Lug Nut Torque

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Lug Nut Torque

October 12, 2011, 07:19:28 pm

99 320
275-80R-22.5

Anyone happen to know proper torque specification for the wheels on our 320. I'm putting new tires on it tomorrow. The tire dealer tells me they normally torque to 475 ft lbs which is right in the middle of the industry standard. Getting XZA3+, Load Range H. It has XZA3s on it now. Thanks.
jor

Re: Lug Nut Torque

Reply #1 – October 12, 2011, 07:49:06 pm

Quote from: jor – October 12, 2011, 07:19:28 pm

99 320
275-80R-22.5

Anyone happen to know proper torque specification for the wheels on our 320. I'm putting new tires on it tomorrow. The tire dealer tells me they normally torque to 475 ft lbs which is right in the middle of the industry standard.

Depends on whether wet or dry. Here's a link to a post with the Alcoa info Replacing Shocks with Koni's and Lug Nut Torque

Michelle

Re: Lug Nut Torque

Reply #2 – October 12, 2011, 09:31:40 pm

If you ever want to change a tire or check the torque on the new set of tires you had put on a couple of hundred miles ago, just buy a breaker bar, extension and a longer piece of pipe to slide down over it and then stand on your bathroom scale. If for example, you want to torque your wheel nuts to 420 lbs, go out 6 feet on the bar and add or take off 70 lbs on the scale depending on what side the wheel you are standing on. For the inside rear wheels, you will need the double sided socket to remove/tighten the inner stud/bolt. Make sure to apply torque while pipe is parallel to the ground for accurate readings.

I have removed and replaced propellers on big aircraft using nothing more than a big pipe and bathroom scales. Works like a charm and they never "flew" off.

Our 22.5 wheels in aluminum should be torqued to approx. 450 lbs. If they are steel, they go to 600 lbs. I usually add no-seize or oil to the threads and reduce torque 15-20%.

Re: Lug Nut Torque

Reply #3 – October 12, 2011, 10:28:58 pm

Great link, Michelle. Don't know why I couldn't find that. Hey Pierce, your technique reminds me of back in the day when I used to break VW axle nuts by jumping up and down on a three foot piece of pipe slipped over an old breaker bar with a 22mm socket welded onto the end. Nah, it must have been a lot bigger than that - maybe 40mm or something. Thanks to you both and thanks to Dick Mason. Hub piloted, dry, 475 pounds.
jor (using Joody's laptop)

Re: Lug Nut Torque

Reply #4 – October 12, 2011, 11:09:16 pm

Remember flywheel and axle were around 40-44mm. A couple of guys on the ground holding the engine and me will the long pipe on the flywheel. I bought a new German set of barrels and pistons for $23 for it.

Re: Lug Nut Torque

Reply #5 – October 13, 2011, 06:35:19 am

Quote from: joodyo – October 12, 2011, 10:28:58 pm

Great link, Michelle. Don't know why I couldn't find that. Hey Pierce, your technique reminds me of back in the day when I used to break VW axle nuts by jumping up and down on a three foot piece of pipe slipped over an old breaker bar with a 22mm socket welded onto the end. Nah, it must have been a lot bigger than that - maybe 40mm or something. Thanks to you both and thanks to Dick Mason. Hub piloted, dry, 475 pounds.
jor (using Joody's laptop)

On the axle nut, been there done that, felt the pain. The bar slipped, and I fell and sat on my ankle. I was probably 20 at the time, and it took me about ten minutes to get up. If that didn't break a bone, I must be tough. After that, If I couldn't get it loose from a seated position, I would just saw it in pieces, knock the pieces off with a punch, and use a new nut.

oldMattB

Re: Lug Nut Torque

Reply #6 – October 13, 2011, 07:37:33 am

Quote

On the axle nut, been there done that, felt the pain. The bar slipped, and I fell and sat on my ankle. I was probably 20 at the time, and it took me about ten minutes to get up. If that didn't break a bone, I must be tough. After that, If I couldn't get it loose from a seated position, I would just saw it in pieces, knock the pieces off with a punch, and use a new nut.

oldMattB

I put a "wanted" ad online and found one of these for $150.00 like new and it is an awesome tool. The "Original X-12" is the one I have.
TIA Products - Providing Lug Nut Wrenches That Work
There are other torque multipliers on E-Bay but they are much higher reduction ratio's and you would have to be very careful to avoid overtorqueing.
Torque Multiplier Heavy-Duty Lug Wrench Kit for RV Truck Bus Semi Tractor | eBay
This just might keep you out of the emergency room and the lingering after affects of an injury.

Re: Lug Nut Torque

Reply #7 – October 13, 2011, 08:22:17 am

I have a wrench like the first one, though I have not had occasion to use it yet. That second one looks pretty cool, too!

I would not try to do the things I did back in the late 70s - I was bulletproof back then!

oldMattB

Re: Lug Nut Torque

Reply #8 – October 13, 2011, 08:25:42 am

I assume most of us have had very similar experiences, but for me, I bought a 3/4" HD Air Impact Wrench to remove the stud pilot nuts on the MCI, it sure works great on these hub pilot nuts.
When your tired of jumping up/down, get the air wrench, makes life more enjoyable

Re: Lug Nut Torque

Reply #9 – October 13, 2011, 10:33:28 am

Sure does beat jumping up and down. I bought a twin hammer 1/2" that should do 425 lbs (@$59 sale) and just in case, a 1" good for at least 1200 lbs ($112 sale) Naturally, big diameter hose and tank for the big guy. My back hurts just looking in the compartment at the big impact.

The breaker bar, pipe and scale do a couple of things. For those who don't want to buy or carry anything extra, a six foot pipe fits on the floor in the compartment just fine and won't get in the way. My reason is I don't have any idea of the torque my impact or the last AAA service truck was. They used a really small cordless impact and while the lugs came off fast, I have no idea what the torque was when he put them back on. He popped a new battery in and a minute later it was done. Snap-on and Milwaukee at $400-$600.

For anyone changing their own tire, I just jack up the front until the tire clears the ground. Outside flat in the back, a short 2x6 is used under the inside tire. With minimum ground clearance, the tire can be worked back and forth to take off and re-install without lifting. Remember when lifting both rear wheels on one side, the only remaining parking brake is on the other side in the back so make sure the opposite front wheel to where you are working is blocked.

If using an 11.00/22.5 for a spare, it will hit on the top of the wheel well under some conditions (larger diameter by over an inch).

Re: Lug Nut Torque

Reply #10 – October 13, 2011, 10:52:36 am

Unless you want to join the Foretravel Broken Back Club, don't even attempt to change a tire on the coach, call for Road Assistance. Although we have never needed it we never leave home without a Road Service Plan. They are under $150 per year and a real bargain if you need it. You can also get great technical assistance by phone if you are trying to fix something on the coach by yourself.

Re: Lug Nut Torque

Reply #11 – October 13, 2011, 01:08:18 pm

Quote from: Kent Speers – October 13, 2011, 10:52:36 am

... never leave home without a Road Service Plan. ...

I like Kent's idea. I carry some Snap-On screwdrivers and some Craftsman wrenches for small jobs. My tool kit for big jobs is my iPhone. It's small enough to carry in my pocket without pulling my trousers down, and reported to be powerful enough to change a tire, tow a coach, or provide emergency transport.

It will event connect me with the best expertise available regarding almost any issue associated with my Foretravel coach. The iPhone won't actually remove or torque the lug nuts, but it will provide information on how to do it right, or who can do it for me.

Re: Lug Nut Torque

Reply #12 – October 13, 2011, 01:23:00 pm

But when I'm on highway 50 in Nevada or down Baja, my iPhone is about as worthless as Whitworth (BSW) tools. Does play a great game of solitaire. Can you say "llantera"?

Re: Lug Nut Torque

Reply #13 – October 13, 2011, 01:38:35 pm

Quote from: Pierce & Gaylie Stewart – October 13, 2011, 01:23:00 pm

But when I'm on highway 50 in Nevada

And that one (Loneliest Road In America) is one of our favorite E-W roads in the country.

Brett

Re: Lug Nut Torque

Reply #14 – October 13, 2011, 01:49:48 pm

Quote from: Pierce & Gaylie Stewart – October 13, 2011, 01:23:00 pm

But when I'm on highway 50 in Nevada or down Baja, my iPhone is about as worthless as Whitworth (BSW) tools. Does play a great game of solitaire. Can you say "llantera"?

I generally don't get out of "coverage." However, I have a friend who rides his motorcycle well off the main paths. He uses SPOT. SPOT SATELLITE MESSENGER :: HOME PAGE I follow his adventures via his email posts and SPOT map. He has done Atlantic to Pacific mostly on dirt roads and trails. Last summer he did US/Mexico border to Arctic Ocean, avoiding highways where possible.

If I travel by myself, or travel out of coverage, I will probably get SPOT to take along. It might summon help in case of emergency and reduce the urge for "llantera." (Did I get the meaning right?)

Highway 50 sounds intriguing. I may have to get SPOT and give it a try.

I still plan to depend on others to deal with my lug nut issues. I want to know the numbers, but let someone else twist the wrenches. (See, I am trying to stay on topic.

)

Re: Lug Nut Torque

Reply #15 – October 13, 2011, 02:38:30 pm

US 50 is billed as "America's Loneliest Highway" from outside of Reno over to I-25 in Utah. Has a couple of sleepy semi-ghost/mining towns and a great hot spring (Spencer's Hot Springs) not too many miles off the highway on flat, dirt or gravel road. Could be muddy in winter or early spring. Nice camping there or at: Hickison Petroglyphs Campground - Camping Guide Nevada for free or $5 with 5 minute walk to the petrogylphs. Just off the highway. No one was there the last time to collect and no drop box. About 20 miles east of Austin.

Since I found out that AAA changes tires and tows even a big RV free for 150 miles, I have their app in my iPhone. Like to make sure I have all the right tools so they don't mess it up. Have to make sure you have the extended coverage for an extra $25 I think. Was at a funeral with suit on the last time and they really knocked it out in a hurry.

"Spot" looks interesting and has a nice web site. Was not aware of it before. Thanks.

If you meant "tire shop", you got it right.

Re: Lug Nut Torque

Reply #16 – October 13, 2011, 03:49:58 pm

Keep in mind based on experience, as long as you are towing your car even if you are out of cell range you can take the car and leave the DW with to guard the coach while we heros drive an hour to get to where there is cell service. Of course Peggy and Carol had Trip and the 45 just in case the vultures got too close.

Re: Lug Nut Torque

Reply #17 – October 13, 2011, 05:19:19 pm

Quote from: Pierce & Gaylie Stewart – October 13, 2011, 02:38:30 pm

... If you meant "tire shop", you got it right.

OOPS!

I searched for "llantera" and came up with "colloquial: weeping, crying." I got it wrong.

I found llantas for tires, but didn't find a word for the shop. I do OK with Texan and Oklahoman, but not so well at other languages. (I do fairly well with Canadian if it's west of Quebec.

)

If I stay in Norteamerica, I'll probably be able to communicate enough to get someone to manage my lug nuts.

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Lug Nut Torque

October 12, 2011, 07:19:28 pm

Re: Lug Nut Torque

Reply #1 – October 12, 2011, 07:49:06 pm

Re: Lug Nut Torque

Reply #2 – October 12, 2011, 09:31:40 pm

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Reply #3 – October 12, 2011, 10:28:58 pm

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Reply #4 – October 12, 2011, 11:09:16 pm

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Reply #5 – October 13, 2011, 06:35:19 am

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Reply #6 – October 13, 2011, 07:37:33 am

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Reply #7 – October 13, 2011, 08:22:17 am

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Reply #8 – October 13, 2011, 08:25:42 am

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Reply #9 – October 13, 2011, 10:33:28 am

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Reply #10 – October 13, 2011, 10:52:36 am

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Reply #11 – October 13, 2011, 01:08:18 pm

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Reply #12 – October 13, 2011, 01:23:00 pm

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Reply #13 – October 13, 2011, 01:38:35 pm

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Reply #14 – October 13, 2011, 01:49:48 pm

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Reply #15 – October 13, 2011, 02:38:30 pm

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Reply #16 – October 13, 2011, 03:49:58 pm

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Reply #17 – October 13, 2011, 05:19:19 pm

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