I got the shakes

[Octaneforce]

My platform is 1993 fleetwood coronado class a p30 with rear disk brakes (p32?) and 454.

I put 6 new tires on it a few months ago and a shake developed as soon as i got it back from the tire shop, so i assumed it was the tires. They are sumihoto 8r19.5. They were not the cheapest tires i could get. I never cheap out on tires.
Anyway the rig has been back to the shop about a half a dozen times for this shake and it has not changed. They replace something say its fixed, and then the truck behaves exactly the same.
So far ive done 4 new bilstien shocks, bilstien steering stabilizer, supersteer trac bar upgrade, 2 new rims, 2 of the new tires replaced (warrantied). The front end is tight, springs and airbags are fairly new and i keep the bags at 80psi. Ive experimented with different bag pressures and never noticed a difference. If i continue to pour money into this pile of junk im going to change to non bag coil springs from supersteer. Thats would pretty much be the last thing i could think of. Unless my wheel cover simulators are making it shake, which i didnt think of until just now. The shake feels like an up and down shutter. It starts at 60 and gets worse as you accelerate. I will say the truck drives very steady and feels safe with all the new parts, it just shakes. Which is agonizing.

[Octaneforce]

DrewE wrote:

Bruce Brown wrote:
If the bead wasn't seated that would lead me to believe there was no air left in the tire first.

Sounds to me like a bunch of incompetent clowns did your tires. Wow, just wow.

If the valve stems break off, it's a pretty good guess that there won't be much air in the tires quite soon thereafter. Logically it would seem that the tire unseating itself is a result of the valve stem failure, which itself could be due to an inappropriate valve stem or inappropriately heavy attachment (an extension?) put on it.

Oh yeah now that you mention it, they had big extensions on the inner valve stems so the inner tire could easily be aired up. The big extension along with the vibration could very well be why they broke off.

The shop that fixed it during my trip didnt use any extensions. So now the valve is pretty deep in there. Im not sure how i would fish a tire inflator inside the wheel to adjust the air pressure.

And to the guys who are asking what shop/clowns did the tires initially, its a local long island shop that i really dont want to bash because they were always so good to me prior to this issue. They still are, they really try to fix it they just keep failing. Its a heavy duty truck shop that works on buses and big rigs all day so i dont know why they cant nail down my rv issues. I think they are just used to working on nice newer trucks and not peice of **** 25 year old p30’s that jump lanes when they hit a pebble. Beleive me i am super frustrated and i appreciate the sympathy. I will be ordering centramtic rings when i get home. If that doesnt improve the situation im selling it and buying something on a ford platform.

[DrewE]

Bruce Brown wrote:
If the bead wasn't seated that would lead me to believe there was no air left in the tire first.

Sounds to me like a bunch of incompetent clowns did your tires. Wow, just wow.

If the valve stems break off, it's a pretty good guess that there won't be much air in the tires quite soon thereafter. Logically it would seem that the tire unseating itself is a result of the valve stem failure, which itself could be due to an inappropriate valve stem or inappropriately heavy attachment (an extension?) put on it.

[Bruce_Brown]

If the bead wasn't seated that would lead me to believe there was no air left in the tire first.

Sounds to me like a bunch of incompetent clowns did your tires. Wow, just wow.

[Octaneforce]

wolfe10 wrote:
Or that the tire bead broke loose from the rim???

The old fill valves looked like gold/brass color. By debeaded i mean the tire was not "stuck" to the rim anymore. I didnt see any balancing beads. I dont even know if they are actually in there. The balancing beads brand they claimed to have used were equal brand bags.

[wolfe10]

Or that the tire bead broke loose from the rim???

[Gjac]

Octaneforce wrote:
Left for a trip last night. The coach is tolerable. It doesnt shake much once i set the cruise control at a reasonable speed. It felt a little strange about 200 miles in. Stopped for a break and realized BOTH inner rear tires debeaded. DAMNIT. Im at a truck shop now having it looked at. Appears the filler valves broke off. Not really sure how or when that happened. I cant win with this thing.

What color was your filler valves that broke off? By "debeaded" do you mean the beads came out the broken valve stems?

[DFord]

lawjohnson wrote:
I had a car that was like that. New tires and it shook. Back to the tire store for a re-balance... same thing. Was told it was not the tires must be something else. I asked why it did not have the problem before and they just looked at me. Took it of all places to Walmart since I had to do a bunch of shopping anyway, an hour later... no shake! Went back to the folks I bought the tires from and they STILL insisted that it was the car, not their equipment!
Just food for thought.

My experience with Wal-Mart was the complete opposite. Bought new tires for my car from them and it shook as soon as I got over 45mph. Let it set in the drive for awhile and found a weight laying on the driveway the next day. Took it back and they re-balanced the tires. Same result. Unnecessary shake at highway speeds. Found a shop near me with the Hunter Road Force machine and took it there to have them re-balanced again. As soon as got on the highway I could feel the difference - perfect! I'll never buy another tire from Wal-Mart. I'm sold on Tire-Rack who delivers tires to the shop with the Road Force balancer, he calls me to let me know they're in and schedule an appointment. Love the service there.

[lawjohnson]

I had a car that was like that. New tires and it shook. Back to the tire store for a re-balance... same thing. Was told it was not the tires must be something else. I asked why it did not have the problem before and they just looked at me. Took it of all places to Walmart since I had to do a bunch of shopping anyway, an hour later... no shake! Went back to the folks I bought the tires from and they STILL insisted that it was the car, not their equipment!
Just food for thought.

[BrianinMichigan]

Had the same thing happen on the last set of tires. Took it back the next week. After some himmim and hawing they admitted they bent one of the rims. They replaced it and it fixed the problem.

[DFord]

I don't think I'd want to use that shop that sold and mounted your tires. Care to share the name of that place?

[Octaneforce]

Left for a trip last night. The coach is tolerable. It doesnt shake much once i set the cruise control at a reasonable speed. It felt a little strange about 200 miles in. Stopped for a break and realized BOTH inner rear tires debeaded. DAMNIT. Im at a truck shop now having it looked at. Appears the filler valves broke off. Not really sure how or when that happened. I cant win with this thing.

[Bruce_Brown]

Octaneforce wrote:

Bruce Brown wrote:

camperdave wrote:
maybe they left the beads in the bag? :B

Believe it or not thats how they're supposed to do it. Drop in the number of bags required, they break open when you head down the road.

In ours they've worked well.

I think the bag is part of the problem. One guy on youtube dismounts a tire that had beads for a short amount of time. He rolls the unmounted tire on the the ground and you can see the bag get all caught up and create clumps of beads.

https://youtu.be/ZxTzXDL80mI

It might depend on what brand of beads were used. The bag should disintegrate and be a non-issue. If it's clumping up I'm guessing there is either moisture or possibly tire lube involved. The ones in our tires are moisture resistant and the bags haven't been an issue. And nope, I don't remember what brand they are, sorry.

We're currently camping, 600 miles of smooth and easy travel.

[Bruce_Brown]

Maybe Centramatic rings, but not Road Force balance.

Balance them now with the beads in X location within the tire.

Drive 20 feet and the beads are now in a different spot. If you want to do a Road Force balance the beads gotta go.

[Octaneforce]

Bruce Brown wrote:

Octaneforce wrote:


So the question now is, can i have these tires road force balanced with the beads still in the tire? Or does the tire have to come off and get cleaned out? Really amazing help from everyone here! I needed this

It sounds like you might be on to something.

With that said, if you want to balance them another way, the beads need to come out. The only way to do that is remove the tire.

I cant have beads in the tires along with centramatic rings? I dont see why not. I feel like they would work together and allow for the ability to correct huge imbalances. Or at the very least, one would correct the other. However this is total bro science and i could be wrong.

[Octaneforce]

Bruce Brown wrote:

camperdave wrote:
maybe they left the beads in the bag? :B

Believe it or not thats how they're supposed to do it. Drop in the number of bags required, they break open when you head down the road.

In ours they've worked well.

I think the bag is part of the problem. One guy on youtube dismounts a tire that had beads for a short amount of time. He rolls the unmounted tire on the the ground and you can see the bag get all caught up and create clumps of beads.

https://youtu.be/ZxTzXDL80mI