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Topic: New tires and other surprises (Read 5048 times) previous topic - next topic

Re: New tires and other surprises

Reply #25 –
Im actually going to try leaving the parking brake set so the caliper doesn't drop. Pull one pin out, clean reinstall per manual and then do the other. Helper springs are already installed. No clue if it will help or hurt but going to try.
Scott

Re: New tires and other surprises

Reply #26 –
You don't need to set the parking brake. Take one pin out tilt the pads clean or replace pin then reverse. It was simple.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: New tires and other surprises

Reply #27 –
Quote from: Texhub –
Ok folk time to educate me and us.
The tire wear = what cause is doing it.
Kingpin wear? I have watched "bus grease monkey" showing worn kingpin, replacing. But no word on what that wear causes.
Bearings loose, yup have seen that. Know signs, also have seen worn bearings and races.
Before brakes can be troubleshoot. Doesn't the issue of above need to be done.  This wear is expected on all of our coaches. So let's figure out a plan of attack to fix.
Brakes lots of good utube on our brake systems.
https://youtu.be/Ct1qy3HPiXM


Here's a big helper

Technical Help - Air Brakes

Anyone that has spent the big bucks for brake work. Maybe a list of all the little wear items replaced would help

Tire wear is one of those issues where it can be caused by a lot of things with similar results. On the steer tires. The aforementioned bearing end play. Out of balance. Blown shocks. Even the tire itself can cause scalloping. When I was an owner-operator. Michelin was notorious for having the steel belts slip a bit inside the carcass and would basically go out of round or not run flat across the tread and either pull or thump. And Michelin was also notorious at denying that they had a problem and is why I will never run Michelin's.  But that was the late 90's to 2007.
Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: New tires and other surprises

Reply #28 –
Quote from: Journey, Roam, Explore –

So I'm open to ideas but I know that I can't drive the coach the way it is now. Wasn't planning on doing a trip until June so I have time.

When I discovered my brakes were down to metal and the disc's needed replacing while having new tires mounted. I had no reservations of driving the coach to a shop. The brakes were already toast and the coach would still stop. In this case the retarder on level 6 is your best friend.

My local shop had no issue obtaining any of the parts needed. They of course hadn't seen many of the Meritor air discs.
Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: New tires and other surprises

Reply #29 –
For the tires google 'tire rivering'.  Michelin has a good explanation.

Think I'd be bleeding the brake fluid and looking for air in the lines. 
Freightliner MT55 w 24 ft box
All aluminum.

Re: New tires and other surprises

Reply #30 –
No brake fluid in an air brake system.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: New tires and other surprises

Reply #31 –
Too much toe in will also do that to the tire outer edge .

Re: New tires and other surprises

Reply #32 –
I always look for your replies. Your Otr experience is so Valuable to all. These are Toyo tires. Some concern about right pull when on good road. Good word on Michelin Tires. Tks
1999 U270 40 #5518
USN. USPS.

Re: New tires and other surprises

Reply #33 –
Quote from: Texhub –
I always look for your replies. Your Otr experience is so Valuable to all. These are Toyo tires. Some concern about right pull when on good road. Good word on Michelin Tires. Tks
To be fair to Michelin. That was many years ago. But I still won't run them (even on my 2 Subaru's) because they tend to be over priced. After all, someone has to pay for all those racing sponsorships. Been happy with my Toyo M-137's.
Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: New tires and other surprises

Reply #34 –
Bob had Toyo, replaced with Toyo.
Problem is looking like front end needs over haul. Steering box is new also all shocks with recent airbags. So everything else has to be gone over.  All rubber parts, bearings, rods etc.  Only then can brake and alignment be done.
I have been trying to find good information on what issues worn Kingpins can cause. I do see they will add movement in all directions to the wheel assembly on each side. Are there any signs that can point to (this xxx is caused by worn kingpin).? Improper bearing setup, damaged bearings add play to each wheel assembly. Are rubber parts replacement parts available in urethane? As these wear better.
1999 U270 40 #5518
USN. USPS.

Re: New tires and other surprises

Reply #35 –
You can check king pin wear by lifting the front axle and prying top and bottom to see movement. If king pins are not neglected on greasing they hardly ever wear out. My crane has 400,000 mi. and the king pins show no wear. My mistake was buying the king pins and bushings before checking that they were still good. I am out of the crane business and have a brand new kit sitting on a shelf for a 1981 International S 2500.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: New tires and other surprises

Reply #36 –
Quote from: markb –
For the tires google 'tire rivering'.  Michelin has a good explanation.

   
Thanks for the link.  My truck tires had depression wear twice but the local tire shop never said a word.  Now I know,  It's incorrect tire pressure.  Ill try that.  I was probably running them too low.
Robert and Susan
 1995 36' 280 WTBI 8.3 3060r
 1200 watts on the roof, 720 Ah of lithium's
 Build # 4637. Motorcade # 17599
        FMCA  # 451505
        18  Wrangler JLUR

Re: New tires and other surprises

Reply #37 –
Quote from: Texhub –
. Are rubber parts replacement parts available in urethane? As these wear better.

I personally wouldn't worry about urethane bushings. The rubber ones last a long time as well. Just not as long as urethane.

Just got a complete front/rear set from FT.
Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: New tires and other surprises

Reply #38 –
Bigdog,what rubber parts exactly did you get,asking because I have done all 10 of my torque rods and could walk you thru the process.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: New tires and other surprises

Reply #39 –
Quote from: John44 –
Bigdog,what rubber parts exactly did you get,asking because I have done all 10 of my torque rods and could walk you thru the process.
I have a bad torque rod mount on the rear axle (very small crack) Asked FT about it over a year ago and they said they would make a new one off of the blueprints. They never got back to me. When I contacted FT. They were very apologetic as the mounts were made off site. But they have the steel plates.  I said I also wanted to change out the bushings when the mount was fixed. So FT sent me the bushings for all of the torque rod ends and the plates to fix the mount. And sent it to me at no cost as an apology for being so tardy. I have included a photo of the bushings. I thought they were going to be the rubber ones. But they sure look like urethane to me. Probably easier to install the urethane bushings. I offered to pay for the bushings. But Foretravel insisted on sending everything gratis. So they certainly earned respect for doing that when they didn't need to. So well done FT.

EDIT to add: I have eight of those bushings. Enough to do the rear axle.
Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: New tires and other surprises

Reply #40 –
Ive always been concerned about using the urethane bushing because of the deceased torsional movement inherent to there design. I think if your coach was to be on flat asphalt its entire life they would be fabulous. I use mine off of flat asphalt a lot more than most and think that it would increase the torsional loads on the bars and the coach by not flexing as much. For my application I think I'll stay with the rubber mounts.
Scott

Re: New tires and other surprises

Reply #41 –
Was under the coach today. Have a better view now of the axel plate. Looks like a Rockwell RS21.
Now to find out what the other parts are ...
'99 U320 40 WTFE
Build #5462,
1500 Watts Solar 600 amp Victron lithium
2012 Jeep Grand Cherokee Overland Hemi
Instagram bobfnbw
Retired

Re: New tires and other surprises

Reply #42 –
Bigdog,those are the same ones I used,you can get extra nuts and bolts at Fastenal,I had some where the metal piece was rust
welded to the bolt and had to cut the 1 inch bolt in 2 places to remove.They do seem like urethane but a soft version.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: New tires and other surprises

Reply #43 –
Quote from: John44 –
Bigdog,those are the same ones I used,you can get extra nuts and bolts at Fastenal,I had some where the metal piece was rust
welded to the bolt and had to cut the 1 inch bolt in 2 places to remove.They do seem like urethane but a soft version.
Yes they deflect fairly easily when squeezed. So they are much softer than ones used for sports cars. As the only time I will go off road is in the middle of an accident. I won't worry about them being to stiff.
Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: New tires and other surprises

Reply #44 –
Quote from: Pamela & Mike –
Your rotor # should be Meritor 3218K167 (verify to make sure)
Pads Kit 15625PM
Slide pins Kit 15016
Helper springs Kit 15018
You may need a caliper rebuild kit and new slide pin bushings
You also need to check the slack adjuster for proper operation and make sure that the caliper havent been over greased causing the caliper not to retract.

Mike
Thanks for those part numbers. Right now the coach is at heartland truck sales and service in Oklahoma City. They're going to have somebody from Freightliner come over and verify part numbers. Don't know how long the coach will be here but I show them that find it parts has these in stock.
It's been very difficult to get into a bay long enough where they could lock my coach in at night. I was getting kind of frustrated waiting. The big concern is finding the correct parts which is a problem right now with the supply chain being what it is. I'll update when I know for sure.
Does anybody have a part number or link to the clay based grease that we use on these braking systems? I could not find it.

Meritor Air Brake Grease, 2297X7304 Amazon.com: Meritor Air Brake Grease, 2297X7304 : Automotive
Found this doing a search for Meritor  air brake grease. No mention about it being clay-based even on the meritor site...
Thanks!
Bob
As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.
'99 U320 40 WTFE
Build #5462,
1500 Watts Solar 600 amp Victron lithium
2012 Jeep Grand Cherokee Overland Hemi
Instagram bobfnbw
Retired

Re: New tires and other surprises

Reply #46 –
Quote from: Doug W. –
clay based grease



Mobil Mobiltemp SHC 32 14oz Tube: Amazon.com: Industrial & Scientific

That be what I use. One tube will mot than do it.
As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: New tires and other surprises

Reply #48 –
Shop is looking at the coach now. They're finding that the driver's side caliper wasn't working either. They want to replace the caliper on the driver's side rear, they don't know about the other side yet. This is going to get expensive...
'99 U320 40 WTFE
Build #5462,
1500 Watts Solar 600 amp Victron lithium
2012 Jeep Grand Cherokee Overland Hemi
Instagram bobfnbw
Retired

Re: New tires and other surprises

Reply #49 –
Quote from: Journey, Roam, Explore –
They want to replace the caliper on the driver's side rear, they don't know about the other side yet. This is going to get expensive...

You need Meritor KIT 15007 for left side caliper major repair kit
                Meritor KIT 15006 for right side caliper major repair kit
These are major repair kits for rebuilding those calipers. Everything is included in these but the caliper housing to fix your calipers. These are expensive enough but a lot less than trying to find a complete caliper.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."