Impossible to balance wheel ... two shops already failed ..., New tyres didn't help ... |
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Impossible to balance wheel ... two shops already failed ..., New tyres didn't help ... |
johannes |
May 28 2009, 07:31 AM
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#1
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Club Porsche 914 France President Group: Members Posts: 3,084 Joined: 13-January 06 From: France Member No.: 5,409 Region Association: France |
I bought a set of Mahle with tyres.
I brought them to a shop to have them balanced. When I put them on the car it started to vibrate at 90 to 120 kmh (55 to 75 Mph) Brought it back to the shop, redid the balance, didn't help. They say, the tyres may be warped. I bought them a new set of tyres, let it balance ... didn't help. They sent me to another shop that has a better machine. They put (a lot of)weigths inside and outside the rim (ugly), but it didn't helped. The problem occured when I bought these rims I figure they may be bent ... Could this old and wise guy be right ? http://www.youtube.com/watch?v=PeclYZQCyso Any advices ... |
type11969 |
May 28 2009, 05:24 PM
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#2
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Senior Member Group: Members Posts: 1,231 Joined: 2-December 03 From: Collingswood, NJ Member No.: 1,410 Region Association: North East States |
Check to make sure that the mounting surface is free of rust/crud so that the wheel is mounted flush to the rotor. This created a big problem on my miata.
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johannes |
May 29 2009, 05:02 AM
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#3
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Club Porsche 914 France President Group: Members Posts: 3,084 Joined: 13-January 06 From: France Member No.: 5,409 Region Association: France |
Check to make sure that the mounting surface is free of rust/crud so that the wheel is mounted flush to the rotor. This created a big problem on my miata. I'll check that too... Thanx QUOTE If you want a good tire balance, go to your local ford dealer. If they have a (radial force balancer) aka road force balancer, they should be able to take care of your problem. They should be able to measure all of your wheels for excessive run out, and give you a print out of all the wheels. I live in France ... I don't think Ford dealers in Europe have the same equipement QUOTE I had the same problem when I bought a set of Mahle wheels. It turned out my front discs were not the "hubcentric" type and the Mahle's really need that in order to mount correctly and not vibrate. Maybe because they are so light. I corrected by buying new front brake discs that had the hubcentric ring in the center. My 914 is a 75 and the Mahle were adapted to this car. I have hub at the front and no hub at the rear. I think this is stock setup. |
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