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== Z31 Clutch System Issues ==  === Inspecting the Clutch Hydraulic System === The first step is to locate the source of the leak. Start with the '''clutch master cylinder''', which is mounted next to the brake master cylinder on the firewall. It's smaller, but operates in a similar way. Check around the firewall and also inside the driver’s footwell—worn internal seals may leak into one or both areas. https://dev.z31library.com/xenonzcar_archive/z31/images/clutchsystem/Master.jpg The second place to check is the '''slave cylinder''', located under the car on the passenger side of the transmission. Inspect the small rubber boot for moisture—if it’s wet with fluid, the slave cylinder needs to be replaced. https://dev.z31library.com/xenonzcar_archive/z31/images/clutchsystem/slave.jpg When one cylinder fails, the other often isn’t far behind. It's strongly recommended to '''replace both the master and slave cylinders as a pair''' to avoid future issues. One more component to be aware of: Nissan installed a '''clutch fluid dampener''' between the master and slave cylinders. This was designed to soften clutch engagement feel. https://dev.z31library.com/xenonzcar_archive/z31/images/clutchsystem/dampener.jpg Many Z31 owners choose to remove the dampener for improved clutch pedal feel. A popular mod is to replace the dampener with a '''rear outer brake line from a 1982 280ZX (S130)'''. This not only eliminates the dampener but also simplifies the bleeding process by reducing components. https://dev.z31library.com/xenonzcar_archive/z31/images/clutchsystem/hose.jpg 1982 280ZX Rear Outer Brake Line – Replaces Clutch Dampener
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