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RE: Diesel to Gas Power Observation

No gasser goes down a step mountain with a heavy load like a diesel with an exhaust brake. I will never forget my shock the first day I took my 855 CID diesel to work to replace the 427 GMC spark plug motor. Everybody I worked with was running diesel, so I expected to climb hills faster. What surprised me was the lack of compression braking. I would still like to see side by each comparison, equal weights, displacement, gears, and wind resistance, diesel with exhaust brake to closed throttle on gas engine.
JRscooby 02/01/23 04:53am Tow Vehicles
RE: Diesel to Gas Power Observation

Another factor to think about is the fact the emission control systems on the diesels lack of dependability. This means the diesel has lost a major sales point. Then I think many that if their gas engine will last as long as most other components of the truck where is the advantage in a engine that will last 2-3 times longer? Still no glider kits for light duty trucks.
JRscooby 01/31/23 04:40am Tow Vehicles
RE: New here! 1986 Holiday Rambler Alternator

I can agree you want a replacement equal or higher output than original. When it comes to alternators I have had much better luck marking mine, and taking it in for rebuild instead of part store factory rebuild.
JRscooby 01/30/23 06:01am General RVing Issues
RE: Frame Stiffing to reduce Porpoising?

Well now that the weight issue is settled, and we have inspected the frame for signs of movement, I have thought of a way to see how much movement you are seeing. Using strong tape, mount a pointer at front of bed, near cab. Then attach a scale, (Grid work best, to check motion in all directions) to back of cad. Then use a mounted camera like the You-tubers use to record as you drive. Then you could slow the video, watch pointer in relation to grid. Now it would take somebody with more gee-I'm-a-tree than me to know how much frame is flexing.
JRscooby 01/30/23 04:43am Truck Campers
RE: Dipping my fuel tank

Never on a MH, but have dropped more than a few tanks. Can't imagine the need for 4 jacks on tank, but I have a plate I can replace the load pad on floor jack. Once I get a large tank (over about 50 gallons) down I pump it MT, just to ease control going back in. (Really prefer tank be near MT coming out, put often the neck will not allow) One thing you need to watch is be sure you have vehicle high enough to get tank out, or that you can do what you need under the vehicle.
JRscooby 01/29/23 02:11pm Class A Motorhomes
RE: Defroster workaround

Back in the day it was normal to have fan mounted to blow on windshield. I have seen small electric heaters that would work if you could run gen-set or inverter while driving.
JRscooby 01/28/23 12:48pm Class A Motorhomes
RE: Frame Stiffing to reduce Porpoising?

I'm betting facebook guy thought nothing of his 2" of flex too... I have to wonder about box frames. For 1 thing, C channel is used in heavy trucks. If the C can't be stiff enough, and fit in required space, double the C. Plus, if need to add a bracket to mount something, drill thru the vertical part, use bolt to fill hole, and torque tight with nut and flat washer. Loose very little strength unless big hole. Box section, drill and tap. But you can only get threads for the thickness of 1 side of box. A bolt thru hole drilled in both sides, then nut on other side, can distort both sides, and both flanges. This would weaken the frame a bunch.
JRscooby 01/27/23 06:49am Truck Campers
RE: DISCUSSION: 8 ft + crew cab vs. SUV

We have a Ram 4x6 (why do they say 4x4 when there are 6 tires on the ground?) crew cab, 8' bed. My ONLY complaint is we can't take it thru a drive thru car wash. So you have a 4-wheeled vehicle where 6 wheels are driven? That breaks the laws of physics, but I suspect you never studied law. ;) Technically it would be a 6x6, but in everyday language each set of dual wheels on a dually pickup is counted as a single wheel. At least with regards to being driven. So, a 4x4. It's funny because a tandem axle OshKosh snow plow truck is considered a 6x6 even though it has 10 wheels, but a typical tractor-trailer combination is called an "18 wheeler." The Oshkosh referred to likely has 3 axles, all driven, so 6X6. The "18 wheeler" (never heard before became CB slang) is most often 6X4 tractor pulling a trailer. Back in my youth ('60s and early '70s) the local GMC dealer sold a lot of 6X2 trucks. A guy I worked with has a couple of Macks set up 10X6 straight trucks.
JRscooby 01/26/23 08:47am Tow Vehicles
RE: Frame Stiffing to reduce Porpoising?

Perhaps my use of the word porpoising was just the wrong terminology and that set you off. What you are describing is what I am observing. The camper overhead rocking slightly up and down on rough roads. When that happens, I can look in the side view mirror and what I observe is these lines flexing ever so slightly. Now, I don't have a way to measure it, I guesstimated 1 to 2" but probably more likely in the less than 1" range now that I think about it again. So, everyone else, while you are driving down the road and come across a bumpy section and see the overhead portion moving up and down, take a look in your side view mirror down this sight line and I am betting you will observe some movement as well. A early indication you have too much weight in a El Camino is the doors won't open. There is always a gap between cab/bed to allow for flex. Early in this thread I told what I look for with regards to frame flex. Pick a good day, put your shoulders on the ground, look the frame over. If you see no signs, worry more about the sex lives of M&Ms, less about the frame.
JRscooby 01/25/23 05:02am Truck Campers
RE: Roadside Assistance

Quote: They pay the providers, the guy with the truck you depend on, a discounted rate. Here's one I hope they pay a discounted rate. $35,000 tow is crazy HP would not allow him to call his contract provider, so he would pay for what can't use, plus tow bill?
JRscooby 01/24/23 11:29am Class A Motorhomes
RE: Frame Stiffing to reduce Porpoising?

Interesting abet comical thread - frame flexing. If one were to do some Youtube searches you'll likely find videos where trucks from "the big three" are all driven on/over grossly uneven terrain and the frame flexing/twisting (or NOT!) of each OEM was shown and documented. Generally speaking some OEM's are worse than others and some years are better (and worse!) than others. - Mark0. Yes, frames will flex but big difference between a low speed off road once in a while vs repeated 2inch flex for hundreds/thousands of miles cruising down the freeway Look up fatigue loading failures on google to get an understanding. In a fatigue failure, the item typically looks and operates perfectly fine...until it doesn't. Most of the damage is microscopic and internal to the metal until it finally gives way. Do you think we should be a little more accurate about how much the frame is actually flexing. How far from the frame is the cabover section of camper? Guess 4 feet or more. 1/8 inch of frame flex would make for 6 inches of movement. And that does not include any flex in the camper itself.
JRscooby 01/24/23 05:10am Truck Campers
RE: Roadside Assistance

I have never had any kind of roadside service insurance. Now for years, I have had tow/service reimbursement as part of my auto insurance. Also, for short times early '70s and again early '80s I worked with/for companies that had contracts with AAA. So my ideas may be distorted. For the insurance company to make money they must charge more than pay out. This happens 2 ways; First, most people pay in for years, don't need service. And 2nd, and something the customer should look at; They pay the providers, the guy with truck you depend on, a discounted rate. This means if I have a choice of 2 calls, 1 where I will be paid full price as soon as I'm done, or the 1 where I get less money, and need to wait until sometime next month to get it. I know it is hard for many, but if instead of paying premiums for a separate policy, save that money pay for service as needed. Check for the tow part of comprehensive insurance.
JRscooby 01/24/23 04:55am Class A Motorhomes
RE: DISCUSSION: 8 ft + crew cab vs. SUV

Back when my great-grandfather first saw a 4-door, long bed pickup. "Man! You can get this stuck in both ditches at the same time!" Of course his last pickup was half ton '51 Chevy.
JRscooby 01/23/23 03:47pm Tow Vehicles
RE: Frame Stiffing to reduce Porpoising?

I will not weigh in on how good idea it is to stiffen the frame. Working on heavy trucks, if I suspect excess frame flex,* the first thing I do is look where crossmembers mount. Any sign of movement between the parts? Rust around the fasteners? Then spaces between the members. Any concentrated areas where paint is loose? And are there any places where it looks like the steel has been hot? Now if you decide you have a frame issue I have had pretty good luck using L shaped piece of frame steel, cut so near as tall as rail, and as wide as the flange. I try to end at crossmembers, and make ends angle, so flange end is longest. Use hard bolts, in holes drilled for tight fit, and flat washers. (NO SPLIT WASHERS!) Drill in pattern so no 2 holes are in the same vertical line, and spaced between half of, and the width of vertical frame section. Most important, NO HOLES IN THE FLANGE *(Never seen a case on Ford, 500 to 9000, and have extended the wheelbase on more than a few 9000s)
JRscooby 01/22/23 07:26am Truck Campers
RE: Rivian R1S

Most EVs have an electric clutch (or connect/ disconect) between the wheels and the transmission. They don't have many components but they have a single or in some cases a 2 speed transmission (very simple, nothing like what am ICE has) I am learning, thank you. I assumed each drive wheel had a motor. If a motor is driving 2, (or more) wheels would require some kind of differential to allow for turns. (ICE, towing spinning at least 1 differential, plus overdriving the driveshaft(s) Due to the high torque of the electric motors, the traction control systems are much more complex than ICE's and monitor wheel speeds with a much higher frequency and precision. The same problem happens with the regenerative breaking in snowy/icy condition. It is very easy to loose traction on ice and as it is involuntary (meaning the driver does not press the brake or anything else, it is activated automatically) so the system is monitoring not only the wheel speed independently several thousand times per second, it also triangulates with GPS and accelerometers to ensure the wheels are always "in traction". I can't see where this would prevent towing a functional vehicle, just turn it off. After all, if the road might be slick any driver that has head on shoulders, not between cheeks will turn off the jakes. All of this said, the problem is that flat towing something that complex may create unforseen problems, so lawyers said "How many more sales are you going to get by allowing flat towing? Is it really worth the risk?" And the answer was always "No". There is no inherent technical reason (like the transmission in an ICE), it is simply "Why risk it, we are selling every unit before its built..." Yes, I can see this issue. But this is not a reason a DIY that knows the systems could not work things out. I have towed one of my leafs and one of my BMW but just to see how fast did they charge, and o boy did they complained! Complained? Often gearsets designed to be powered from one end will make noise if driven from the other, and if load is on the other end, spinning faster than LOL, just thinking as I type I realize that the gearsets, driven backwards, spinning the input, even unloaded, faster than what is normally output, could in fact face same, or more problems as transmission of ICE. I now see why EVs not toads, without designed from start. Thank you
JRscooby 01/20/23 05:48am Tow Vehicles
RE: Pet Peeves in RV Parks

There is only one reason - stupidity. :B That's the short answer. Where the need to wake everyone is I don't know. By the time you start it, let it air up, move to hook up the toad, the engine will be near right up to temp & ready to have any demand thrown at it. How many of these diesel owners who think that they are being so careful with their engines, take the time to open up & check all of the fluid levels plus hoses for possible developing leaks, before they start up? The answer? Very few of them. Depending on outside temp, the engine will warm up faster, with least wear under light throttle. If you need to build air, you have waited long enough. For my working truck, once the oil pressure was normal, walk around vehicle checking lights and thumping tires, ready to roll across the truckstop. I don't think any CG is located where would need to be over 1/4 throttle for long enough to be warmed up enough to hit highway.
JRscooby 01/20/23 04:40am General RVing Issues
RE: EV alternative for light/medium duty trucks

I think getting away from burning fossil fuel is necessary for human population to continue. But statements that are on their face false is not the way to educate. Solar panels will not produce unless sun shines on them. Storage is another issue, not same as production. And we keep hearing "green hydrogen". Are you talking about methods of production, or the color? Does it store different than blue? Or Red? But abandoned natural gas lines back in service? And from what I understand higher pressures than originally used? And what really makes me ask questions is do we understand the difference between a ad and press release?
JRscooby 01/18/23 04:30pm Tow Vehicles
RE: Aluminum vs Steel flatbed

This question/concern may not be related but I have recently changed my F250(steel body) for a F350(aluminum body). I have heard that the tailgate of the F350 aluminum body is an integral part for strength and removing it may compromise the strength of the box. Has anyone heard a similar story and is it true. If you look at a old steel pickup box that has been used without a tailgate you can often see stress cracks in the corners where floor meets sides. Would aluminum be better?
JRscooby 01/18/23 10:28am Truck Campers
RE: Rivian R1S

That’s kind of what Toyota is working on. I saw an article a week or two ago. I think it was titled hitchless towing or something like that. A google search might bring up something. Essentially a vehicle with self driving autonomy would do that. There are a few manufacturers working on that although I think it’s still 2 or 3 years away. Who knows. The challenge would be the vehicle still needs to be fueled or charged manually. But of course there will be solutions for that too. Fun to watch the technology change. The video shows the idea would work. But that way both cars would need to supply power to move their self. To use on road, need to shorten the space between
JRscooby 01/18/23 06:27am Tow Vehicles
RE: Rivian R1S

Another idea; If driver of MH could power up the toad on the fly, make toad pull itself, or even push, on steep hills, or when need to accelerate. This would make room in battery for the regen. ROFL. Or what if it could fly, like a Jestons car, or teleport itself to the next destination…. Oh wait. Self driving is basically fully functional. You could have it virtually hitched to the Moho….. I have seen ads where the car will park itself for the driver. And the cruise control system will slow the car to maintain safe following distance, sound alarm and brake if gets to close. Bell 1 add locks the car door if a bicycle is passing a parked car. Are you saying there could not be a target on the back of MH, so a car does not stay tight to it? Now add V bars for safety, and to move the car under normal driving. We can already apply the toad's brakes from MH driver seat. Would it take a lot to turn on Regen with the MH's jake? And with that regen working to slow the combination, a lot of the waste energy could be put in battery, used to move the toad next day, or even supply residential loads when MH parks for night. But with the amount of energy that needs to be dissipated by a MH brakes in the course of a day of driving, I could see EV battery reaching full charge. When that happened, the regen braking goes away. Turn on EV, let it push against the towbar, help MH get up to speed. Now many will say the market is to small, nobody will work on this idea. But throughout history many things have been invented, not to sell, but to use. Somebody is likely working on towing their EV, even if the manufacture does not recommend. If it is somebody as dumb as I am, they are just doing mechanical things, just like a ICE. But if also can work with computers, who can say what they can come up with. Near 10% of cars sold worldwide last year where EVs. Somebody wants to tow one.
JRscooby 01/17/23 01:59pm Tow Vehicles
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