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I have noticed smoke coming from my left rear wheel arch. It smells of rubber, so I have ruled out oil. I believe it comes when I accelerate hard in first and my tires spin, heating the tire to make it smoke. I use P Rosso's (285/30/18)
I have not noticed it if you drive on the highway. Took the wheel off and inspected for any rubbing, and found no evidence. I do notice a smell of hot rubber if the car has been driven hard or idling in traffic for long (oil temp at 40%)
Is my diagnosis correct? Is there something made of rubber that could do this? (I have not inspected the heater ducts)
I would check for any foreign -material- slung onto the muffler. I dont feel that the relatively small wheelspin any 993 can exhibit will be enough for you to smell burning rubber, much less after you have stopped for inspection..
Will do. However, I have seen strips of about 20mt (accelerating off a side street while turning left). Its more of a rash than a streak, were the tire was slipping slightly, rather than uncontrolled off the line drag type spin. My 993 has LSD, too.
I am almost certain that it's a lower valve cover leak. Ask me how I know. People on the strip in Las Vegas looked at the car pretty funny when I was slowly rolling by with smoke coming out of both arches.
I am almost certain that it's a lower valve cover leak. Ask me how I know. People on the strip in Las Vegas looked at the car pretty funny when I was slowly rolling by with smoke coming out of both arches.
Yep... Seen that movie too. People thinking to themselves.... "That Porsh is a piece of junk that smokes".
So, this is a narrow body C2 and if this correct I thought the right size tire is 265/30/18s. The odd thing is the smoke is coming from only one side...umh... when I wanted to go with 18s and I have C4 I was told I could not go with 285, as they were just too big for a smaller ***....
HKG36C - You can go up to 305s with the right offset; my cab is running 285s on 11" rims with fenders rolled and there is a wee bit more room for wider tires.
I hear you. Will inspect valve covers. But...
I can recognize the smell of oil smoke...and the one coming from th ewheel arch is clearly rubber. I also thought it was the tire rubbing against something, but could not find any erosion marks on the fender.
I hear you. Will inspect valve covers. But...
I can recognize the smell of oil smoke...and the one coming from th ewheel arch is clearly rubber. I also thought it was the tire rubbing against something, but could not find any erosion marks on the fender.
There is a difference between the smell of oil that is dripping onto a hot muffler and oil that is seeping past your valves and seals, being burned off in the combusion chamber and then blown out through your mufflers.
Will check. But burnt rubber smalls like burnt rubber. I have a stage 3 Dyna (HD) and I know what Mobil 1 smells over hot exhaust (even though my self hand-assembled twin cam engine uses almost no oil...ejem...)
i'm with you man. i have the same smell- but it is at it worst when the winter tires and wheels are mounted, oddly (18" sport design w/dunlop ws3). i'd love to figure this one out. it doesn't seem to be affecting performance of the car what-so-ever though.
Agree with the valve cover leak. It is the most likely...besides is easy enough to check, if you don't have the engine cover on, that is (which you shouldn't).
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