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My 1992 six speed manual transmission LT1 Corvette seems to be losing hydraulic clutch fluid from the fill container.
In checking it regularly, I have had to bring it up to full level a few times.
I have noticed that the insulation on the fire wall behind the pedals appears to be wet with it which makes me believe that it is dripping down below the container.
Is there an O Ring/Seal that needs to be replaced or do I need to replace the plastic
holder that I pour the fluid into?
I discovered this while checking for my Clutch safety switch since the first problem was that the car decided not to start one day.
It has been starting and running perfectly and I drove it the day before the no start problem came up.
Being a relatively new Corvette owner, I am new to some of these occurrences and would appreciate any suggestions.
The car has less than 50,000 miles on it.
I have two things to get working now before taking it out in April for hopefully another fun year of Corvette people and driving.
Russ...
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Duncanville, TX - USA
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
It sounds like you master cylinder(for the clutch) is leaking. That would allow the fluid to run down the inside of the firewall. You may be able to find a rebuild kit for the master cylinder, but chances are you won't. GM has discontinued the master, also, so finding one at a dealership will be next to impossible. My suggestion is to use a genuine GM(AC/Delco) master.....trust me on this one...
Be aware that when replacing the master, and slave cylinders, the bleeding procedure is very specific, and may take a loooong time to get it bled properly.
Be aware that when replacing the master, and slave cylinders, the bleeding procedure is very specific, and may take a loooong time to get it bled properly.
Joel Adams
C3VR Lifetime Member #56 
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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Is it the clutch master where I fill the fluid or the Master Cylinder?
I am hoping it would be the Clutch Master since it is cheaper and much easier to get to.
Russ...
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Thank you for the input.
I appreciate some direction on this one.
Russ...
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22715
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
It's the clutch master cylinder, not the brake master cylinder. The name may be confusing, but I meant the clutch master cyl. Not sure on a '92 if the reservoir and the master are one piece, or if the reservoir is separate, and mounted remotely. I'm betting they are separate. The reservoir will be mounted up high, next to the brake booster, with a hose going down to the master.
If you have brake fluid running down the inside of the firewall, where the pushrod for the clutch goes thru, then your clutch master cylinder is definitely leaking.
If you have brake fluid running down the inside of the firewall, where the pushrod for the clutch goes thru, then your clutch master cylinder is definitely leaking.
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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in Forum: C4 Engines, Driveline and Handling
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