C5 wheel nut torque?
Thread Starter
Instructor
Joined: Aug 2000
Posts: 244
Likes: 0
From: Burlington, Ontario, Canada
C5 wheel nut torque?
Hello! I had posted regarding this quite a while ago, and had a chance to go back to my 2001 shop manual to do some checking...
Based on the reading I've done on the Forum, and the generous feedback I received, it's fairly consistent that the torque spec for the wheel nuts is 100 ft lbs.
In my 2001 shop manual, on page 3-98, it states:
"2. Install the wheel nuts.
Tighten
Tighten the nuts in a criss-cross pattern to 190 Nm (140 lb.ft)"
I'm very concerned about this - is it a mis-print? I've already tightened by wheels to that spec and have been driving on them for several weeks . ..what could the impact be? (damaged rims/brakes?)
Your guidance would be greatly appreciated.
Cheers
Jason
Based on the reading I've done on the Forum, and the generous feedback I received, it's fairly consistent that the torque spec for the wheel nuts is 100 ft lbs.
In my 2001 shop manual, on page 3-98, it states:
"2. Install the wheel nuts.
Tighten
Tighten the nuts in a criss-cross pattern to 190 Nm (140 lb.ft)"
I'm very concerned about this - is it a mis-print? I've already tightened by wheels to that spec and have been driving on them for several weeks . ..what could the impact be? (damaged rims/brakes?)
Your guidance would be greatly appreciated.
Cheers
Jason
Safety Car
Joined: Sep 2001
Posts: 4,411
Likes: 1
From: Wilmington NC
Re: C5 wheel nut torque? (JasonS)
Hello! I had posted regarding this quite a while ago, and had a chance to go back to my 2001 shop manual to do some checking...
Based on the reading I've done on the Forum, and the generous feedback I received, it's fairly consistent that the torque spec for the wheel nuts is 100 ft lbs.
In my 2001 shop manual, on page 3-98, it states:
"2. Install the wheel nuts.
Tighten
Tighten the nuts in a criss-cross pattern to 190 Nm (140 lb.ft)"
I'm very concerned about this - is it a mis-print? I've already tightened by wheels to that spec and have been driving on them for several weeks . ..what could the impact be? (damaged rims/brakes?)
Your guidance would be greatly appreciated.
Cheers
Jason
Based on the reading I've done on the Forum, and the generous feedback I received, it's fairly consistent that the torque spec for the wheel nuts is 100 ft lbs.
In my 2001 shop manual, on page 3-98, it states:
"2. Install the wheel nuts.
Tighten
Tighten the nuts in a criss-cross pattern to 190 Nm (140 lb.ft)"
I'm very concerned about this - is it a mis-print? I've already tightened by wheels to that spec and have been driving on them for several weeks . ..what could the impact be? (damaged rims/brakes?)
Your guidance would be greatly appreciated.
Cheers
Jason
Race Director
Joined: Aug 2001
Posts: 17,901
Likes: 18
From: Elko, Nevada
Re: C5 wheel nut torque? (JasonS)
..what could the impact be? (damaged rims/brakes?)
particular wheel are not at the same torque levels. 100-ft-lbs is
what mine are at, and that's 2000 wheels on a 98' car as well.
:cheers:
Racer
Joined: Feb 2002
Posts: 479
Likes: 1
From: Portland OR
Re: C5 wheel nut torque? (JasonS)
Jason - Just checked my 2001 shop manual and you are absolutely right. Page 3-98 says 140 ft-lbs or 190 N-m. Page 3-92 shows 100 ft-lbs or 140 N-m. Every other reference I have seen including page 3-75 in the owner's manual says 100 ft-lbs or 140 Newton-meters. That is a serious misprint. Thanks for pointing it out.
Alan
Alan
Race Director
Joined: Jul 2002
Posts: 11,522
Likes: 0
From: Sterling VA
Re: C5 wheel nut torque? (Buckmaster)
Call a dealer's shop and ask how they do it. :rolleyes: :lol: :lol: I'm sure they take extreme care to make sure the wheels are torqued to spec. :jester
Team Owner
Joined: Sep 2000
Posts: 25,001
Likes: 2,701
From: Far NW 'burbs of Chicago
St. Jude Donor '13
Re: C5 wheel nut torque? (bierbelly)
I posted this info last year, and the strong concensus is that 100 ft/lbs is correct, the 140 in the manual is wrong. The service manual has other errors, it claims that there is an engine oil cooler in the left radiator tank (as compared to the auto trans cooler in the right tank). I've had my radiator out and, trust me, there is no engine oil cooler there.
After finding these errors I spent an entire morning on the phone trying to reach whoever is in charge of service manual corrections, either there is no such person or we are not allowed access to them. Which would explain why it took years for GM to admit that the section in the Corvette service manual that "explained" how the steering effort could be adjusted (it can't) was wrong.
After finding these errors I spent an entire morning on the phone trying to reach whoever is in charge of service manual corrections, either there is no such person or we are not allowed access to them. Which would explain why it took years for GM to admit that the section in the Corvette service manual that "explained" how the steering effort could be adjusted (it can't) was wrong.
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Burning Brakes
Joined: Mar 2000
Posts: 973
Likes: 0
From: San Jose, CA
Re: C5 wheel nut torque? (JasonS)
I think your quote might be a mistake. There are numerous references to 100 ft/#'s and 140 nt/m. I use 100 ft#s. Remember torque your bolts on the pull stroke not the push stroke!
Burning Brakes
Joined: Oct 1999
Posts: 1,041
Likes: 0
From: Charleston SC
Re: C5 wheel nut torque? (Stingray1967)
FWIW, some folks, including me, tighten in a star pattern at 30, then 60, to a final 90 ft-lbs without anything coming loose. The higher the torque value, as I understand it, the greater the chance of even minor variations in the tightness of individual wheel lugs leading to rotor warpage.
Le Mans Master
Joined: Mar 2002
Posts: 7,179
Likes: 1
From: Honolulu Hawaii
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Re: C5 wheel nut torque? (bierbelly)
Call a dealer's shop and ask how they do it. :rolleyes: :lol: :lol: I'm sure they take extreme care to make sure the wheels are torqued to spec. :jester
Racer
Joined: Sep 2001
Posts: 429
Likes: 0
From: Rocky Mount NC
Re: C5 wheel nut torque? (OCMike)
I was in a tire/break shop yesterday checking rotors and break pad wear. When reinstalling the tires, the shop guy looked at his manual, and promptly pulled out a torque wrench!!!
Asked what he was setting it on....100lbs!
Amazing :D
Asked what he was setting it on....100lbs!
Amazing :D
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
Re: C5 wheel nut torque? (Chandlerdah)
I was in a tire/break shop yesterday checking rotors and break pad wear. When reinstalling the tires, the shop guy looked at his manual, and promptly pulled out a torque wrench!!!
Asked what he was setting it on....100lbs!
Amazing :D
Asked what he was setting it on....100lbs!
Amazing :D
Quick! Call Guiness!!!
100 lbs./ft. here. :yesnod:
