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Suitable for all applications from 850cc to hot street 1275cc engines. This clutch disc meets or exceeds all original equipment manufacturer specifications.
Classic Austin Mini disc clutch standard pre-verto

Classic Austin Mini disc clutch standard pre-verto

Classic Austin Mini disc clutch standard pre-verto
Part No: GCP204
$91.95
Qty:
Fits the following:
Classic Mini
Alternate Products
Classic Austin Mini Clutch Disc For Rally Performance, Pre-verto
$123.95 Classic Austin Mini Clutch Disc For Rally Performance, Pre-verto
Classic Austin Mini Rally Clutch Disc
$262.95 Classic Austin Mini Rally Clutch Disc
Suitable for all applications from 850cc to hot street 1275cc engines. This clutch disc meets or exceeds all original equipment manufacturer specifications.
 
 
Question:
I would like to know how critical is the distance washer under the driving straps that are bolted through the spring housing to the flywheel on my pre veto clutch. see chapter 5 ,page 120, Fig. 5.7 Haynes manual on the classic Mini
Answer:

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. If this is not done, clutch slip is inevitable. If using a pressure plate of unknown history, it is IMPERATIVE the clutch drive straps are set at the correct height. Many get this wrong and end up with a slipping clutch for some seemingly unfathomable reason. The following should also be carried out if the flywheel has been machined, or is also of unknown history:

 

-         Place the pressure plate 'horns' upper-most on something to hold it off of the work surface but not interfere with clutch plate of flywheel

 

-         Place the clutch plate in position, with the protruding primary gear spline boss on the underside facing the work surface

 

-         Place the flywheel in position

 

-         If the drive straps are holding the flywheel up, or are under tension pressing on the pressure plate 'horns', more spacer-washers/shims are needed between the drive straps and flywheel

 

-         If there's a gap between the drive straps and pressure plate horns, the spacing between the straps and flywheel needs reducing

 

-         If no drive straps are fitted, using a straight edge or drive strap fitted to one of the horns, measure the existing gap between flywheel surface and underside of straight edge/strap, and make suitable spacers to this measurement

 

-         Where extra drive straps are fitted, as in racing (3 on each location instead of the original two), it is essential to machine the thickness of the drive strap off of each pressure plate 'horn' and spacer to regain correct diaphragm clamping action to avoid clutch slip

 

The idea is to set the straps so that when they are in their 'as assembled' position, they are neither under tension, nor well clear of the pressure plate horns. They should be JUST touching. Under tension the clutch will slip due to decreased clamping pressure. Too far clear may cause disengagement problems.

 
 
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