Trouble with Fluidamper installation...
Thread Starter
Instructor
Joined: Feb 2001
Posts: 217
Likes: 1
From: Suwanee GA
Trouble with Fluidamper installation...
We are using the correct tool, but starting to pull metal shavings off the crank (with about 1/2" to go). This is a new Scat 4340 crank, and a damper I pulled off my 433.
Will heating or cooling the damper make any difference before we try again tonight? Seems like cooling it would cause the metal to slightly contract and widen the ID. Any suggestions?
Will heating or cooling the damper make any difference before we try again tonight? Seems like cooling it would cause the metal to slightly contract and widen the ID. Any suggestions?
Race Director
Joined: Jan 2000
Posts: 13,013
Likes: 2,253
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
You're going to HAVE to hone it. Don't take a chance on splitting it!! They almost always have to be honed to fit the crank. They are made undersized slightly so that they can fit all cranks. I'm actually surprised it fit the stock one without honing, but apparently there is a huge difference in tolerances in all the factory and aftermarket stuff.
You can take it to a machine shop to be done in a couple of minutes on a rod re-sizing machine, or you can do it in a few hours with a brake cylinder hone and LOTS of patience!
JIM
You can take it to a machine shop to be done in a couple of minutes on a rod re-sizing machine, or you can do it in a few hours with a brake cylinder hone and LOTS of patience!
JIM
Safety Car
Joined: Jul 2002
Posts: 3,770
Likes: 3
From: St Louis MO
Originally Posted by 427Hotrod
You're going to HAVE to hone it. Don't take a chance on splitting it!! They almost always have to be honed to fit the crank. They are made undersized slightly so that they can fit all cranks. I'm actually surprised it fit the stock one without honing, but apparently there is a huge difference in tolerances in all the factory and aftermarket stuff.
You can take it to a machine shop to be done in a couple of minutes on a rod re-sizing machine, or you can do it in a few hours with a brake cylinder hone and LOTS of patience!
JIM
You can take it to a machine shop to be done in a couple of minutes on a rod re-sizing machine, or you can do it in a few hours with a brake cylinder hone and LOTS of patience!
JIM
The directions on Fluidamprs website says to hone to fit. If I remember right the clearance is supposed to be .0005".Brett
Race Director
Joined: Jan 2000
Posts: 13,013
Likes: 2,253
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Not clearance....they probably mean .0005 interference fit. The balancer should be about .0005 smaller than the crank.
JIM
JIM
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Thread Starter
Instructor
Joined: Feb 2001
Posts: 217
Likes: 1
From: Suwanee GA
Balancer
Thanks. Hone and clean up did the trick.
Motor and trans are in car-finally. Now just have to install heads, intake, etc...TKO500 fits like a glove. Hope to hear some music this weekend.
Motor and trans are in car-finally. Now just have to install heads, intake, etc...TKO500 fits like a glove. Hope to hear some music this weekend.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by 427Hotrod
Not clearance....they probably mean .0005 interference fit. The balancer should be about .0005 smaller than the crank.
JIM
JIM
If you hone it, be VERY careful. If you get it too big, it will be functionally, worthless.
RACE ON!!!
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Originally Posted by Doug Brandon
Thanks. Hone and clean up did the trick.
Motor and trans are in car-finally. Now just have to install heads, intake, etc...TKO500 fits like a glove. Hope to hear some music this weekend.
Motor and trans are in car-finally. Now just have to install heads, intake, etc...TKO500 fits like a glove. Hope to hear some music this weekend.
