What did you do to your 991 turbo today?
#1801
RL Community Team
Rennlist Member
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Thread Starter
Great mod, that looks considerably better.
#1802
Three Wheelin'
Great job on the weight! No, I'm saying that you cannot under any circumstances tighten the wheels while the car is touching the ground. It must be lifted up off the ground before you tighten or loosen the wheels. Also, check out the RennTorque!
#1803
Rennlist Member
#1804
RL Community Team
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Thread Starter
What is the difference between lifting the car and having someone holding the brake pedal down ...?
As I mentioned, I discovered I could move the car the first time I changed the wheels - since then, always a second person to hold as I brake, then torque, while on the ground..
I now expect you to tell me I have done something horrible to the car.
As I mentioned, I discovered I could move the car the first time I changed the wheels - since then, always a second person to hold as I brake, then torque, while on the ground..
I now expect you to tell me I have done something horrible to the car.
#1805
Rennlist Member
Discussed many times elsewhere, but a reversible speed clamp does a great job of holding the brake pedal down and avoids having to get the wife down to the garage to step on the brakes....
But yes, centerlocks are evidently meant to be torqued without weight on the wheels, though i doubt it really causes much of a problem as long as they are at least fairly tight before lowering.
But yes, centerlocks are evidently meant to be torqued without weight on the wheels, though i doubt it really causes much of a problem as long as they are at least fairly tight before lowering.
Last edited by pfbz; 10-16-2020 at 01:20 AM.
#1806
RL Community Team
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As long, of course, Randy does not tell me I am going to burn for doing this work on the ground....
#1807
Three Wheelin'
Fantastic news!! You are not going to burn! No, I'm not trying to judge, I'm trying to explain that centerlock wheels by their very nature must be tightened and untightened without weight on them because the contact surfaces are curved, not flat. Remember, those "nubs" that stick out from the rotor are just plastic with tiny aluminum screws, not metal like a lug nut, and they cannot handle any weight at all if the wheel is loosened up. It's a total pain to have to lift the car to do it, but it's the only way. I'm sorry if I came across as preachy. Honestly just trying to help.
#1808
RL Community Team
Rennlist Member
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Thread Starter
Fantastic news!! You are not going to burn! No, I'm not trying to judge, I'm trying to explain that centerlock wheels by their very nature must be tightened and untightened without weight on them because the contact surfaces are curved, not flat. Remember, those "nubs" that stick out from the rotor are just plastic with tiny aluminum screws, not metal like a lug nut, and they cannot handle any weight at all if the wheel is loosened up. It's a total pain to have to lift the car to do it, but it's the only way. I'm sorry if I came across as preachy. Honestly just t
rying to help.
rying to help.
So my exact procedure is the break the nut with someone holding the brake, lift the car, unwind the nut by hand, put my Suncoast wheel guide on, remove the wheel, swap the wheel, re mount, tighten cl by hand, apply a little torque with the torque wrench, drop the car, hold the brake and torque to spec.
After, the car is driven around the shop, about a half mile, then brought back in and retorqued to spec.
I also use anti seize in both the nut and the threads ...
Since the car has been in the garage, I have done this exactly five times, and am expecting to do the sixth shortly. The wheels were re and re'd one other time when the springs were swapped out.
Thoughts?
Last edited by 2fcknfst; 10-16-2020 at 02:19 AM.
#1811
RL Community Team
Rennlist Member
Rennlist Member
Thread Starter
#1812
RL Community Team
Rennlist Member
Rennlist Member
Thread Starter
Fantastic news!! You are not going to burn! No, I'm not trying to judge, I'm trying to explain that centerlock wheels by their very nature must be tightened and untightened without weight on them because the contact surfaces are curved, not flat. Remember, those "nubs" that stick out from the rotor are just plastic with tiny aluminum screws, not metal like a lug nut, and they cannot handle any weight at all if the wheel is loosened up. It's a total pain to have to lift the car to do it, but it's the only way. I'm sorry if I came across as preachy. Honestly just trying to help.
#1813
Official Wednesday AM Red Bull F1 test driver
Rennlist Member
Rennlist Member
Drove it to my shop today and got my '73 bahia red 914 running after a transaxle rebuild and some engine work... temps finally cooling down a little here in the valley of the sun (and HEAT) so the AC'ed cars can come back to play...
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shaggy (10-17-2020)