Possible engine failure.
Thread Starter
Intermediate
Joined: Jan 2024
Posts: 38
Likes: 15
From: Jarrell, TX
Finally got the motor out last week and that’s the impact of the dropped valve. New motor will be here today. Going through the parts list the only component I can’t find is the throwout bearing. Everything I search seems to comeback with slave cylinder? Putting the new (used) engine in I wanted to replace pilot, rear seal, clutch, and throwout. Anybody know what part number the throwout is or is it replace the entire slave cylinder. Clutch is being replaced with the McLeod.
Race Director
Joined: Jul 2015
Posts: 16,010
Likes: 2,696
From: Frisco, TX
Thread Starter
Intermediate
Joined: Jan 2024
Posts: 38
Likes: 15
From: Jarrell, TX
The entire slave to release bearing is all I’ve found. I’m assuming you just can’t replace the release bearing on its own.
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
If you haven't already, I Strongly recommend you pull the oil lines and the dry sump tank. All will need to be flushed. Ditto if you have the oil cooler located by the filter (or anywhere else for that matter). Basically all oil lines need to be flushed or replaced.
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
One other thing....if the clutch you plan to install is significantly lighter (ie 20lbs sort of thing) than stock, it'll affect the tune. Gen V is a torque based tune and the loss of rotating mass can give the tune fits. I have an aluminum flywheel and lightweight setup on mine (40+lbs lighter than OEM) and getting the last 0.1% of the tune dialed in has been a PIA.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
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
Thread Starter
Intermediate
Joined: Jan 2024
Posts: 38
Likes: 15
From: Jarrell, TX
Thread Starter
Intermediate
Joined: Jan 2024
Posts: 38
Likes: 15
From: Jarrell, TX
New (used) engine in and it runs smooth. Only major issue now is the permanent DTCs that haven’t disappeared yet so still have the check engine light. Only driven about 130 miles so far. I’ll keep it going until it resolves. One thing picked up was the fuel rails between the 14 and 17 years. My original 14 used a 4 wire plug in when going to the fuel sensor. The 17 used a 3 wire. Initially after the engine install I had a huge stall in trying to start. After I switched out the sensor and wire bundle on the fuel rail it fired right up.
Thread Starter
Intermediate
Joined: Jan 2024
Posts: 38
Likes: 15
From: Jarrell, TX
One other thing....if the clutch you plan to install is significantly lighter (ie 20lbs sort of thing) than stock, it'll affect the tune. Gen V is a torque based tune and the loss of rotating mass can give the tune fits. I have an aluminum flywheel and lightweight setup on mine (40+lbs lighter than OEM) and getting the last 0.1% of the tune dialed in has been a PIA.
Good to know. Which clutch setup did you end up running.
Heel & Toe
Joined: Feb 2023
Posts: 17
Likes: 9
Mike, I admire you for a job well done, just know you will love this car more than ever, you opened up her heart, did the surgery and now you know your car better than 99% of Corvette owners. Enjoy the pride you now have.
Burning Brakes
Joined: Jan 2011
Posts: 1,062
Likes: 291
From: Allyn WA
Apologies I did leave out one important key maybe someone in here has heard of. While driving I’ll lost the power to accelerate. Foot on pedal with any pressure and no feedback from the engine. Just had to coast over to the shoulder. No drop in oil pressure no metal clanking.