GM TTY balancer bolt - install question
Thread Starter
Intermediate
Joined: Jan 2021
Posts: 27
Likes: 0
From: Toronto
GM TTY balancer bolt - install question
I plan to replace my balancer soon.
I have both the ARP and a new GM bolt, but decided not to use the ARP as I don't trust my old torque wrench is calibrated.
When installing the Gm bolt, after torquing to 37 ft lbs, I have to turn an additional 140 degrees. Must this be done in 1 movement (0-140), or can I do it in multiple movements (0-90 then 90-140)? The reason I ask is I don't think I'll have enough clearance to do it without repositioning the wrench.
Thanks.
I have both the ARP and a new GM bolt, but decided not to use the ARP as I don't trust my old torque wrench is calibrated.
When installing the Gm bolt, after torquing to 37 ft lbs, I have to turn an additional 140 degrees. Must this be done in 1 movement (0-140), or can I do it in multiple movements (0-90 then 90-140)? The reason I ask is I don't think I'll have enough clearance to do it without repositioning the wrench.
Thanks.
Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,151
From: SW Florida
2021 C6 of the Year Finalist - Modified
Just put a mark at the 12 o'clock position (top) of the bolt head after torqueing to that initial 37 ft/lb since your going to be putting your breaker bar in different positions when making those baby steps to 140 degrees.
Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,151
From: SW Florida
2021 C6 of the Year Finalist - Modified
Just turn the bolt so the dot starts at the 12 o'clock (360 degree) position after that first 37 ft/lb torque is applied ... Then after tightening the rest of the way the dot ends when it's half way between the 90 degree and the 180 degree position.
Close enough for government work ! . .
Close enough for government work ! . .
Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,151
From: SW Florida
2021 C6 of the Year Finalist - Modified
One other thing .... If you [ever] plan on installing a supercharger on the engine, now is the time to pin the harmonic dampner to the crank ... Later down the road you will be damned glad you already pinned the crank.
It will save you lots and lots of work later on.
It will save you lots and lots of work later on.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Intermediate
Joined: Jan 2021
Posts: 27
Likes: 0
From: Toronto
Thread Starter
Intermediate
Joined: Jan 2021
Posts: 27
Likes: 0
From: Toronto
If I'm able to borrow a pinning kit I'll do it. Otherwise, I'm not too concerned - it's a stock A6 convertible... built for cruising 
Thanks again for all the help. With these forums, youtube, and a bunch of patience, I don't expect any surprises.
Thanks again for all the help. With these forums, youtube, and a bunch of patience, I don't expect any surprises.
Thread Starter
Intermediate
Joined: Jan 2021
Posts: 27
Likes: 0
From: Toronto
