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 > Your search for posts made by 'JRscooby' found 662 matches.

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  Subject Author Date Posted Forum
RE: Air Flow Deflectors

In most cases with a TT, the front of the trailer is too far behind the back of TV to gain much. Mostly you just increase the size of the first suction zone. If you look at the freight trucks only a couple feet gap, and much of that is covered with cab extenders. Better would be something mounted to trailer, and back of trailer is most important.
JRscooby 03/31/21 07:19pm Travel Trailers
RE: Why do you Cummins guys want more gears

opps
JRscooby 03/31/21 02:47pm Tow Vehicles
RE: Why do you Cummins guys want more gears

Best performance, slam hand in door, keep it wide open. Tach drops below 1800? drop a gear, but it back to 2150. This is why diesels are happier with more gears. That's 350rpm range you are working in. Without lots of gears, you struggle to stay in that range. Last car I had with a stick, it was common to operate between 1400-3200 rpm running thru the gears. This was just sedate driving not thrashing it. Yes, newer pickup diesels have been designed to provide a wider range but not to the level of gas engines. You missed the main idea of what I was saying. The 8V71, Mack, and NTC Cummins where all about the same era. Mack used the high torque rise idea, and did not need to be changing gears all the time. Guy I worked with could not see the advantage of the 5 speed, replaced it with a 13 speed. The OD gave him more top speed, and in theory the much lower low gear would of been better starting the load and working soft ground. But the 5 always started 110,000 on any paved or gravel road. A couple of times off road it would power out, refuse to move, but cable and dozer got it where they wanted it, unload and drive away. The hand with 13 never ran out of power but it would stop with a bang. Drivelines and differentials cost... Now a quarry had a genset powered by 8V71. Always ran at constant RPM, would not burn as many GPH as mine. A diesel can be set up to use the multispeed, but just because it is diesel does not mean it is.
JRscooby 03/31/21 02:47pm Tow Vehicles
RE: Why do you Cummins guys want more gears

Because it is MOAR! speeds? 10 speeds and more are needed to optimize gas engines. Why not use them in diesels too? Diesels don’t care. While both types benefit... Actually, the other way around, gas engines are happier over a wider range of RPM. If the engine is happy between say 1800-3500rpm, you can space the gears out more than if the engine is happy over 1500-2500rpm. Of course really with modern engines, the power output is so great we are talking incremental improvements. Probably the biggest benefit is not having to mess around with a deep rear axle ratio for all but the heaviest trailers. It used to be a choice between good towing performance vs non-towing performance if you wanted to run in top gear. With 8-10 gears, the rear axle ratio is far less important and the truck will simply select the gear ratio it needs based on loading and speed. I don't know much about little diesels, but I know all diesel do not have equal power bands. 318 hp Detroit & 13speed. Best performance, slam hand in door, keep it wide open. Tach drops below 1800? drop a gear, but it back to 2150. 300 HP Mack, 5 speed? Same load, 4:17 instead of 4:44 rear. Pull her down to 1200, neutral to wind her up to 2100 to put back in gear. NTC Cummins, 335 hp 13 & 4:44? Near same power band as Detroit except higher HP and torque. Would stay with Mack, but worked driver more. And if you wanted to hammer west across Kansas, better watch the Pyro or will burn hole in piston. My experience tells me that more speeds in trans would only help if the engine could be tuned for better power/economy in a narrow band. And adding OD gears allows you to keep the lower speed rearend. And higher speed rears put more strain on everything but the axle shaft when starting a load.
JRscooby 03/31/21 08:58am Tow Vehicles
RE: Hitch height

If you are already 3.5" lower in the front, that's about as far as I'd lower it. I think its odd that they would say 1.5" above the ball prior to loading, as different vehicles have different spring packs and settle differently than others. Maybe they just recommend that as a starting point. Just curious, what truck and what trailer? If you have big enough truck combined with small enough trailer you may not even "need" WDH. Assuming you have a front compartment, you might want to load up some heavier items there to increase tongue weight. I've got my tools, a hydraulic jack, chairs, beach umbrella, wood blocks for the stab jacks, small air compressor, etc up in the front compartment. That extra weight there helps with towing stability. I think they are saying have the coupler above the ball when you back under. OP, first, raising the tongue will always decrease the TW. If the TV does not squat, the front come up when tongue is loaded on ball, what makes you think you need WDH?
JRscooby 03/31/21 07:36am Travel Trailers
RE: Good Deterrent Against Home Burglars

Sign on door HONEY, THE SNAKE IS OUT OF BOX. WATCH IT DOES NOT GO OUT THE DOOR!
JRscooby 03/30/21 04:35pm Around the Campfire
RE: Bugs on Windshield

Millions of miles in a truck, I have killed enough bugs to wonder if man could survive without windshields to control the bug population. IMHO, Rain-X is worthwhile. But most is clean the bugs off at every stop. And clean all glass every day.
JRscooby 03/30/21 04:19pm Class A Motorhomes
RE: Electric Toad

There is no on switch or off switch on a Tesla. Your butt turns it on and your butt turns it off. :). Did god make it that way? Can a man, the designer or somebody that knows what their doing install a switch to flip when hooking up the towbar?
JRscooby 03/29/21 07:25am Dinghy Towing
RE: Electric Toad

I don't know anything about EVs, but have put some thought into the idea. Just what I know of other things mechanical and electrical, and some simple logic. It is a discussion I enjoy. And don't forget the extra fuel used by the MH to generate that extra power. Lot of inefficiencies built into such a system Yep, no free lunch. I think it would be more of a convenience. For what it’s worth, after 5 years of RVing with an EV in tow (on a trailer) it has never been a problem charging the EV. Either at the campground or mostly at commercial chargers while out sight seeing. Seriously folks, EV chargers are pretty much ubiquitous out there, and more and more every day. They just announced a 16 stall station at the local shopping plaza maybe 600 meters from our house. (12 Tesla v3 Superchargers and 4 public fast chargers) That and another dozen locations in the province, and there will be more announced next month. Bottom line, don’t worry about charging your EV. But what if the re-gen was controlled by the MH's jake circuit? Then the energy put into batteries would be some of what needs to be dissipated to slow the rig. Would need some way to pull power out of battery while towing because full charge would reduce braking power. Towing a Tesla There are all kinds of articles online. Some say a Tesla can't be towed, this one says yes. One article I previously read said the charging system would overheat if the vehicle was being flat towed. (I believe it was a Tesla) What cools the system when it is putting out power? Do they use a separate generator for braking? I have seen applications where battery voltage is put to the generator to start a engine, so assumed the drive motors would be used as gen to charge. I know a motor makes heat when powered to move a load. Does it make more heat when spinning on open circuit?
JRscooby 03/29/21 05:54am Dinghy Towing
RE: Removing seized shackle bolts?

The thin slitting disks really do cut like butter. Unless someone has used a thin cutoff wheel, they do not realize how fast it is . Its quick ,we are talking about 1/2 or 9/16 bolts here . Long before I would grab my torch ,and have sparks ,and heat flying under there ,as said I can have that nut off with a cutoff disks quicker then I can find the right socket ,again figure of speech :) To each his own. Yes, a thin disk cuts fast, when spinning at speed. Sparks will fly when using one. But it does not take much side pressure to break them. The path of sparks is easy to predict, compared to the pieces of a wheel. But the fact remains OP has posted no reason to need to cut the bolt with anything. And the fact he posted the question, does not have the tools to heat or cut tells me he will not be practiced with using the tools Most importantly, before you start cutting off nuts or bolt heads, think about what is stuck, what is spinning and how you’re going to complete the disassembly. Or you might end up cutting off an end that will make the bolts more difficult to remove. A punch ,and hammer will knock out any shackle bolt I have ever dealt with , but yes on a shackle bolt you don't want to cutting off the head of the bolt, just the nut. Hammer and punch will knock it out. However, if the bolt is seized in the eye or bushing (Once again, the OP has posted nothing to say his bolts are seized) it is easy to bend the hanger when beating on it. I bent 1 of the hangers on my 10 YO '54 GMC. OP, on the bolts you have already spun, not likely to have a issue, unless the sleeve is spinning in eye of spring, but I would run the nut out to flush with end of bolt, then tap it with a hammer. If the bolt does not move, put a oversized socket on the head of bolt, hold it in place with your 12lb hammer head. Then with your 3 lb, hit that bolt like it is a 30 YO wanting to date your teenage daughter. Less likely to bend it that way then failing around with a little hammer. The big hammer will hold the hanger in place so it does not move. The nut will keep the end of the bolt from mushrooming, and reduce the chance of it bending. Once you wake it up, move it 'til the nut stops it, the hammer/punch will take it on out with no issue.
JRscooby 03/28/21 09:33am General RVing Issues
RE: Removing seized shackle bolts?

It was a figure of speech, which I hoped most would get it, but apparently not . :) I don't mess with those rusted frozen bolts, I grab my 4.5" grinder ,and cut them off, what on a 1/2 bolt 30 seconds per bolt about 5 minutes more or less those shackle bolts are off. All those great ideas are okay penetrating oil , impact wrench etc , but not for me. Working with little stuff like a TT, likely 3/4 wrench or smaller, and 10 years or less old, put the impact on the nut, wrench on bolt. In seconds, ready to knock it out. The biggest chance of damage will be with the hammer. Earlier I told how to avoid that damage. Once the bolt is cut off, you need a 3rd hand if, unlike in the OP's case, the bolt is rusted in place. Cut off wheel or SawzAll for the win. OP, something you need to think about. In times past, I have used a acetylene rig to cut off nuts and saved the threads it screwed on. A cut off wheel to remove bolt head is not a problem, if I have room to work. But I have worked with that kind of tools all my life. A grinder, cut-off wheel or even a Sawzall can cut the softer and thinner steel of the hanger faster than it will cut the bolt. Are you sure you will have the skillset to cut the bolts without damaging the hanger? And even more important, working under the trailer it would be easy to cut you, and that kind of cut hurts like bell even if not serious. From your post, your bolts are not rusted in, or they would not spin. Likely the only rust in your way is on the threads between nut and end of bolt. Use the wrench to spin the nut instead of bolt. Should be a piece of chicken
JRscooby 03/28/21 06:53am General RVing Issues
RE: Changing flat tires?

First thing I did was call the State Police non 911 number and ask for a block. They transferred me to the local Sheriff dispatcher and I had the block not 5 minutes later. .I'm not sure what you mean by a 'block.' Road cones? Sometimes LEO will put their car in the lane to warn traffic of your vehicle in/near the roadway. Most often they will just order a tow.
JRscooby 03/27/21 10:21am Towing
RE: Changing flat tires?

Wheel bearings, if installed and maintained properly, have very little chance of failing. From my experience, bearing failures have occurred from bearings that are tightened too tight or haven't seen fresh grease in years. This is very, very true. OTOH, more than a few millions of miles driven, much in equipment others thought to old to make a profit. Other than a flat tire I can't think of any breakdown where I had all the parts and equipment with me to solve the problem. For my camper, I will carry everything I need to fix anything that would keep me from getting it home.
JRscooby 03/26/21 01:46pm Towing
RE: Removing seized shackle bolts?

Since he apparently destroyed the knurling in the shackles with the impact wrench, my thought is that using power tools is not the smarter thing to do. A little hard work builds character. Did the power tool destroy, or the fact he turned the bolt? IMHO, it was his lack of understanding of how nut/bolt should be works. To loosen or tighten the fastener, turn the nut. To get it off on, does not matter as much. With an impact wrench it is not possible to determine how much torque you are applying so that you can oppose that torque with the wrench on the other end. I believe that he did in fact use the impact on the wrong end but hand tools are the better option IMO. With rusted fasteners, the impact action will break the nut loose with less force needed to hold the bolt. If the bolt starts to turn, put more force in the hold, just like working with hand tools. OTOH, often when turning a wrench much of the force is pushing sidewise, not rotating. OP, on the bolts you have already spun, not likely to have a issue, unless the sleeve is spinning in eye of spring, but I would run the nut out to flush with end of bolt, then tap it with a hammer. If the bolt does not move, put a oversized socket on the head of bolt, hold it in place with your 12lb hammer head. Then with your 3 lb, hit that bolt like it is a 30 YO wanting to date your teenage daughter. Less likely to bend it that way then failing around with a little hammer. thanks all. I was holding the back side with a wrench while trying to use the impact, but I did have the impact on the outside which is the bolt in this case. I'll try it again crawling underneath and use the impact on the nut instead. I don't have a right angle grinder but if this does not work this may give me an excuse to buy one. Thanks again all! I could have those bolts off with a grinder quicker then you can find the right size socket :) I have cut off many bolts in my life. Most with a torch but many with a grinder or cutoff wheel. You must have a whale of a cutter, or one disorganized toolbox...
JRscooby 03/26/21 12:08pm General RVing Issues
RE: Changing flat tires?

Thanks for all of the info, we have Roadside Ass. but my wife says I'm very impatient. Great idea on a practice round of changing a tire. Also I am getting TPMS system, researching that now, with a 38' Outback I'm concerned that the signal from the tires will reach the truck, probably needs to be another post. Thanks I make it a point to service one set of wheel bearings using only tools carried in my rig. (And make sure I have parts to replace bearings if needed) DW's car, there is white paint where the jack needs to go. And we make sure she can use the tools in car to change a tire. I would hope somebody would help her, if I could not come, but she knows enough to be sure the car is not damaged.
JRscooby 03/26/21 07:21am Towing
RE: Changing flat tires?

I have posted my thoughts on tire change many times. First, pick a nice day, and change a tire at home. This will make sure you have what is needed, and know where it is and how to use it. Don't want to have school in the dark and rain with traffic blasting by. Next thought; To work most jacks likely to be carried, you need to be mostly under the vehicle. Not a issue, you can watch the jack, and if it falls you have as much room as you crawled into. But often somebody will jack it up, get the flat off, and discover need to go up a little bit more. Do you put the flat back on, or take the chance? IMHO, a much better plan is pull that flat up on blocks so the center of axle is a little higher than when setting on inflated tire. Then put jack under, and lift until the block will move. Crawl out, remove block and flat. You will have room to put spare on. As a bonus, you don't need to pump or crank the jack near as far.
JRscooby 03/26/21 05:39am Towing
RE: Removing seized shackle bolts?

Your comments didn’t sound like a HF endorsement to me. I had 3 sizes of angle grinders on my tool truck. But when the city got on my donkey about that truck in driveway, I started to leave it in the garage at the lot where I parked my equipment. (Old gas station) For my hobby use at home, I bought the HF tool. A little grease made it work for that use. The OP has lived, bet at least 3-4 decades, and never had need of the angle grinder. Needs to cut what a dozen bolts? Why spend the money for a higher quality tool that will likely be used for a hour, the lay around forever? The last 20 years I worked I bought a lot of HF tools. If I needed the same tool to wear it out, and it saved enough effort I would buy better tools. (Example; 3/4 drive socket set. Snap-on ratchet, Craftsman breaker bar, and S-K impact sockets for most used sizes.) Since he apparently destroyed the knurling in the shackles with the impact wrench, my thought is that using power tools is not the smarter thing to do. A little hard work builds character. Did the power tool destroy, or the fact he turned the bolt? IMHO, it was his lack of understanding of how nut/bolt should be works. To loosen or tighten the fastener, turn the nut. To get it off on, does not matter as much.
JRscooby 03/26/21 05:13am General RVing Issues
RE: Removing seized shackle bolts?

Right angle grinder with a slitting disk makes it EZ-PZ. Forget the HF JUNK. I needed a angle grinder for home use, bought 1 from HF. After the 2nd exchange, I took the front apart and put grease on the gears. Has worked for years. OTOH, a Matt gas torch will heat those small nuts. Many times you can break the nut loose by working it back and forth rather than brute force. With a wrench or break over with socket, try to turn in loosen direction, then tighten, loosen, tighten, and back and forth. Usually after a few times you will begin to feel it move a little. And then more. Until it finally comes loose. And yes, soak it first. That does sometimes work, but a impact on the nut is better to break it loose, and less likely to break it off. When you have the new parts installed, spray Fluid Film on the springs and related hardware so you don't have a rusty mess again. Re coat annually, it only takes a few minutes. A dab of anti-seize close to where the nut will seat will let it come off with no more maintenance. Keep pins greased, never need to take it apart again.
JRscooby 03/25/21 04:01pm General RVing Issues
RE: Removing seized shackle bolts?

Always put a wrench on both ends of a shackle bolt, the fact that it turned says that the knurling was stripped out with your impact wrench. Lose the impact wrench and use plain wrenches when removing AND installing. Add a piece of pipe as a cheater ! You are dealing with what, a 7/16 bolt? Some good penetratingly oil is likely a good thing. Hold the bolt, turn the nut to break it loose. Once loose, spin the bolt a couple of turns, (break the bolt loose before drive it out) then run the nut off
JRscooby 03/25/21 08:23am General RVing Issues
RE: killed new Jeep Wrangler by Flat-Towing It in 4-Low !

I like the idea but I would think it would require some kind of special towbar. I don’t think traditional tow bars are meant to push. There would have to be some pretty funky software written by the manufacturer of the EV as well. Thinking it might be awhile. :). The software is way past me. I hate my hand-me-down smart phone because it is hard to make calls compared to my old flip phone. Special towbar? The one used by everybody that doesn't think their toad needs brakes takes a lot of pushing. AFAIK, no EV manufacturer has said their product is good for 4-down. But I can't see near as much trouble as IC vehicle. Normal brake and light solutions would transfer. If could tell it to regen when Jake comes on, so much better.
JRscooby 03/24/21 10:46am Tow Vehicles
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