Clutch
MINI Cooper F56 Clutch Upgrade questions
Created: November 15, 2018
Since the JCW uses a different clutch from the Cooper S (presumably to handle the added hp), it appears that MINI feels the stock Cooper S clutch is not up to the task.
MINI Cooper Clubman Clutch Upgrade Questions
Created: November 15, 2018
Upgraded clutches are generally intended for MINIs that have performance upgrades - they are designed with higher clamping forces to handle the additional horsepower / torque
Borg&Beck Brand Name
Created: April 20, 2016
Borg & Beck is a name synonymous around the world with high quality clutches. Recently, an American website had the following text.
Classic Mini Flywheel and Clutch Identification
Created: March 08, 2009
Austin Mini flywheel and clutch identification is explained and illustrated with color photos of early vs. later designs.
Primary gear question and answers.
Created: February 26, 2009
Classic Mini Cooper Primary gear clearance question and answer.
Mini Cooper Verto Clutch Information
Created: August 06, 2008
This article has been written owing to the increasing amount of people who call Mini Spares stating that their 1275cc Injection type Mini will not start after fitting a new clutch, especially when they have purchased the parts from another supplier rather than a Mini specialist.
FULLY-FLOATING PRIMARY GEAR BUSH
Created: August 28, 2002
Countless Mini enthusiasts have been dogged by primary gear bush hassles on 1275-based engines - in particular the one nearest the block (the front one.) Worn bushes are expensive and difficult to replace for the DIY-er because they must be machined to the correct size, a job that needs to be done very accurately.
Clutch Checking (Pre Verto)
Created: February 24, 2001
Maybe your Mini clutch is working fine, or the action just doesn’t seem the same, or you're hearing noises you don’t remember hearing before. The following are some quick checks you can do to make sure the clutch keeps operating correctly or to reveal areas that may need some attention.
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.
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'.
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.
Classic Mini Clutch Design and Technical description
Created: February 16, 2000
One of the more common questions asked by Mini owners is "why doesn't my clutch disengage properly?" or "why is it hard to engage gears?" The usual symptom is that the clutch engages right at the floor and you find yourself embedding the pedal in the carpet to avoid grinding gears. Given that the clutch worked properly when the car left the factory the obvious answer is 'wear'.
Classic Mini Clutch Works
Created: January 30, 2000
If I were keeping score, I would have to say that the most common questions on our tech line involve clutch problems. The usual complaint is that the clutch pedal is right on the floor, and the common belief is that the problem can be remedied by replacing the clutch disc. This is not the case!