Easy to find MH with too little. And mind the chassis GVWR, GCWR, and gear ratio for what you are considering. We were considering the Winnie 27N vs the Newmar. 27N was 18k gvw and 4.88. Newmar is 20.5k and 5.38.Spot on. Even with a DP. They are not created equally. As an example a lower cost DP might have a Cummins ISB mated to an Allison 2500 transmission. The Allison is a bit of a weak link in the set up with a weight limit that may restrict your GCWR. Don't shop base on the hitch but do the math. The Thor Palazzo and Tiffin Red both fall into this category. Both are good rigs but they don't have the tow capacity you might need. The Palazzo literature as an example lists a 10K hitch but if you go by the listed GVWR and GCWR the chassis is limited to 5K Lbs.
Dale.Traveling 05/26/15 07:13pm Class A Motorhomes
RE: Best year for a DP

My brother and I both have 99 HR endeavor's, my dad has a 2001 endeavor. All DP's, two with the cummins ISB 5.9 that run perfect, and one with the 7.2 CAT that also runs perfect. The build quality is beautiful. These were built to last.
glamisorbust 05/07/15 10:26am Class A Motorhomes
RE: fuel filters cummins isc

Mine is the cummins ISB and it has the two fuel filters inline just aft of the transmission on the right side. Easy access, the spinoff filter was easy, but the water separator won't stop draining fuel so I can't change it.
cgflyer 05/01/15 09:32pm Class A Motorhomes
RE: Class A Motorhome Engines

As to avoiding a V10, thats kind of silly. The V10 is and has been an excellent motor, and as of a few days ago Ford announced they are going to offering it in the medium truck market as well, territory previously you'd only find a diesel. That would be on account of the price of fuels. Diesel is 40 to 75 cents more per gallon. And the V10 motor has almost the same torque numbers. Well...yes and no. Fuel cost is definately an issue, the torque numbers have a bigger spread. The V10 is 362HP/457TQ in the Commercial Truck segment. The 360HP diesel offered (Cummins ISB) is 800TQ. If you opt for the smallest diesel offered, the 220HP ISB, it comes in at 520TQ. In the consumer Super Duty truck the new 6.7 PowerStroke offers 440HP/860TQ. My '13 PowerStroke is 400HP/800TQ and it's an animal. I don't see me ever going back to a gasser in a work type truck. An F150, sure.
Bruce Brown 04/13/15 06:10am Class A Motorhomes
RE: Winne Turbo Diesel or other V10 gas model???

In 1999 Winnebago made the Adventurer on a Ford chassis, a Chevrolet chassis and a Freightliner chassis. The freightliner had a 5.9 liter 275 hp Cummins ISB engine. It also had air suspension. One big drawback was the outside storage. The diesel model had only 95 cu. ft. of outside storage while the Ford and Chevrolet had 162 cu. ft. The freightliner had a GVWR of 23,000 lbs. while the Chevrolet had a 16,500 lb. GVWR, and the Ford had a 20,500 lb. GVWR. The 34' model was the only one with the diesel option. They made both a 35' and a 37' model, but they were only available on Ford chassis. Here's a link to the 1999 Winnebago Adventurer Brochure. http://winnebagoind.com/resources/brochure/1999/99-Adventurer-bro.pdf You might want to check the towing capacity. It might be only 3,500 lbs. Some friends of ours have one with over 200,000 miles on the odometer. They tow a Suzuki Samurai which is a pretty light vehicle.
Hikerdogs 04/08/15 02:44pm Class A Motorhomes
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