Dull Thumping from Tyre / Wheel

SiRS2000 · Oct 8th, 2012, 19:53

I swapped my wheels round yesterday Fronts to rear, Rear to Front which is something I have always done periodically to spread the wear.

My dilemma is that I can now hear a dull thumping that gets quicker the faster you go, The car Corners & Brakes fine it also does not wander to suggest that the tracking is out and the tyre ware on the original fronts was even. I have never skidded to a halt with these tyres so there are no obvious flat spots.

Any suggestions would be welcome.

marct1980 · Oct 8th, 2012, 19:57

start with the obvious, i did this to a lupo gti once! swapped the wheels and knocking started turned out that one or more of the bolts were loose and they warped the hole turning it egg shaped very quickly. wrecked the alloy !! i dont know how many people looked at it before we realised what had happened!

SiRS2000 · Oct 8th, 2012, 20:04

I torqued all the Nuts up but always worth a second check.

marct1980 · Oct 8th, 2012, 20:11

Quote:

Originally Posted by SiRS2000

I torqued all the Nuts up but always worth a second check.

Defo worth a second check remember to check the seating of them too I think that was what happened with mine i put the wheel on a little squint tightened everything up and then the wheel slipped round that little bit making everything loose!

SiRS2000 · Oct 8th, 2012, 20:42

Quote:

Originally Posted by SiRS2000

I torqued all the Nuts up but always worth a second check.

Quote:

Originally Posted by marct1980

Defo worth a second check remember to check the seating of them too I think that was what happened with mine i put the wheel on a little squint tightened everything up and then the wheel slipped round that little bit making everything loose!

I have just been outside and the front driver’s side nuts were fractionally looser than they should have been, I took 3 nuts off and no damage to the nut / bolt seats 1st time I have ever had that happen so hopefully this is all it was.

Torque wrench in the car for tomorrow just in case.

marct1980 · Oct 8th, 2012, 20:53

good luck let us know if it stops tomorrow!

Ninja59 · Oct 8th, 2012, 21:10

heard this before from other volvo p1 owners mainly in the US, the p1 platform rears have a slight camber (on the c30 at least) resulting in it riding slightly more on the inner side this could be your issue.

check tyre pressures to...i run mine at 38 psi now.

colinjy · Oct 9th, 2012, 09:57

could be a flat spot in the tyre that was on the back.

SiRS2000 · Oct 9th, 2012, 20:48

Quote:

Originally Posted by marct1980

good luck let us know if it stops tomorrow!

Well the thumping / rumbeling is still there.

Quote:

Originally Posted by Ninja59

heard this before from other volvo p1 owners mainly in the US, the p1 platform rears have a slight camber (on the c30 at least) resulting in it riding slightly more on the inner side this could be your issue.

check tyre pressures to...i run mine at 38 psi now.

I have had a poke around on the internet today and a lot of Mk VI Golf GTi drivers have had this problem when switching tyres around turns out that due to the rear wheel camber they wear the inside of the rears.

This may be a common fault on many modern cars with sports suspension, the tyres I have fitted are Pirelli PZero Nero 215 45 18 this may be a weakness of these particular tyres .

ajaycad · Oct 9th, 2012, 21:14

Swap them back to their original positions and see if the noise goes at least you will know that it's a wheel/tyre issue and not the car

Oct 8th, 2012, 19:53	#1
SiRS2000 Master Member Last Online: Oct 27th, 2022 09:46 Join Date: Jun 2010 Location: Swindon	Dull Thumping from Tyre / Wheel I swapped my wheels round yesterday Fronts to rear, Rear to Front which is something I have always done periodically to spread the wear. My dilemma is that I can now hear a dull thumping that gets quicker the faster you go, The car Corners & Brakes fine it also does not wander to suggest that the tracking is out and the tyre ware on the original fronts was even. I have never skidded to a halt with these tyres so there are no obvious flat spots. Any suggestions would be welcome. __________________

Oct 8th, 2012, 20:04	#3
SiRS2000 Master Member Last Online: Oct 27th, 2022 09:46 Join Date: Jun 2010 Location: Swindon	I torqued all the Nuts up but always worth a second check. __________________

Oct 9th, 2012, 21:14	#10
ajaycad 1200 VMax Rider Last Online: Jan 7th, 2017 19:46 Join Date: Jul 2012 Location: Cornwall	Swap them back to their original positions and see if the noise goes at least you will know that it's a wheel/tyre issue and not the car __________________

Oct 8th, 2012, 19:57	#2
marct1980 Senior Member Last Online: Mar 31st, 2024 17:45 Join Date: May 2011 Location: portlethen	start with the obvious, i did this to a lupo gti once! swapped the wheels and knocking started turned out that one or more of the bolts were loose and they warped the hole turning it egg shaped very quickly. wrecked the alloy !! i dont know how many people looked at it before we realised what had happened!

Oct 8th, 2012, 20:53	#6
marct1980 Senior Member Last Online: Mar 31st, 2024 17:45 Join Date: May 2011 Location: portlethen	good luck let us know if it stops tomorrow!

Oct 8th, 2012, 21:10	#7
Ninja59 Probably Akita's Toyboy.. Last Online: Dec 27th, 2023 22:24 Join Date: Jul 2010 Location: A House.	heard this before from other volvo p1 owners mainly in the US, the p1 platform rears have a slight camber (on the c30 at least) resulting in it riding slightly more on the inner side this could be your issue. check tyre pressures to...i run mine at 38 psi now.

Oct 9th, 2012, 09:57	#8
colinjy Junior Member Last Online: Jun 4th, 2016 01:31 Join Date: Sep 2012 Location: Oxfordshire	could be a flat spot in the tyre that was on the back.

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