FKING1

Left front original PSS has chunks of soft rubber all around the tire.
Any one had this?
Thanks

Walt White Coupe

This usually happens on a race track when the tire is very hot and you run over shedded soft rubber pieces (marbles) from other soft racing tires that accumulate off the racing line.

TEXHAWK0

Are you sure it is rubber, or is it just asphalt from a freshly paved road surface?
The city put down sealer and small rocks on my street, and I am still collecting them on my tire a year later.

ExRedRacer

Exactly.

I took my little blue Vette to the track last Thursday and came away with that on my tires. I'm hoping it wears away eventually because right now, it's a pebble/stone magnet, so to speak.

Anybody ever bother scraping it all away?

\Boost Monkey/

This.


If you have been on a track, you likely scooped up some rubber dingleberries.

dbaker

Yep,marbles.

Usually can be scraped off with a putty knife or easier,In a parking lot or non busy street,quickly swerving back-and-forth (scrubing) at low speed should help.

I'm sure you've seen racers on tv do this before a restart on old tires.

\db2

CP

Graduate of the Utah School of Picture-Taking.

Hopper12

^^^^ Sorry, lost at least me on that one. Probably for the best though.............

OP: if you were on a track: normal. I crewed for Stavola Bros. in Winston Cup and our tires often looked like that - which is why you see them swerving back/forth when about to go green again. Putting heat in the tire but also trying to get rid of soft tire rubbish. If you weren't on a track: I've had this happen one time, when I went thru a parking lot where they had recently filled the pavement cracks. They let cars in too soon and the stuff stuck to several tires - a real pain to clean off.

FKING1

Just ran Owosso 3/8 mile paved oval Sat & Sun. 14 runs each day, 2 laps per run.
This is where tire picked up the chunks. Puzzled why only left front and why they did not wear off on 60 mile trip home.
.Thanks for the intelligent replies.

Richard Ames

At Ron Fellows you could hear the chunks hitting the wheel wells especially in the AM. You are driving your car the fun way. They get about a thousand miles out of a set of tires.

L82Brake

They stay on there surprisingly long! A few burnouts will clean off the back tires.

EdsC6Z06

My racing slicks are covered with the rubber snot! Going to try to heat and scrape away the bigger hunks before next time out. They can be tough to remove just by driving/swerving.

ExRedRacer

So what's the best/quickest/safest way to remove the stuck-on goop?

\Boost Monkey/

Why only on the drivers side?

I would guess because you were on an oval track making a never ending left turn, meaning much more stresses on the inside tires which would result in more tire shedding on the inside of the track, thus more dingleberries for you to pick up on the inside.

And they take much longer than 60 miles to wear off. They are melted to your tread more or less, you have to wear them off.

Bill Dearborn

Two reasons:
First, on the highway the tires didn't get hot enough. They really don't get hot unless you are running over 100 or pushing hard in corners where they are being worked to the full extent of their grip.

Second, on the highway you weren't generating enough of a slip angle to scrub the rubber off. Got to drive that car hard but as soon as you slow down you will pick up OPR. Since you were running on a 3/8 mile speedway you were also running on some really soft rubber that came off either late model or modified race slicks. You can sometimes pick that stuff up on your shoes just walking across the track.

Bill

Walt White Coupe

Not saying I recommend this but I've seen people burn them off with a propane torch and a putty knife.

ExRedRacer

I tried the putty knife just a few minutes ago...got quite a bit off.

Or maybe I'll just leave the rest of the stuff on there. Going out again in a couple of weeks.

JerryU

Funny, at the end of an F1 race, the top drivers always run out of the groove to the track edges picking up shredded rubber (marbles) on their hot tires! They do that to add weight for insurance in meeting the required minimum at weight-in!

At the Darlington NASCAR track had 30 seats that were low in the stands at the end of one of the turns and would bring customers to the races. Had them even prior to the switch to radial tires (more fun to watch at that time, IMO.) When the cars all came in for new rubber and came sliding around the turn by our seats for the first time, we were showered with shredded rubber!

Hopper12

When crewing in Winston Cup, if we had a set of tires that were replaced shortly after a stop due to another caution, we'd prep them just in case we needed to use them again before the end of the race (you only got a certain number of tire sets per race/track. You could get other sticker tires from another team if they wrecked out and they were teammates or 'friends', but we often kept a set or two of used prepped tires on the longer races). We used a high power heat gun and heavy putty knife. Worked great, but there were no tread groves either. I believe this would work well on street tires, but you'd need to heat up the tread groves and use the putty knife sideways to get the junk out of the groves.

madrob2020

Some smart phones are smarter than owners. I get it! OP please don't take offense but some of the pics on the forums are like a 3rd grader took them (out of focus). Still we could "see" the crud ok.