Has anyone found a clutch slave cylinder that does not leak? I'm on my second OE style sold by all of the Pantera vendors, and it is leaking after approximately 5 months/750 miles of driving. This is getting really old, having to replace them every few months (had the same problem with the master - using a Wilwood now - no problems). Is there a non-Pantera vendor part that anyone has adapted to fit the Pantera??
Thanks!
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I would try a quality slave for the Alfa. Centerline or ATE.
This is the information that was posted in the excel file for replacement parts and equivalent parts:
@Rob Fridenberg posted:Has anyone found a clutch slave cylinder that does not leak? I'm on my second OE style sold by all of the Pantera vendors, and it is leaking after approximately 5 months/750 miles of driving. This is getting really old, having to replace them every few months (had the same problem with the master - using a Wilwood now - no problems). Is there a non-Pantera vendor part that anyone has adapted to fit the Pantera??
Thanks!
Where is the clutch master cylinder leaking from? I just replaced mine and I can't find the leak.
The clutch masters leak at the reservoir joint and the internals start disintegrating immediately. The clutch slave drips from the boot.
I’d call Pantera Performance in Colorado. They used to sell CNC clutch masters but CNC closed up shop a few years ago. Knowing Dennis, he’s either got a stockpile of them or he’s found an alternative.
I don't know what Dennis has but CNC has been closed now for over 10 years as they were right down the street from me.
@Rob Fridenberg posted:The clutch masters leak at the reservoir joint and the internals start disintegrating immediately. The clutch slave drips from the boot.
Mine does not appear to be leaking there or inside of the car. I keep checking under the car, but still can't find the leak. Thanks, and I will have to look a bit harder. I found a place in New York that can rebuild the master cylinder and use new modern parts. I think I will send them my old one.
@panterapatt posted:I don't know what Dennis has but CNC has been closed now for over 10 years as they were right down the street from me.
I won one of those CNC clutch master cylinders at the Pantera Rally in Texas back in 2015. I never used it because I didn't want to cut the original hard line that goes through the trunk. I tried to find an adapter, but it does not seem that there is one.
JFFR,
Do you still have the master?
Regarding clutch masters - Dennis was steering me to a Wilwood as they did not have confidence in the OE style that everyone sells (they have been very helpful and supportive with my clutch system leaks!!).
I am having the same confidence issues with the slaves leaking so I am looking to get away from Pantera vendor parts for anything that involves fluids!
Rob - the only connection to leaking parts is ONE vendor as I understand these threads. I find it hard to believe all the Alfa guys who are using quality parts like ATE or Centerline (also used by the Ferrari crowd) are having this issue. I spoke with 2 alfa vendors and they kind of laughed at me when I brought this up. And worse than all this, multiple Pantera vendors buy from each other. So the problem to me is the manufacturing source IF you buy from any Pantera vendor (and let's face it, there are only 2 at this point). For $50 bucks, I would buy an alfa unit and try it.
Panterapatt - agree 100% - Pantera vendor parts only. The Alfa route is my plan but I'm waiting to hear from the Pantera vendor first. I called Centerline yesterday - he said they probably sell 5 of these slaves per day and hasn't heard of many issues.
Keep us posted Rob - the plot thickens !!!
@husker posted:JFFR,
Do you still have the master?
Yes I still have the CNC clutch master cylinder.
A clutch master cylinder has only 4 parts: an iron body, an aluminum piston, a steel return spring and the RUBBER seal. Replace your cheap neoprene seal with a Viton part and the mostly metal assembly will not leak. My Girling all-aluminum master cylinder was installed in our Pantera in 1981. No problems yet, 'cause it uses a Viton flurocarbon seal (that I added), and I change fluid regularly.
Unless of course the constant use of old brake fluid with significant water in it has rust-pitted the iron bore. The pits will tear any seal and leak. If no yearly change-of-fluid persists, a stainless steel body and an anodized piston will be required. Rebuilders add these at rather high cost. Changing fluid is cheaper....
@Panterapatt - I just order a slave from Centerline - thanks for the info/recommendation.
Keep us posted on the status once your receive and install it Rob!
Maybe this is helpful. I got a brand new clutch slave cylinder (never installed) together with my Pantera when I bought it. I don't know the manufacturer of it. Out of curiosity I disassembled the slave cylinder and I discovered small metal shavings inside the cylinder. I would guess remnants of tapping the inlet thread.
No wonder such a cylinder will start leaking soon after installation.
I suggest to check any new hydraulic cylinder (slave or master) before install.
