BITS Jan 2016 PR

Saab 9-3/Vauxhall F13/17/18 (Luk Plastic Version) £64 .95 645 72 0040 24422061 Concentric Slave Cylinder Vauxhall 1.9CDTI, Fiat 1.9JTD £50 .95 645 72 0080 55558917 Vauxhall Vectra 05>, Saab 9-3 02> £50 .95 645 72 0060 24422064

Vauxhall Astra/Vectra/Zafira, Saab 9-3/9-5 £60 .95 645 72 0010 24422062

When completing a clutch/CSC change on any vehicle it is good practice to adopt the procedure listed below. When you remove the U clip to detach the bleed nipple union from the CSC pipe, (this is the pipe that protrudes from the gearbox), you must check to ensure that the old seal is not still inside the bleed nipple T piece – if the old seal is still inside it must be removed - check the end of the old pipe, if the seal is not on the end of the pipe then it is trapped inside the union. Get a torch. Get a pick and get it out. Problem: The Concentric Slave Cylinder (CSC) rubber washer (TOP HAT) trapped inside the T piece with the bleed nipple Result: Burst/Broken CSC, fluid leaks, non-working clutch CLUTCH CLINIC

0845 603 3636 Over 200 Branches Nationwide Check the end of the old pipe, if the seal is not on the end of the pipe then it is trapped inside the union. Get a torch. Get a pick and get it out. Failure to remove this will result in the old seal getting squashed into the union when you fit the bleed nipple unit back on. This will restrict the fluid return flow which in turn means the CSC cannot return correctly. This normally results in over stoke (CSC overthrowing its maximum operating distance) due to the over pressurisation of the hydraulic system, leading to a hard or solid clutch pedal. Many instances of this have been observed where the CSC has burst, cracked or completely exploded, when this happens the “hard pedal” will obviously become soft/non-existent with the resulting leakage. Installers have in some cases fitted 3 or more concentric slaves and destroyed all of these before identifying the cause – which is simply the old top hat washer still trapped inside the union.

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