Ok, WTH
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,491
Likes: 868
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
Ok, WTH
88 with a 383 and 700 trans. 8" balancer....entire suspension is new and motor mounts..<500 miles on entire build.
So this year id have a weird noise when it started cold. After about a minute tops it would go away...took belt off and it was still there. This is what I found....
I can think of 10 things that might cause this. i didnt wanna post this until I dove into it a little more, but figured I'd see what anyone has to say....im winterizing 200 boats so I'm busy as hell, but this weekend I'm gonna try to get balancer off...I was hoping maybe something fell in there but can't get a good pic until crank pulley is off...
Was hoping to get more miles this year before it gets too cold, but looking not its not gonna happen...
So this year id have a weird noise when it started cold. After about a minute tops it would go away...took belt off and it was still there. This is what I found....
I can think of 10 things that might cause this. i didnt wanna post this until I dove into it a little more, but figured I'd see what anyone has to say....im winterizing 200 boats so I'm busy as hell, but this weekend I'm gonna try to get balancer off...I was hoping maybe something fell in there but can't get a good pic until crank pulley is off...
Was hoping to get more miles this year before it gets too cold, but looking not its not gonna happen...
Drifting
Joined: Jan 2005
Posts: 1,350
Likes: 322
From: San Antonio Tx
When I installed by motor many years ago it had an 8" balancer. I came up with three options: notch the cross member, install thin spacers between the motor mounts and the block, or replace the balancer with a smaller one. I chose to go with the smaller balancer. With age the motor mounts can sag a little.
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,491
Likes: 868
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
When I installed by motor many years ago it had an 8" balancer. I came up with three options: notch the cross member, install thin spacers between the motor mounts and the block, or replace the balancer with a smaller one. I chose to go with the smaller balancer. With age the motor mounts can sag a little.
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,491
Likes: 868
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
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
Melting Slicks
Joined: Jul 2003
Posts: 3,491
Likes: 868
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
10 years old but only installed under a load since 2017, and <500 miles on the entire car.
But still going to see if they budge. I can see my air filter and under heavy acceleration (built 383), the engine dosent seem to be twisting anymore than usual.
But still going to see if they budge. I can see my air filter and under heavy acceleration (built 383), the engine dosent seem to be twisting anymore than usual.
Team Owner
Joined: Dec 2012
Posts: 30,427
Likes: 1,609
From: Outside the Quick Stop N.J.
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,491
Likes: 868
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
Think I'm gonna pull it off and go smaller...best fix I think. Problem will never haunt me again....
Safety Car
Joined: Apr 2016
Posts: 4,648
Likes: 1,059
From: N.E. Ohio OH
Finalist 2020 C4 of the Year - Modified
Why not take it to a machine shop and have them cut a 45 deg relief cut there ? Or a friend with a lathe ? If it is indicated in true (good machine shop practice) you won't change the way the balancer is balanced as equal amounts of material would be removed all the way around.
In fact, you already have a relief cut going as it is.
That is what I would do.
This thread talked about the same thing. Talked about cutting the frame for clearance. I hate cutting on a frame, gives it a place to start rusting (depending on where you live). Since you say you are winterizing boats, you must be close to some water, and humidity, and changing weather.
https://www.corvetteforum.com/forums...rom-frame.html
In fact, you already have a relief cut going as it is.
That is what I would do.
This thread talked about the same thing. Talked about cutting the frame for clearance. I hate cutting on a frame, gives it a place to start rusting (depending on where you live). Since you say you are winterizing boats, you must be close to some water, and humidity, and changing weather.
https://www.corvetteforum.com/forums...rom-frame.html
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,491
Likes: 868
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
Why not take it to a machine shop and have them cut a 45 deg relief cut there ? Or a friend with a lathe ? If it is indicated in true (good machine shop practice) you won't change the way the balancer is balanced as equal amounts of material would be removed all the way around.
In fact, you already have a relief cut going as it is.
That is what I would do.
In fact, you already have a relief cut going as it is.
That is what I would do.
Safety Car
Joined: Apr 2016
Posts: 4,648
Likes: 1,059
From: N.E. Ohio OH
Finalist 2020 C4 of the Year - Modified
Yeah, I have filed 1000's of things when I worked in the trade 45 years ago. But when I wanted something to maintain balance, etc. I would always cut it. Then it is precise.
Of course I was used to working with tolerances of +.0000 or -.0003, so I always did (and still do) stuff as precise as I can.
Of course I was used to working with tolerances of +.0000 or -.0003, so I always did (and still do) stuff as precise as I can.
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,491
Likes: 868
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
Yeah, I have filed 1000's of things when I worked in the trade 45 years ago. But when I wanted something to maintain balance, etc. I would always cut it. Then it is precise.
Of course I was used to working with tolerances of +.0000 or -.0003, so I always did (and still do) stuff as precise as I can.
Of course I was used to working with tolerances of +.0000 or -.0003, so I always did (and still do) stuff as precise as I can.
Safety Car
Joined: Apr 2016
Posts: 4,648
Likes: 1,059
From: N.E. Ohio OH
Finalist 2020 C4 of the Year - Modified
Do you have an industrial supply house close by ? A high speed steel lathe blank shouldn't be that expensive, in fact they are not. Do you have a Grainger close by
https://www.grainger.com/category/ma...he-tool-blanks
If you take the time and indicate it in so the face runs true and the OD is only out .001 or .002, that would be good enough.
Do you have Amazon prime (or a family member)
10 bucks or so sure and your own time beats the cost of a new balancer.
https://www.grainger.com/category/ma...he-tool-blanks
If you take the time and indicate it in so the face runs true and the OD is only out .001 or .002, that would be good enough.
Do you have Amazon prime (or a family member)
10 bucks or so sure and your own time beats the cost of a new balancer.
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,491
Likes: 868
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
Do you have an industrial supply house close by ? A high speed steel lathe blank shouldn't be that expensive, in fact they are not. Do you have a Grainger close by
https://www.grainger.com/category/ma...he-tool-blanks
If you take the time and indicate it in so the face runs true and the OD is only out .001 or .002, that would be good enough.
Do you have Amazon prime (or a family member)
https://www.amazon.com/HHIP-2000-000...Q%3D%3D&sr=8-9
10 bucks or so sure and your own time beats the cost of a new balancer.
https://www.grainger.com/category/ma...he-tool-blanks
If you take the time and indicate it in so the face runs true and the OD is only out .001 or .002, that would be good enough.
Do you have Amazon prime (or a family member)
https://www.amazon.com/HHIP-2000-000...Q%3D%3D&sr=8-9
10 bucks or so sure and your own time beats the cost of a new balancer.
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,491
Likes: 868
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
So it seems the motor mount passenger side has a decent amount of play. Gonna change them 1st and see if it helps this issues....ill follow up with results....thanks everyone