Centerlock Wheel Installation Comments
#181
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Yes and No. For starters, you only have to worry about one bolt! That's nice.
No 5 bolts to torque in star pattern, etc.
But, having to have someone hold the steering wheel while torquing the fronts
can be a pain. I don't know how it could be a one person job for the fronts.
Guiding the wheel on with the centering tool is a piece of cake. I like that.
Dealing with the paste, not so much. It gets on the threads of the centering
tool and is messy. But all in all, not so bad.
No 5 bolts to torque in star pattern, etc.
But, having to have someone hold the steering wheel while torquing the fronts
can be a pain. I don't know how it could be a one person job for the fronts.
Guiding the wheel on with the centering tool is a piece of cake. I like that.
Dealing with the paste, not so much. It gets on the threads of the centering
tool and is messy. But all in all, not so bad.
#182
GT3 player par excellence
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rubbaman posted a pic with two breaker bars
one is with precision instrument
the other is from porsche dealer (telescoping)
i have 4 breaker bar (telescoping) from porsche dealer, the one suncoast sells too). it's nice that it telescopes. BUT you will bend it and will no long be telescoping. i am not that big and pretty weak in arm power. YMMV. that's an expensive bar too!
one is with precision instrument
the other is from porsche dealer (telescoping)
i have 4 breaker bar (telescoping) from porsche dealer, the one suncoast sells too). it's nice that it telescopes. BUT you will bend it and will no long be telescoping. i am not that big and pretty weak in arm power. YMMV. that's an expensive bar too!
#183
Nordschleife Master
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rubbaman posted a pic with two breaker bars
one is with precision instrument
the other is from porsche dealer (telescoping)
i have 4 breaker bar (telescoping) from porsche dealer, the one suncoast sells too). it's nice that it telescopes. BUT you will bend it and will no long be telescoping. i am not that big and pretty weak in arm power. YMMV. that's an expensive bar too!
one is with precision instrument
the other is from porsche dealer (telescoping)
i have 4 breaker bar (telescoping) from porsche dealer, the one suncoast sells too). it's nice that it telescopes. BUT you will bend it and will no long be telescoping. i am not that big and pretty weak in arm power. YMMV. that's an expensive bar too!
#185
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#186
Three Wheelin'
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Yes and No. For starters, you only have to worry about one bolt! That's nice.
No 5 bolts to torque in star pattern, etc.
But, having to have someone hold the steering wheel while torquing the fronts
can be a pain. I don't know how it could be a one person job for the fronts.
Guiding the wheel on with the centering tool is a piece of cake. I like that.
Dealing with the paste, not so much. It gets on the threads of the centering
tool and is messy. But all in all, not so bad.
No 5 bolts to torque in star pattern, etc.
But, having to have someone hold the steering wheel while torquing the fronts
can be a pain. I don't know how it could be a one person job for the fronts.
Guiding the wheel on with the centering tool is a piece of cake. I like that.
Dealing with the paste, not so much. It gets on the threads of the centering
tool and is messy. But all in all, not so bad.
#187
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^ Not needed to have someone hold the wheel unless you have both front wheels off the ground, then maybe if you aren't using a torque multiplier.
#188
Race Director
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#189
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I haven't done the wheels yet, but I have lifted the car. The 991 chassis is so stiff that if you lift at one front jacking point even a little more than necessary to get the wheel off you'll take most if not all of the weight off of the other side as well. I suspect that's the issue.....
#190
Race Director
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Never an issue on the .2 and come to think of it, I removed all four wheels with the car on the jack stands. I never thought of it, but the torque multiplier stabilizes the wheel against the ground (or wood block in my case) so this was a non issue. I've seen plenty of people lift .2 GT3 from one side and remove front wheels with a lever arm no problem. I don't think there would be any difference with the 991 GT3.
Also, the body of the 991 is torsionally stiffer than the 997.2 body by about 25%, so that may be relevant when comparing jacking a 997.2 to a 991. Or not, just sayin'....
#191
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Never an issue on the .2 and come to think of it, I removed all four wheels with the car on the jack stands. I never thought of it, but the torque multiplier stabilizes the wheel against the ground (or wood block in my case) so this was a non issue. I've seen plenty of people lift .2 GT3 from one side and remove front wheels with a lever arm no problem. I don't think there would be any difference with the 991 GT3.
#192
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Sorry, not trying to be argumentative. Clearly, rubbaman had an actual issue with the wheels turning while torqueing the CL and it is mentioned specifically in the manual so there's that. I haven't tried it personally, just trying to think of an explanation for what happened to him.
Also, the body of the 991 is torsionally stiffer than the 997 body by about 25%, so that may be relevant when comparing jacking a 997.2 to a 991. Or not, just sayin'....
Also, the body of the 991 is torsionally stiffer than the 997 body by about 25%, so that may be relevant when comparing jacking a 997.2 to a 991. Or not, just sayin'....
Well again, I would say this is all about technique and practice.
#193
Race Director
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Yes, we will just have to try it. Could be that it will take lifting on both jack points on one side to keep the other side on the ground to make the torqueing a one man job with a lever arm. Another reason for a torque multiplier!
Well again, I would say this is all about technique and practice.
Well again, I would say this is all about technique and practice.
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Ok, so while chassis stiffness might be a factor when lifting one front corner, it shouldn't be an issue with all 4 wheels off the ground.
It could be technique but also maybe the EM steering in the 991 offers less resistance to turning with the engine off than the hydraulic rack in the 997.2. Even more likely reason: the 997.2 GT3 has a steering wheel lock when the key is removed from the ignition. If the wheels are turned slightly, they lock up. The 991 GT3 doesn't have a steering lock. I can turn the wheel fully both directions with no key in the ignition.
#194
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#195
Racer
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Even when I lowered the fronts such that one wheel was in contact with the ground, with the high amount of torque being applied coupled with the extension bar arm offset, the wheels did tend to rotate........Son! Hold the steering wheel tight and press the brake for daddy.;-) Problem solved.
Last edited by CALSE; 12-12-2014 at 05:07 AM.