Crank Keyed, Hub Not?
Crank Keyed, Hub Not? So were assembleing a buddy's 383. Its all buttoned up basically, were doing the entire motor out of the car and putting it in from the bottom. We go to put the balancer on and find that the crank is keyed but the balancer is not. Is it supposed to be like that? Can I get one that is keyed? Need some info on this subject. Its a scat crank. I wasnt there for disassembly of the motor. Seems kinda heavy to turn it not keyed...
Last edited by Mattsz28; Nov 7, 2008 at 09:37 AM. Reason: Spelling pwns me.
If the OE hub had been in place for some time, there's a possibility that it has a "hot oil tatoo" on its inner bore. If so, you can use that as a locator mark, as it shows where the keyway is located.
TECH Senior Member
iTrader: (3)
Joined: Oct 2006
Posts: 7,564
Likes: 4
From: Decatur, TN (N-W of Athens)
From my understanding, the stock hub is simply a hub, and not a balancer. What that means is, it doesn't matter what what you put it on, since it's only purpose is to provide a pulley location. I think it also doubles as a bit of a harmonic dampener, but not a harmonic balancer though.
Hey I have an aftermarket keyed steel dampener that I have not used b/c it was for my 383 build I never did. If you want it let me know via PM. It's a single unit deal, dampener and hub as one.
Last edited by I8ASaleen; Dec 9, 2008 at 09:39 PM.
Trending Topics
TECH Senior Member
iTrader: (3)
Joined: Oct 2006
Posts: 7,564
Likes: 4
From: Decatur, TN (N-W of Athens)
I want to say that a balancer won't work on our internally balanced motors. To me, it would be like adding more weight to a perfectly balanced wheel. But I can't say for sure, I'd wait for someone else to chime in. I know you can take one to your engine builder when the motor is being built, so he can balance the whole rotating assembly with it.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
TECH Fanatic
Joined: Jan 2005
Posts: 1,162
Likes: 0
From: St. Augustine, FL
Frequent removal and installation of the same balancer on the same hub may possibly cause the slightest bit of wear that could possibly make the fitment not as tight as intended and the balancer could possibly slip. Although, (IMO) extremely unlikely with the the minimal amount of load the belt puts on the balancer.
Here, read the description to a keyed hub that is being sold on thunderracing.
KEYED CRANKSHAFT HUBS
Here, read the description to a keyed hub that is being sold on thunderracing.
KEYED CRANKSHAFT HUBS
