Poorly fitted tyres???

Poorly fitted tyres???

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gsewell

Original Poster:

694 posts

284 months

Monday 30th March 2015
quotequote all
I've just had some new tyres fitted to my Cayman by a branch of a branch of a major tyre/exhaust shop. On driving away, I noticed a rhythmic shh, shh, shh noise followed a couple of hundred metres later by a loud pop and the rear of the car bounce for a second. By the time I found a safe place to stop, the noises had gone away so I continued home. Checking the pressures, my nearside rear had dropped 2.5psi! I am assuming that the beading was not perfectly set and that was the pop that I heard/felt.

Going for a quick test drive this morning, there was nothing of note and the tyre pressure had held steady for 2 days. Am I worrying over nothing or should I go back?

gsewell

Original Poster:

694 posts

284 months

Monday 30th March 2015
quotequote all
Back from the tyre shop and I am not entirely impressed. First reaction was that I had remounted the wheel as they claimed that they did not use white paste. However, they removed the wheel and the only evidence of anything untoward was the lack of a balance weight. The wheel needed 55g.
We could see no scuffs, scrapes or scratches on either the tyre nor on anything in the wheel arch.
Their hypothesis is that the balance weight was not secure and hence caused the shh'ing noise and then flew off while I was accelerating, causing the instability.
So do I now invalidate the tyre guarantee (yes against punctures, etc) by going elsewhere to get a second opinion?