Go Back   EcoModder Forum > Off-Topic > The Lounge
Register Now
 Register Now
 


Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 04-12-2021, 04:44 PM   #31 (permalink)
JSH
AKA - Jason
 
JSH's Avatar
 
Join Date: May 2009
Location: PDX
Posts: 3,599

Adventure Seeker - '04 Chevy Astro - Campervan
90 day: 17.3 mpg (US)
Thanks: 325
Thanked 2,146 Times in 1,453 Posts
Quote:
Originally Posted by cRiPpLe_rOoStEr View Post
Worse than retreadings are the regroovings I often see in Brazil.
I used to work with a guy that previously worked for Michelin for more than a decade working on commercial tires. According to him a commercial tire can be used 9 times:

1. The original tread
2. Face on a lathe and groove
3. Face on a lathe and groove
4. 1st Retread
5. Face on a lathe and groove
6. Face on a lathe and groove
7. 2nd Retread
8. Face on a lathe and groove
9. Face on a lathe and groove

For each regroove or retread a mark is burned on the side of the tire. According to him retreads aren't a problem if they are done right. They fail for the same reason that original tires fail - overheating due to underinflation.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 04-12-2021, 05:01 PM   #32 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 12,743

Acura TSX - '06 Acura TSX
90 day: 24.19 mpg (US)

Lafawnda - CBR600 - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - Dodge/Cummins - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)

Model Y - '24 Tesla Y LR AWD

Pacifica Hybrid - '21 Chrysler Pacifica Hybrid
90 day: 85.85 mpg (US)
Thanks: 4,316
Thanked 4,471 Times in 3,436 Posts
Quote:
Originally Posted by JSH View Post
I used to work with a guy that previously worked for Michelin for more than a decade working on commercial tires. According to him a commercial tire can be used 9 times:

1. The original tread
2. Face on a lathe and groove
3. Face on a lathe and groove
4. 1st Retread
5. Face on a lathe and groove
6. Face on a lathe and groove
7. 2nd Retread
8. Face on a lathe and groove
9. Face on a lathe and groove

For each regroove or retread a mark is burned on the side of the tire. According to him retreads aren't a problem if they are done right. They fail for the same reason that original tires fail - overheating due to underinflation.
Except prime tires don't puke up their tread when they overheat...

Seems dangerous and common enough that retreads come apart that there should be pressure and temperature monitoring on them. Makes no sense to have pressure monitoring on passenger cars because they only have 4 wheels, and it's plainly obvious when the tires are dangerously low due to handling differences.

Just yesterday a guy had pulled halfway onto the shoulder and stopped on a country road (55 MPH limit). I was angry that he was backing up traffic and creating a dangerous situation, but then realized he was pulling half a tire carcass off the road, which if hit, would have caused major damage for most passenger cars.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Old 04-12-2021, 07:54 PM   #33 (permalink)
JSH
AKA - Jason
 
JSH's Avatar
 
Join Date: May 2009
Location: PDX
Posts: 3,599

Adventure Seeker - '04 Chevy Astro - Campervan
90 day: 17.3 mpg (US)
Thanks: 325
Thanked 2,146 Times in 1,453 Posts
Quote:
Originally Posted by redpoint5 View Post
Except prime tires don't puke up their tread when they overheat...
They still come apart - just in smaller pieces.



Quote:
Originally Posted by redpoint5 View Post
Seems dangerous and common enough that retreads come apart that there should be pressure and temperature monitoring on them. Makes no sense to have pressure monitoring on passenger cars because they only have 4 wheels, and it's plainly obvious when the tires are dangerously low due to handling differences.
The EU agrees with you. TPMS will be mandatory for commercial vehicles in 2022.

There is nothing on the horizon here in the USA but TPMS systems are a pretty common option for large fleets. Tires are expensive - TPMS is cheap. Even aftermarket TPMS is only about $1000. Having a service truck come out to change a one tire on the side of the road can cost that much.

ATIS is also popular (Automatic Tire Inflation System). ATIS has the advantage because slow leaks are continually topped off by the truck's air system so you have longer to make it to a service center for the tire to be fixed.

  Reply With Quote
The Following 2 Users Say Thank You to JSH For This Useful Post:
redpoint5 (04-13-2021), Xist (04-12-2021)
Old 04-12-2021, 09:35 PM   #34 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,873
Thanks: 0
Thanked 1,683 Times in 1,501 Posts
ATIS is quite widespread in Brazil for heavy-duty commercial vehicles, yet it's often fitted in a different way with some pipes hanging more visibly on the outside. It's easier to notice on the front axles of the trucks in these pictures.




Quote:
Originally Posted by JSH View Post
I used to work with a guy that previously worked for Michelin for more than a decade working on commercial tires. According to him a commercial tire can be used 9 times:

1. The original tread
2. Face on a lathe and groove
3. Face on a lathe and groove
4. 1st Retread
5. Face on a lathe and groove
6. Face on a lathe and groove
7. 2nd Retread
8. Face on a lathe and groove
9. Face on a lathe and groove
But these tyres are regroovable as a design feature, while for tyres meant to light-duty vehicles it's not the case. Yet it's quite a common practice. A friend who opened a tyre shop after we finished high-school told me it was widely sought after.


Quote:
For each regroove or retread a mark is burned on the side of the tire.
I'm sure most tyre repairers in my country "forget" this procedure.
  Reply With Quote
Old 04-12-2021, 11:22 PM   #35 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,230

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 34.2 mpg (US)

Gramps - '04 Toyota Camry LE
90 day: 35.39 mpg (US)

Don't hit me bro - '05 Toyota Camry LE
90 day: 30.49 mpg (US)
Thanks: 7,254
Thanked 2,229 Times in 1,719 Posts
Quote:
Originally Posted by JSH View Post
ATIS is also popular (Automatic Tire Inflation System). ATIS has the advantage because slow leaks are continually topped off by the truck's air system so you have longer to make it to a service center for the tire to be fixed.

Hey guys! Have I ever told you about the M1083?! It has something like that!

Remember my thread about how long it would take to replace my heater core? I mentioned it should have been called "How long will it take me to start?"

I completed it, but needed to redo it, and I don't even know how long it has been.

I keep working on other projects.

Until I got a girlfriend in the Phoenix area I bought gas every two months. My MPG is lower than ever (barely above the EPA estimate for mixed driving), but I have never spent less!

The guy who sold me the Civic bragged that he got 13 MPG. So, there are those idiots, but humans can become accustomed to almost anything, including paying far too much gas money.

Metro, you aren't offended that RedPoint protests dependence on Canadian oil?

I hear that he has a vendetta against maple syrup, too!

Oh yeah...
Quote:
Originally Posted by freebeard View Post
The point?
__________________
"Oh if you use math, reason, and logic you will be hated."--OilPan4
  Reply With Quote
Old 04-13-2021, 12:01 AM   #36 (permalink)
home of the odd vehicles
 
rmay635703's Avatar
 
Join Date: Jun 2008
Location: Somewhere in WI
Posts: 3,891

Silver - '10 Chevy Cobalt XFE
Thanks: 506
Thanked 867 Times in 654 Posts
CTIS has been a military option since the 1970’s
Used to be standard on old split rims right alongside LH/RH directional lug nuts.

Works well on the 16r20 and 20r20 MXV Supersingles


There is also central lube grease options, good lord are those irritating to setup.
  Reply With Quote
Old 04-13-2021, 12:16 AM   #37 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,230

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 34.2 mpg (US)

Gramps - '04 Toyota Camry LE
90 day: 35.39 mpg (US)

Don't hit me bro - '05 Toyota Camry LE
90 day: 30.49 mpg (US)
Thanks: 7,254
Thanked 2,229 Times in 1,719 Posts
Was that on Caterpillar's M520 Goer?
__________________
"Oh if you use math, reason, and logic you will be hated."--OilPan4
  Reply With Quote
Old 04-13-2021, 01:51 AM   #38 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,527
Thanks: 8,077
Thanked 8,871 Times in 7,323 Posts
Quote:
Quote:
Originally Posted by Frank Lee
Using a proven liar to make a point- what am I missing here?
The point?
Are you saying I was wrong to ask the question, or do you just like reposting redneck's memery?

__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
  Reply With Quote
Reply  Post New Thread






Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com