997 gts clunk on full lock
997 gts clunk on full lock
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Discussion

joinery80

Original Poster:

544 posts

153 months

Tuesday 31st January 2017
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Is this normal happens when I pull of the drive.i am sure my old c4s used to do this too

AndyCGTS

589 posts

234 months

Tuesday 31st January 2017
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My 981 GTS does this, which is due to the tires and a phenomenon called the ackerman effect.

chrisABP

1,117 posts

179 months

Tuesday 31st January 2017
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My 997 GTS also made a noise at low parking speeds when on full lock, got the geometry checked and it still did it but less so. Sounds like the tyre scrubbing across the surface and I believe it effects a lot of Porsche and is down to the Ackerman effect.

Digga

48,586 posts

314 months

Tuesday 31st January 2017
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Tyre scurbbing certainly is a feature on 911s, but it may also be a sign of very minor wear on track rod ends or even strut top-mounts or bearings. The top mounts can be in a pretty poor state without exhibiting many symptoms, other than in extremes - i.e. full lock or very hard (track) braking.

joinery80

Original Poster:

544 posts

153 months

Tuesday 31st January 2017
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Thanks guys thought is was nothing to worry about

SFO

5,191 posts

214 months

Tuesday 31st January 2017
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more of an issue in really cold weather

WizzBang

297 posts

137 months

Tuesday 31st January 2017
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My 991 did this until last week.
Then fitted winter tyres and now scrubbing/clunking has gone.

Slippydiff

16,494 posts

254 months