OK Guys, need some serious help!!
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Before you pull the pan or the heads or anything else, get a boroscope, that may not be the correct spelling, and look inside the cylinders. Its like those things plumbers use to check inside your pipes. You can stick it into the spark plug holes and see if anything is in there.
Now that you have oil to the rockers, I think we can rule that out as the problem. I'd lean towards the something fell in the engine theory at this point. If you can see it with the boroscope you might get real lucky and be able to fish it out witout a major teardown.
Paul
Now that you have oil to the rockers, I think we can rule that out as the problem. I'd lean towards the something fell in the engine theory at this point. If you can see it with the boroscope you might get real lucky and be able to fish it out witout a major teardown.
Paul
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Guys, I've been listening to this. I think I'm screwed. Sounds like a bearing is spun/rod knock. It is coming from the lower end. I played a little hookey from work today and fked with the car. I'm resigned to the fact I probably need a rebuild.
I'm kicking myself wondering if it is coincidence or if I did somehting stupid. As I thought about it the oil pressure fluctuated for a couple seconds down to zero and back up. I chalked it up to the system re priming itself. It was brief and inconsistent.
I am kicking myself pretty hard right now.
I went to a local, respected builder and we're looking at more than $2K, but less than $3K. Seems stroking it would be more $$$
The other option is Scoggin Dickey has a 383 bottom end I can just drop in.
http://www.sdparts.com/product/12499...eAssembly.aspx
I'm kicking myself wondering if it is coincidence or if I did somehting stupid. As I thought about it the oil pressure fluctuated for a couple seconds down to zero and back up. I chalked it up to the system re priming itself. It was brief and inconsistent.
I am kicking myself pretty hard right now.
I went to a local, respected builder and we're looking at more than $2K, but less than $3K. Seems stroking it would be more $$$
The other option is Scoggin Dickey has a 383 bottom end I can just drop in.
http://www.sdparts.com/product/12499...eAssembly.aspx
Last edited by jsup; Apr 14, 2008 at 05:16 PM.
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Guys, I've been listening to this. I think I'm screwed. Sounds like a bearing is spun/rod knock. It is coming from the lower end. I played a little hookey from work today and fked with the car. I'm resigned to the fact I probably need a rebuild.
I'm kicking myself wondering if it is coincidence or if I did somehting stupid. As I thought about it the oil pressure fluctuated for a couple seconds down to zero and back up. I chalked it up to the system re priming itself. It was brief and inconsistent.
I am kicking myself pretty hard right now.
I'm kicking myself wondering if it is coincidence or if I did somehting stupid. As I thought about it the oil pressure fluctuated for a couple seconds down to zero and back up. I chalked it up to the system re priming itself. It was brief and inconsistent.
I am kicking myself pretty hard right now.
Unless the bearing FELL OUT, which is almost impossible. It would have exploded.
-- Joe
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Oh, it's definitely mechanical. If you put your hand on top of the super ram you can feel it through the block. It's hard.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
After spending more time with it today, and getting another set of ears on it, I am not optimistic.
Drifting
Joined: Nov 1999
Posts: 1,502
Likes: 12
From: Yorktown Heights NY
Damned, what a story, was hoping for a happy ending though 
Just couldn't stop reading all the posts!
Good luck, and please let us know what it is
Dumb question, but why didn't you loosen all the lifter adjusting nuts to totally eliminate valve train noise.....judt think, if that makes it go away, then you know it's probably an overtight or stuck lifter.
A totally toasted rod bearing could cause enough pressure leakage into the pan to prevent lifter pump up....
Yup, lossen the lifters, spin one more time, if still noisy definately pull the pan...
Again, good luck, I've been there
Just couldn't stop reading all the posts!
Good luck, and please let us know what it is
Dumb question, but why didn't you loosen all the lifter adjusting nuts to totally eliminate valve train noise.....judt think, if that makes it go away, then you know it's probably an overtight or stuck lifter.
A totally toasted rod bearing could cause enough pressure leakage into the pan to prevent lifter pump up....
Yup, lossen the lifters, spin one more time, if still noisy definately pull the pan...
Again, good luck, I've been there
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
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
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Damned, what a story, was hoping for a happy ending though
Just couldn't stop reading all the posts!
Good luck, and please let us know what it is
Dumb question, but why didn't you loosen all the lifter adjusting nuts to totally eliminate valve train noise.....judt think, if that makes it go away, then you know it's probably an overtight or stuck lifter.
A totally toasted rod bearing could cause enough pressure leakage into the pan to prevent lifter pump up....
Yup, lossen the lifters, spin one more time, if still noisy definately pull the pan...
Again, good luck, I've been there
Just couldn't stop reading all the posts!
Good luck, and please let us know what it is
Dumb question, but why didn't you loosen all the lifter adjusting nuts to totally eliminate valve train noise.....judt think, if that makes it go away, then you know it's probably an overtight or stuck lifter.
A totally toasted rod bearing could cause enough pressure leakage into the pan to prevent lifter pump up....
Yup, lossen the lifters, spin one more time, if still noisy definately pull the pan...
Again, good luck, I've been there
I am expecting a trashed bearing.
Anyone in northern NJ wanna come pull a motor out?
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Race Director
Joined: Aug 2000
Posts: 14,130
Likes: 7
Cruise-In II Veteran
Guys, I've been listening to this. I think I'm screwed. Sounds like a bearing is spun/rod knock. It is coming from the lower end. I played a little hookey from work today and fked with the car. I'm resigned to the fact I probably need a rebuild.
I'm kicking myself wondering if it is coincidence or if I did somehting stupid. As I thought about it the oil pressure fluctuated for a couple seconds down to zero and back up. I chalked it up to the system re priming itself. It was brief and inconsistent.
I am kicking myself pretty hard right now.
I went to a local, respected builder and we're looking at more than $2K, but less than $3K. Seems stroking it would be more $$$
The other option is Scoggin Dickey has a 383 bottom end I can just drop in.
http://www.sdparts.com/product/12499...eAssembly.aspx
I'm kicking myself wondering if it is coincidence or if I did somehting stupid. As I thought about it the oil pressure fluctuated for a couple seconds down to zero and back up. I chalked it up to the system re priming itself. It was brief and inconsistent.
I am kicking myself pretty hard right now.
I went to a local, respected builder and we're looking at more than $2K, but less than $3K. Seems stroking it would be more $$$
The other option is Scoggin Dickey has a 383 bottom end I can just drop in.
http://www.sdparts.com/product/12499...eAssembly.aspx
I know thats guessimation but until you know for sure,theres not a real price you can attach.Hope you find out what it is soon.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Because I'd have to do the entire bottom end. I know it can be done in the car, however, until I isolate the specific problem, I can't know why this is happening. The root cause of the problem, and if it can happen again. The guys who work on my car won't do an in car replacement of one bearing.
If I'm going to take it that far, I'm going to get it done completely, and done right.
I will re use the rods based on how they measure, maybe even the piston based on what I find.
I'm getting ahead of myself....we'll see what it is tomorrow. I hope.
Safety Car
Joined: Jan 2006
Posts: 3,566
Likes: 4
From: Mt Laurel NJ
St. Jude Donor '06-'07
Guys, I've been listening to this. I think I'm screwed. Sounds like a bearing is spun/rod knock. It is coming from the lower end. I played a little hookey from work today and fked with the car. I'm resigned to the fact I probably need a rebuild.
I'm kicking myself wondering if it is coincidence or if I did somehting stupid. As I thought about it the oil pressure fluctuated for a couple seconds down to zero and back up. I chalked it up to the system re priming itself. It was brief and inconsistent.
I am kicking myself pretty hard right now.
I'm kicking myself wondering if it is coincidence or if I did somehting stupid. As I thought about it the oil pressure fluctuated for a couple seconds down to zero and back up. I chalked it up to the system re priming itself. It was brief and inconsistent.
I am kicking myself pretty hard right now.
Sorry to hear of all this John. It would be nice to understand what happened. I know if it were me, I would be pulling my hair out. Maybe you'll still get some good news...
Randy
Safety Car
Joined: Dec 2007
Posts: 3,616
Likes: 5
From: Sandhills of North Carolina
Back in '74 I had a GMC pickup. 350 in it. I tightened up a belt to tight and the front main spun. Knocked like crazy under a load and you could hear it a idle. OP was very low. The truck only had like 30K on it. I dropped the pan and used plastigauge to check the clearance (that stuff still around?). Got a oversized bearing stuck it in and put over 145K on the truck (speedometer cable broke around then) before getting rid of it. It hauled several boats during it's life.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Thanks guys.
The car is now on the lift and in the hands of a very competent mechanic, and we are not optimistic.
He's pulling the pan to see what is up.
Perhaps Pics later.....
The car is now on the lift and in the hands of a very competent mechanic, and we are not optimistic.
He's pulling the pan to see what is up.
Perhaps Pics later.....
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Just got back from the shop. They let me work on the car with them, they're good guys.
Id does not appear any of the rods are loose, whew...but he's dropping the flex plate as we speak.
No news yet.
It sucks that I don't have the time to do this myself, but better to have a car that I can drive than is sitting in the dam garage.
I should know by tomorrow.
Id does not appear any of the rods are loose, whew...but he's dropping the flex plate as we speak.
No news yet.
It sucks that I don't have the time to do this myself, but better to have a car that I can drive than is sitting in the dam garage.
I should know by tomorrow.