Yet another LS7 Clutch Issue
Yet another LS7 Clutch Issue Alright, not to beat an old drum, but I have a 1999 camaro ss. I had the LS1 clutch installed along with a shim (.150), a new slave cylinder, and I have a new master cylinder with the drill mod. The car runs fine at pedestrian speeds. Heck, it will light them up in first. Oddly, when I went to run at the track (After over 500 miles of break in), the car would hit 1st and 2nd gear fine, then I'd reach for 3rd, but see the tachometer moving up, but no real forward motion with the car. The same thing could be said of 4th gear. The clutch pedal would return to the top, but I'm fairly certain the slave cylinder is functioning normally, but I think I have clutch slippage issues.
Can anyone let me know some ways I can tackle this? I'd like to keep the clutch as it is new. Could it just need to be bled from the slave cylinder, or do it possibly need the flywheel resurfaced. Any advice would be appreciated.
Thanks
Can anyone let me know some ways I can tackle this? I'd like to keep the clutch as it is new. Could it just need to be bled from the slave cylinder, or do it possibly need the flywheel resurfaced. Any advice would be appreciated.
Thanks
If you shim the slave in wrong it could be slightly holding on the clutch. The higher the gear the more torque is felt up the drive line. What percentage of the clutch travel will release drive?
I'm not really sure. I mean in normal driving it's fine. It could be shimmied wrong. There doesn't seem to be a consensus on whether to shim or not with the LS7. I'll bring it up to the mechanic when I have him look at it on Wednesday.
Shimming is hardly ever necessary and really instead of doing the drill mod just buy new gm master and slave and be done. Far superior to any stock factory installed components in an fbody.
It turns out the mechanic screwed up the install. When he initially installed the clutch he knocked a freezer plug into the oil pan, when he removed the pilot bearing. Apparently when he put in the new freezer plug it wasn't seated properly, and leaked all over the new clutch, thereby destroying it prematurely.
Trending Topics
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 Enthusiast
Joined: Mar 2013
Posts: 503
Likes: 39
Per this article I had the mechanic measure to see if the clutch requires a shim. https://ls1tech.com/forums/manual-transmission/1030815-does-your-clutch-setup-need-shim.html
It did, in fact, require a shim. My understanding is that your clutch will prematurely wear without a shim. I have no issues with clutch engagement off the floor.
It did, in fact, require a shim. My understanding is that your clutch will prematurely wear without a shim. I have no issues with clutch engagement off the floor.
Per this article I had the mechanic measure to see if the clutch requires a shim. https://ls1tech.com/forums/manual-transmission/1030815-does-your-clutch-setup-need-shim.html
It did, in fact, require a shim. My understanding is that your clutch will prematurely wear without a shim. I have no issues with clutch engagement off the floor.
It did, in fact, require a shim. My understanding is that your clutch will prematurely wear without a shim. I have no issues with clutch engagement off the floor.