Need Help Replacing the Clutch Master Cylinder

[Vman]

I need to replace my Clutch Master Cylinder, I don't see a DIY on that one and the old workshop manual only shows how to replace the Clutch Slave Cylinder. Please Help.

VMAN

[Loren]

The only place I have seen it discussed is in the clutch pedal R&R section.

[Mother]

I need to replace my Clutch Master Cylinder, I don't see a DIY on that one and the old workshop manual only shows how to replace the Clutch Slave Cylinder. Please Help.

VMAN

If you are takling about the one on the tranny it's easy just remove hydraulic line then the 2 bolts holding it on the tranny (from back of car it will be 2 Oclock position right side) pull out then replace new one and reconnect every thing and rebleed by following instruction in the brake bleeding DIY section. Good Luck

[Vman]

I need to replace my Clutch Master Cylinder, I don't see a DIY on that one and the old workshop manual only shows how to replace the Clutch Slave Cylinder. Please Help.

VMAN

If you are takling about the one on the tranny it's easy just remove hydraulic line then the 2 bolts holding it on the tranny (from back of car it will be 2 Oclock position right side) pull out then replace new one and reconnect every thing and rebleed by following instruction in the brake bleeding DIY section. Good Luck

I am referring to the clutch master cylinder located in the the clutch pedal array, the old 911 manuals (84-89) had measurements and such you had to set the master cylinders up to match before reinstalling, I can't believe Porsche left out of their manual how to replace the thing, unless it now self adjusts. In the pedal R&R section of the manual I have it does not discuss what to do if you have to disconnect the clutch master cylinder from the hydraulic system, I assume you have to first pinch the hose, or drain the brake fluid reservoir, then disconnect....I could measure the one that is broken to see if their is any adjustment on it, and then reconnect, but seems like a lot of guess work.

Vman

[KevinC]

I need to replace my Clutch Master Cylinder, I don't see a DIY on that one and the old workshop manual only shows how to replace the Clutch Slave Cylinder. Please Help.

VMAN

If you are takling about the one on the tranny it's easy just remove hydraulic line then the 2 bolts holding it on the tranny (from back of car it will be 2 Oclock position right side) pull out then replace new one and reconnect every thing and rebleed by following instruction in the brake bleeding DIY section. Good Luck

I am referring to the clutch master cylinder located in the the clutch pedal array, the old 911 manuals (84-89) had measurements and such you had to set the master cylinders up to match before reinstalling, I can't believe Porsche left out of their manual how to replace the thing, unless it now self adjusts. In the pedal R&R section of the manual I have it does not discuss what to do if you have to disconnect the clutch master cylinder from the hydraulic system, I assume you have to first pinch the hose, or drain the brake fluid reservoir, then disconnect....I could measure the one that is broken to see if their is any adjustment on it, and then reconnect, but seems like a lot of guess work.

Vman

The Bentley Boxster Service Manual describes the clutch master cylinder R&R. I assume the procedure for the 996 would be the same. It's pretty simple: 1) Drain brake fluid reservoir. 2) Disconnect fluid supply line and line to slave cylinder (done from front of firewall, next to battery). 3) Remove clutch rod retaining pin from clutch pedal. 4) Remove master cylinder mounting bolts, slide master cylinder down and out. 5) Re-install, refill reservoir and bleed clutch hydraulics. There doesn't seem to be any adjustment required.

[smithk3933]

Just curious what do you sense when the master cylinder fails or has a problem.

[Vman]

I need to replace my Clutch Master Cylinder, I don't see a DIY on that one and the old workshop manual only shows how to replace the Clutch Slave Cylinder. Please Help.

VMAN

If you are takling about the one on the tranny it's easy just remove hydraulic line then the 2 bolts holding it on the tranny (from back of car it will be 2 Oclock position right side) pull out then replace new one and reconnect every thing and rebleed by following instruction in the brake bleeding DIY section. Good Luck

I am referring to the clutch master cylinder located in the the clutch pedal array, the old 911 manuals (84-89) had measurements and such you had to set the master cylinders up to match before reinstalling, I can't believe Porsche left out of their manual how to replace the thing, unless it now self adjusts. In the pedal R&R section of the manual I have it does not discuss what to do if you have to disconnect the clutch master cylinder from the hydraulic system, I assume you have to first pinch the hose, or drain the brake fluid reservoir, then disconnect....I could measure the one that is broken to see if their is any adjustment on it, and then reconnect, but seems like a lot of guess work.

Vman

The Bentley Boxster Service Manual describes the clutch master cylinder R&R. I assume the procedure for the 996 would be the same. It's pretty simple: 1) Drain brake fluid reservoir. 2) Disconnect fluid supply line and line to slave cylinder (done from front of firewall, next to battery). 3) Remove clutch rod retaining pin from clutch pedal. 4) Remove master cylinder mounting bolts, slide master cylinder down and out. 5) Re-install, refill reservoir and bleed clutch hydraulics. There doesn't seem to be any adjustment required.

Thanks that is helpful

[Red Aero]

Just curious what do you sense when the master cylinder fails or has a problem.

Usually, the pedal feel is lighter but makes it hard for you to shift. :)