Pullys
Thread Starter
Instructor
Joined: Jul 2010
Posts: 177
Likes: 0
Pullys
Is there any possiable way that the Harmonic balancer pullys could move back toward the engine? My A/C belt broke and I was looking at the pullys and they didn't seem to line up.They all felt tight so I don't know what's going on.
Tech Contributor
Joined: Jan 2007
Posts: 19,246
Likes: 1,092
From: Dyer, IN
Yes it is, if the balancer separates. Post a pic.
Melting Slicks
Joined: Sep 2006
Posts: 2,736
Likes: 7
From: Redding CA
It's a fairly common issue. you can also put a marker or paint line on the balancer straight from the hub to the outer part...go drive the car and get on it once or twice up to 5000 rpm or so...see if your outer line moved relative to the inner. then you'll know if it's spinning on the hub(forgive the grammar/spelling/punctuation)
Le Mans Master
Joined: Dec 2000
Posts: 5,245
Likes: 25
From: Blue Ridge Georgia
I'm just finishing a cam install and I will tell you changing the balancer is a little work. Everyone needs to find the joy in removing your steering rack. Oh, and 240 torque on that balancer bolt.
Drifting
Joined: Jan 2008
Posts: 1,722
Likes: 138
From: Florida
St. Jude Donor '09
That is not the correct torque value for the harmonic balancer bolt. It's torque to yield fastener with in initial torque value (can't remember) in FT/LBS for the first pass followed by a second pass to 140 deg I believe.
Last edited by ipuig; Jan 23, 2011 at 10:30 PM.
Tech Contributor
Joined: Jan 2007
Posts: 19,246
Likes: 1,092
From: Dyer, IN
196 ft lbs - moly lube
235 ft lbs - loctite
247 ft lbs - 30 wt oil
Drifting
Joined: Jan 2008
Posts: 1,722
Likes: 138
From: Florida
St. Jude Donor '09
Thanks but he did not specify ARP. I would not use a non-TTY fastener for this application unless there was a key way used.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
2027 Corvette vs The World: Every Model vs Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
Drifting
Joined: Jan 2008
Posts: 1,722
Likes: 138
From: Florida
St. Jude Donor '09
Yes, it is one of the required steps listed in the service manual procedure for the harmonic balance replacement. You may want to consider getting one.