front tires worn to $h!t on rwd!?

On my way to the rallycross today i hear my tires start an un-usual howl a few miles away from my desination. Figured it was just a change in surface/pavement/concrete. :shrug:

so after my oil filter blows off during the first practice and i get 5 brand new quarts of oil all over the passenger side wheel well and such i get a new filter that fits 'properly' and new oil... do my runs. everything is 'fine'... i mean i sucked so it's fine right? lol

now on my way home i aired up to 45 psi, as soon as i hit pavment, my tires are howling.. like a lot? i pulled off into a bus zone thingy to check em, and they're not low or anything... but holy crap the entire way from the fairgrounds in hillsboro to my place in salem they were just howling. ya know like when u take corners too fast and loose traction howling.. ya.. i pull into the garage and WHOA!!!! they're purdy flippin torn up now! like i lost a ton of tread!

take the wheels off and see all the oil EVERYWHERE in the pass wheel well, wheel, brake system, so im gonna work on cleaning it up right now... but i don't get why they're so torn up?

sorry, im no mechanic. but couldnt this maybe be an alignment issue? what would you guys guess




Edited 2 time(s). Last edit at 06/26/2010 09:07PM by WorldHazard.

Is it both tires? Or just the passenger one? If its just the one, maybe the oil softened the rubber to the point that the heat build up from "prolonged" highway driving worn it down?

---

Welcome to the cult of JVL drink the koolaid or be banned.

it was both.. i thought maybe the oil affected it, but they both are pretty messed up. i guess it could very well be they just got worn out naturally. im just use to street tires and not this kinda tread. the alignment looks fine eyeballing it, and its even wear throughout the contact surface too.

edit: but would BF Goodrich AT's really howl like that when balding?



Edited 1 time(s). Last edit at 06/26/2010 10:36PM by WorldHazard.

Possibly an alignment issue.

heymagic Wrote:
-------------------------------------------------------
> Possibly an alignment issue.

Oil softened them then unusual sun-spot activity coupled with a full moon with a partial eclipse lat night after midnight---was at the machine shop till 12, so I saw just the beginning...

It couldn't be alignment, he said he eyeballed it.

---

John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.

ya... i thought about that after i left... eyeballing an alignment.. w/e.. would the oil have any effect on it?

just finished with cleanup for the night, and after rotating tires i do see a difference between the pass vs the drivers.. passenger is worn down more... kinda lame as i was gonna swap over my spares, but AGAIN.... my lugnuts are too fat for the wheels...

any recommendation around pdx and the couv for a machine shop to enlarge the holes?

john vanlandingham Wrote:
-------------------------------------------------------
> heymagic Wrote:
> --------------------------------------------------
> -----
> > Possibly an alignment issue.
>
> Oil softened them then unusual sun-spot activity
> coupled with a full moon with a partial eclipse
> lat night after midnight---was at the machine shop
> till 12, so I saw just the beginning...
>
> It couldn't be alignment, he said he eyeballed
> it.
>
>
>
>
> John Vanlandingham
> Sleezattle, WA, USA
>
> Vive le Prole-le-ralliat
>
> www.rallyrace.net/jvab
> CALL +1 206 431-9696
> Remember! Pacific Standard Time
> is 3 hours behind Eastern Standard Time.

I didn't know about the partial eclipse..pretty obvious then.

it was a pretty gnarly drive home. i see the outter half of each tire is worn.. passenger side has some wire, while drivers side has a bubble... f%&$-an-a

Did you string line your alignment before you drove it??

---

SteveL
This is the point in the killing spree when you really should turn the gun on yourself

SteveL Wrote:
-------------------------------------------------------
> Did you string line your alignment before you
> drove it??
>
>
>
> SteveL
> “This is the point in the killing spree when you
> really should turn the gun on yourself…”

no i didn't. didn't feel it necessary at the time. BEFORE i left at least. as i drive the truck occasionally i never noticed anything out of the ordinary.

i plan on gettin an alignment done now though.

how often does a rally car want an alignment? more/less after every stage event? (if i can afford it, SURE!)

WorldHazard Wrote:
> how often does a rally car want an alignment?
> more/less after every stage event? (if i can
> afford it, SURE!)

For the top teams... the alignment will get checked against a string at every service.

---

First Rally: 2001
Driver (7), Co-Driver (44)
Drivers (16)
Clerk (10), Official (7), Volunteer (4)
Cars Built (1), Engines Built (0) Cages Built (0)
Last Updated, January 4, 2015

Quote
john vanlandingham
Blame is for idiots. losers.

ok, well that's that exactly? taking a wally world ball of yarn from one of the wheel to another?

Hmmm,
I drove a car w/ 1.5" toe-in and never heard them.
you have 3"+ ??

Get an accomplice and a tape measure.
Have the dumber one stick the tang into a tread
groove on the forward edge of one of the front tires.
Have the smarter one look under to see the tape isn't hitting stuff and then read the result on a groove on the other tire.
Do the same thing on the back edge in the same grooves
(this is important).
Compute the difference.
This will work fine for what you need to know now.
You are looking for +/- 1/4" difference
in the two measurements.

If you have a large amount of camber,
the two measurement heights need to be equal
ie: 3" from the ground, front and back/both sides

Once you do this, see why.
Something is broken
or re-installed badly.

While at a road race this weekend, I learned how to set toe using the string system. Super easy and fast to do! All I needed was two wrenches, some string, and a bungee chord.

You can also get all fancy and use a jack with some string tied to it.

Anders

---

Grassroots rally. It's what I think about.