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Concentric Slave Cylinder Installation

Aside from the fact that CSC’s are (like the clutch and flywheel) are naturally subjected to wear and tear, most CSC failures take place during or immediately after either fitting or bleeding. Proper installation of CSC is a must. Here are important notes.

 

 DO These WHY
Refer to the vehicle’s original manufacturer CSC installation and bleeding procedure. Use the specified hydraulic fluid and follow the manufacturer’s instructions for tightening torques of the CSC. While CSC installation may seem to be generic procedure, recommended procedures and hydraulic fluids ensures compatibility and lessens the likelihood of installation errors.
Clean old gasket (or replace with new), dust off connection areas and clean the input shaft on the transmission and inspect for excessive wear. Dirt deposits can lead to assembly errors.
Completely replace damaged CSC Repairing a damaged CSC is impossible. It is highly recommended to replace CSC when replacing the clutch or removing the transmission to avoid costly repairs shortly afterwards.

 

 DO NOT Do These WHY
Do not use any lubricants or cleaning agents. Some chemicals may damage gaskets and or the entire cylinder.
Do not rapidly depress the clutch pedal. Do not use a pressure bleeding device unless recommended by the vehicle’s original manufacturer. This may lead to overstroking, which happens when the system either rapidly bleeds or the pedal stop is missing. This causes the bearing to exceed its normal operating stroke which will damage the CSC end seal, causing a hydraulic leak. Pro Tip: Depress once, release pedal and wait for the hydraulic system to stabilise. Repeat depressing procedure as required until pedal feel is gained.
Do not manually compress the CSC. This can cause damage to the internal seals.

 

Incorrect fitting, bleeding, and installation of CSC will lead to seal and clutch damages. It is important to follow the original manufacturer’s installation instructions for best CSC and clutch care.