As my right rear tire got punctured (maybe nail/screw) and I need to replace it (will actually replace ALL...), I would appreciate any info as far as these items are concerned: - points underneath the car to place the lift at (pic ?) - torque of the screws in NM - tire pressure system: Any special ops or just do the normal re-calibration via the car-setup ? - special care when taking off the wheels in respect of the ceramic-brakes ( don't wanna ruin THEM ) Cheers and TIA, Ulli
Moin Ulli, as my dealer closed his facility in my neighbourhood and I'm not willing to drive 300km for a tyre change I checked some points out in advance. Your mechanic will see where to put the lift - nothing special here. The torque for the screws is 120 Nm. After having set the correct pressure recalibrate the TPMS via set-up. Other than that it's just normal ops...
A tip on protecting the ceramic discs: Porsche makes a lug bolt guide tool that screws into the hub threads, it fits into Ferrari threads as well. Use two of theses guides and it is impossible to strike the brake disc. Damaging the disc is by far the biggest risk here, if you do, it will be a very expensive tire change.
Brilliant info. I know 997/991 GT3 ceramics well, as it has one only one bolt to release the wheel, if you even hit the rotor with the wheel, the rotor is probably toast. So the Porsche mounting bolt guides for the Ferrari wheels is a great thought, and should be kept in toolkit, imo. Here is what they look like: Wheel Mounting Guide Boltorsche Parts & Porsche Accessories - Wholesale Porsche Parts & Tequipment
Thanks a lot, guys - Really helpful info/feedback ! Funny, I'll be at my local Porsche-dealer for changing the tires anyway (am a longtime customer). So that tip about a special tool re: ceramic brakes is VERY MUCH appreciated. Guess they'd use it anyway for me as I always value the contact to ANY of the local mechanics WAY MORE than that to (most of the) salespersons. It pays out in the long run, be it tips given for free or, in this case, changing the tires on a foreign brand. Thanks again and take care, Ulli @Andi: Auch ein Tamsen-Bremen-Geschädigter ? Ärgerlich für die Kundschaft, aber kein Wunder beim neuen Eigner.
You are very welcome. To make it even easier for the Porsche techs, give them the proper tightening torque specification for the Ferrari. It is in the owners manual, I believe that Ferrari specifies a pre-tightening torque then a finishing torque. This will be different than standard Porsche procedure, so you may want to gently point it out. Cheers, Ron
Just another thought... I had the hub on my 458 spider damaged when the dealer was having some wheel work performed! Car has been the shop two weeks waiting for a new hub!
also make sure you note the rims have no scratches on the lip, all to many times the people mount and unmount the tires at the dealers thin its ok to scratch the lips on the rims just make sure you have whoever is going to mount and un mount the tires they do not scratch it or they will be paying to fix the rim.
Once again valuable hints - Thanks to all. Didn't know about pre-tightening the screws, never heard of that procedure. So this is NOT the usual procedure of crosswise pre-tightening the screws you do when mounting the wheel but actually applying torque to all the screws once again before finally fixing them with 120 Nm ? Will OF COURSE do photographs of the rims BEFORE I put the car into the hands of those guys. Also, a friend will come along to take me back home once I've handed over the car (can't wait half a day) and be my witness as to the perfect state of the rims before the work is carried out. Don't get me wrong: I'm NOT the person making a habit of coming up with false claims to get new rims for free, but you DO have to watch your *ss nowadays... Take care and enjoy your cars as life is quite short, Ulli
Please note, you would need TWO mounting bolt guides for the avoid damages. With only one, the wheel still can sway in the wrong direction into the ceramics.
Just for future reference (e.g. someone searching the posts on this topic): The advised torque for the screws is 100 Nm only ! Best, Ulli
