Clutch line size.

[sfeakes]

Originally Posted by bobinyelm

I just found this thread, and realize that it's apparently NORMAL for the clutches to act MUCH differently hot and cold.

I just got my car going, and on it's second start-and-attempted-drive that I couldn't disengage the clutch hot, yet the next day cold it was perfectly fine.

Is it the Clutch Master Cylinder, or the clutch LINE that is giving the problem? I see this thread deals with the line itself, leading me to believe that IT is the problem?

Also, where did you get the remote reservoir? I assume the stock one has a push-on (not thread-in) reservoir? It's extremely difficult to get to the stock reservoir way up under the fender when cold, but after the engine's been running, forget it!

Bob

I wouldn't say it's normal, But it's a problem the plagues many Cobras. Problem is due to heat. Engine & Exhaust can heat the fluid in the master or the line to a point where it just doesn't work. I tackled the master years ago, many posts about it on this forum.
Early BDR's had the clutch line routed next to the exhaust, (mine was one of these), so that's why I re-routed it.
My master also gave out within the first ~500 miles, so I replaced it with one that has a remote reservoir fitting and used a motorcycle remote reservoir located away from the heat. Changing the master and moving to a remote reservoir made more of a difference than any other modification I've done, and I have tried them all, 3 of 4 different types of heat shields, (puller fans), different slaves etc etc. Plus, makes changing & checking the fluid easy, which is a regular as oil changes on the BDR due to the fluid heating up.
http://www.clubcobra.com/forums/show...028#post775028

This was the original heat shield, but since then BDR and other have made their own version.
http://www.clubcobra.com/forums/show...195#post616195