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Clutch - Drive Strap Alignment
Created: May 29, 2003
If the pressure plate clutch plate friction face needs re-surfacing, get it machined to clean it up. Make sure the engineering company doing the job records the amount taken off, as the recorded amount needs removing from the tops of the 'horns' that stick up to ensure proper clamping force is achieved.
DIAPHRAGM SPRING - Verto types including injection
Created: December 04, 2000
The Verto/Valeo type diaphragm included the pressure plate in its assembly, much like a 'normal' car set-up. There were originally three diaphragm specifications using progressively stronger springs - small-bore, big-bore, and Metro Turbo, later joined by the type used on the injection cars.
DIAPHRAGM SPRING - Pre-Verto types
Created: December 04, 2000
These are the shallow cone-shaped objects that the release bearing pushes on, with a steel band (disc spring) on the underside that presses against the flywheel. This provides the force on the clutch plate that ultimately passes the torque to the wheels, and is available with different spring rates/tensions dependent on the application.
CLUTCH PLATES - Verto types, including injection
Created: December 01, 2000
There is only one original Verto/Valeo clutch plate and is fashioned more like a ‘conventional’ clutch plate - it has a sprung centre section. Four springs around the centre section of the plate take up shock, and supposedly reduce the likelihood of judder. It was an attempt by Rover to improve the clutch take-up and engagement to make it more like a 'modern' car.
CLUTCH PLATES - Pre-Verto types
Created: November 30, 2000
There are generally three clutch plate types to be concerned with these days - standard pre-Verto, fiber rally/race, and sintered race. Your driving style will be the determining factor on which plate and which diaphragm type you choose.
PRESSURE PLATE- Pre-Verto & Verto types
Created: November 30, 2000
Apart from the very first one that should be avoided at all costs (cast in part no. 2A3509,) there are an astonishing five other types generally available. For high-tech ones see 'Flywheels & Pressure plates - technical advances'.