What causes a tire to rub against the well on sharp turns? - Mercedes-Benz Forum
Reply
 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 07-26-2009, 07:08 AM
BenzWorld Member
 
Date registered: May 2009
Vehicle: 1981 380SL
Location: Baltimore
Posts: 66
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
What causes a tire to rub against the well on sharp turns?

We have a minor issue of one or both of the front tires rubbing against the well on really sharp turns (u-turns) we try not to turn the wheel all of the way to avoid it. I am planning on getting the suspension redone when i save up the cash to get it all done at once but I am just curious what is the typical cause of this

Thanks
schlitz100 is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 07-26-2009, 07:19 AM
BenzWorld Elite
 
jplinville's Avatar
 
Date registered: Sep 2008
Vehicle: 1987 560SL
Location: Tarentum, PA
Posts: 3,484
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via AIM to jplinville
Do you have the stock rims as well as the stock tire size?

Are you running aftermarket rims with improper backspacing?

Are your tires bigger than recommended?

I'm not a real dickhead...but I acted like one in high school.
jplinville is offline  
#3 (permalink) Old 07-26-2009, 07:25 AM
BenzWorld Member
 
Date registered: May 2009
Vehicle: 1981 380SL
Location: Baltimore
Posts: 66
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
no i got stock bundts on. tire size not sure of will check.

there is a bit of play in my steering wheel may have a tie rod issue.

Last edited by schlitz100; 07-26-2009 at 07:31 AM.
schlitz100 is offline  
#4 (permalink) Old 07-26-2009, 08:16 AM
Lifetime Premium Member
 
ScottinSoCal's Avatar
 
Date registered: Aug 2006
Vehicle: 78 450SL, 94 BMW 325i, 03 Toyota RAV4
Location: Southern California
Posts: 6,046
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Lifetime Premium Member
Worn springs can cause the car to ride lower then normal, causing that. Badly out of alignment can cause it. Badly worn bushings can cause it.

Where does it rub? And is it only when you turn one way, or does it happen turning either way?


When I die, I want to go quietly in my sleep, like Grandpa.
Not screaming, like the people in his car.



Juvenis quod fanaticus nunquam concilio usus quod proditus
ScottinSoCal is offline  
#5 (permalink) Old 07-26-2009, 08:32 AM
Lifetime Premium Member
 
Aero I's Avatar
 
Date registered: Sep 2008
Vehicle: 99 SL Sport /Pano; 94 E420; 92 300CE; 88 560SL - In transit; 81 380SL- for sale; 73 450SLC (RIP)
Location: Upstate NY
Posts: 1,346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Lifetime Premium Member
Compare Stock Spec with actual

[QUOTE=schlitz100;3611608]

no i got stock bundts on. tire size not sure of will check.

QUOTE]

The Wheel & tire sizes for a stock 380SL are

14x6.5 30 205/70R14 which means the wheels are 14" diameter, 6.5" width and have an offset of 30mm. If yours are indeed stock, this is what they are.

The tire size noted above is designed to work well with this suspension and fit in the wheel wells nicely. If you put larger tires on those rims, they can rub, both front and rear.

On my recently purchased 380SL the Previous Owner had 245/70R14's up front and 225/70R14's in the back on stock rims.

I think the PO wanted the staggered look and probably found out too late that the 245's wouldn't even fit in back, for they ended up in front, at least your could drive the car, and of course it looked weird with these huge gummy tires. All 4 tires rubbed on moderate bumps and the fronts rubbed on minor bumps when turning.

The simple solution was to just install 205/70's on the stock rims, but since I wasn't keen on them anyway, I installed 3rd party 15" rims with 205/65's which match exactly the outer dimentions of stock 14"wheels and tires.

There is a size envelope inside the wheel wells you need to stay within on these cars in particular, or your will be rubbing.

Try this website

Wheel / tire size calculator / comparer - BIGCUSTOMWHEELS

On the left side you plug in the OEM spec's I've given above, on the right you can plug in any combination of wheel and tire sizes until you get the new one to match the 14" ers closely, then scroll down and you will see an analysis of you new size as compaed to OEM, it will tell you if the new combination will fit or not.

If you are going to keep the 14" bunhts, and the tire sizes are bigger than 205/70, just put on stock tires and your fine.

If you already have stock tires, then you have a problem I haven't seen before in the forums. I'd bet your tires are oversized on first guess.

Attached are a couple of pictures, my SL with oversized tires on bunhts as purchased, then same car with 15"wheels and tires that match the orginal design outer deminsions. Personal opinion only, but oversized tires don't work well visually as they do on other cars.
Attached Thumbnails
Click image for larger version

Name:	DAS 2 crop.jpg
Views:	84
Size:	109.1 KB
ID:	251243   Click image for larger version

Name:	BD14.jpg
Views:	134
Size:	115.4 KB
ID:	251244  
Aero I is offline  
#6 (permalink) Old 07-26-2009, 09:16 AM
BenzWorld Member
 
Date registered: May 2009
Vehicle: 1981 380SL
Location: Baltimore
Posts: 66
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
My tires don't seem as big as in your first pic. I'm stuck at work at the moment or i'd check.

SoCal. Not sure where exactly it's rubbing as I said after the first few times we try not to turn the steering wheel all the way when doing u turns etc. I don't see evidence on the tires where it's rubbing but the dealership told me they noticed uneven tire wear but had no more information for clarification. It's not often I make right turns that tight so I'm not sure if it happens turning right. If i remember correctly the sound seems to come from the left front wheel and not the right but I may be wrong.

Hopefully I'll have the cash to get the suspension redone in the next few months... using this thread as a guide. i guess then i'll know what's going on.

http://www.benzworld.org/forums/r-c1...-what-its.html
Attached Thumbnails
Click image for larger version

Name:	DSC01881.JPG
Views:	65
Size:	55.8 KB
ID:	251248  
schlitz100 is offline  
#7 (permalink) Old 07-26-2009, 10:02 AM
BenzWorld Elite
 
abiby's Avatar
 
Date registered: Jul 2008
Vehicle: 82 380SL 96 SL500
Location: Southern Illinois
Posts: 5,247
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
That post enlightens things a bit. You may or may not be rubbing.

Assuming he didn't say rubbing, the uneven tire wear noted by the dealer is almost assuredly related to either suspension wear, simple allignment or issues in the tire itself. Likewise, the noise you hear could be coming from other sources, such as brakes or bearings.

To be sure about the rubbing, do a couple of sharp turns and then eyeball the tires. If they are truely rubbing, you will be able to see fresh marks on the tire.

That said, don't discount the need for suspension/allignment work needed.

Alan
If it doesn't fit, force it.
If it breaks, it needed replacing anyhow.
abiby is offline  
#8 (permalink) Old 07-26-2009, 10:39 AM
BenzWorld Member
 
Date registered: May 2009
Vehicle: 1981 380SL
Location: Baltimore
Posts: 66
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
will i need to get new tires when the suspension get done?
schlitz100 is offline  
#9 (permalink) Old 07-26-2009, 12:03 PM
BenzWorld Elite
 
strife2's Avatar
 
Date registered: Jul 2004
Vehicle: 560SL,380SL
Location: KY
Posts: 3,894
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
With stock wheels, it seems to me that there should be a lot of room in the wheel well, UNLESS there is a pretty serious (and fairly obvious to a mechanic) suspension issue or issues, such as:

1. Bad or missing spring rubber mounts (Above the springs)
2. Ball joints (upper or lower)
3. Lower control arm bushings
4. Idler/track rod/tie rod VERY loose

I would NOT ignore this.

How high is the top of your front fender well lip to the ground?

I myself just had a BAD and SUDDEN "rubbing" issue in the back, which was caused by bad torsion bar links - one was completely disintegrated, and one was about ready to let go - it fell apart in my hands upon removal.

_________________________

Homebrew MB First Gear Start!

http://juliepalooza.8m.com/sl/mercedes.htm

_________________________
strife2 is offline  
#10 (permalink) Old 07-26-2009, 01:37 PM
BenzWorld Member
 
Date registered: May 2009
Vehicle: 1981 380SL
Location: Baltimore
Posts: 66
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
I had the car inspected at a dealership soon after buying it and except for the uneven tire wear they didn't note anything else regarding the tires or suspension. I don't know how thoroughly they looked at the suspension but I assume if something obvious was wrong they would of seen it.

But I will take the advice of the board and try expedite getting the suspension redone or at least looked at when I take it down this week. I'm about to get the timing chain, guides, tensioners, cam oilers plus a few other odds and ends and my current car funds will be mostly depleted when it's all said and done.

The car seems to drive pretty smoothly but as it's the only 107 i have driven I can't compare it to anything. It does have a bit too much play in the wheel and seems to lean a bit much on sharp curves. But again I don't know what is normal and the more i drive it I get used to it.
schlitz100 is offline  
Reply

  Mercedes-Benz Forum > Mercedes-Benz Roadster Forums > R/C107 SL/SLC Class


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Topic Author Forum Replies Last Post
Knocking during sharp turns (sometimes). mpsmith W220 S-Class 22 10-19-2009 09:13 AM
Tire Rub rgoode G-Class 5 05-15-2009 04:14 AM
Noise on Sharp Turns : Please Help lahsrah W124 E,CE,D,TD Class 0 04-09-2009 06:25 PM
Tire scraping noise on sharp turns gum946 W211 E-Class 5 06-29-2007 12:46 PM
Tire Rub RogerG W210 E-Class 1 07-07-2004 07:27 AM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome