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C-AJJ4004 New road-use front anti-roll bar

This bar has been developed to complement those road cars fitted with post 1990 rubber springs. Being the softest compound yet used on the Mini in an attempt to improve comfort, they allow more body-roll. This bar will not only reduce body-roll, but also slightly reduce dive under braking and squat under acceleration. The bar is aimed at the general daily driver. For more progressive drivers it is highly recommended that its used in conjunction with rear anti-roll bar kit C-AJJ4009. By testing various settings its possible to attain a very well balanced fast road car with improved steering response to compliment the other advantages of these bars. It is made to only fit the standard diameter/dimensioned tie-rods.

SUSPENSION - Terminology

Glossary of terms used in the suspension on the mini. The Mini has consistently more than proven its capability in competition with very limited and cost-effective modifications based on the standard equipment fitted. Having first ensured the bodyshell (in reality little more than a complex bracket to hold suspension and driver securely in place) is well sorted out by removing all cruddy or rotten metalwork and into something like straight, square and strong we, maximising suspension stability and geometry pays dividends in the enjoyment that is driving a Mini. Understanding what the individual ingredients are helps in pursuing what you want from the experience. Smooth Mover Good, reliable, and consistent handling is dependent on a number of factors. At this stage, we’re concerned with clapped out or badly adjusted suspension components. Stiff, seized, partially seized or slack, sloppy, worn out suspension components will cause inconsistent, wayward, confusing and – more important

SUSPENSION - Basic Priorities

Suspension - Basic priorities for improved suspension performance. Having studied the 'Suspension - Terminology' article you should now have a ‘job description’ understanding of previously possibly un-comprehended words associated with suspension control. Now - what to do with it? The first thing we need to establish is an order of priority before distributing hard-earned 'beer vouchers' in all directions. Fortunately, this is a good deal less complicated than is generally believed. Despite the five main factors that control the front suspension geometry – kingpin inclination, caster angle, camber angle, track, and bump-steer – we are only really able to alter three of those easily. King-pin inclination is non-adjustable, as it’s a feature of where the swivel-pins are mounted on the hub at the factory. It will alter as other adjustments are made, but we can do nothing easily about correcting/optimising it independently, as these are fixed in position on the swivel hub.

What you actually need for the disc/drum conversion is pretty straightforward. Disconnect the steering arms, top and bottom swivel-pins, CV joint, and flexible brake pipes at the subframe - that’s it. There are, however, a number of ancillaries to consider.

Basics

Basics Fitting discs designed for the Mini is easy enough. Just make sure you use CV gaiters for the disc-brake set-up - these have a different bellows shape to stop the gaiter rubbing the inside of the hub. The drum type will rub, then split, shedding grease all over the place. Moly grease is mighty mucky stuff to deal with and doesn't assist braking at all! A tip for racers - to stop the gaiters over-expanding when getting very hot and imitating the aforementioned, put either a decent sized split pin or (my favorite) a piece of very small bore pipe - as in the type supplied with WD40 aerosols, etc. - under the retaining strap on the drive shaft. This allows air to escape and return,

Brakes - Fundamental Considerations

When looking to increase their cars performance, most folks immediately turn to considering higher engine power outputs. Because of this pre-occupation brakes tend to slide down the improvements priority list. However, they are far more important - being able to accelerate at warp speed to hyper-space in the twinkling of an eye is all very well, but disastrous if you can’t stop. You will make a very big hole in the scenery, and possibly end up wearing an wooden over-coat. Getting the braking system sorted out can help to make the car quicker, as you will be able to more confidently, therefore maximising speed in any given situation. Being one of those ‘sciences’ used in the automotive industry I hope to shed some light on the subject as it's another of those where many questions from confused and mislead folks that clog up my e-mail board. The advent of the Metro, and the brakes used on it has spawned a lot of activity in this direction. It was soon discovered that they could b

Brakes - Pipe End Flares

One day I'm going to have to try and assess just how it is that every now and again I get a 'run' on folks asking me about a specific problem. These problems exist all year round, year in, year out. And said problems crop up throughout the year. But - every now and then there's a blood-rush on a certain issue. Just recently that issue has been brake pipe ends. The bit that seals the pipe off against it's relevant fitting. There are two types of end - male and female. The male end is convex in shape, the female concave. The male end is used where a male pipe union (nut) is used on the brake pipe - that's a nut with an external thread - that will be screwed into a female fitting such as found in a wheel cylinder or master cylinder. The female end is used where a female pipe union (nut) is used on the brake pipe - a nut with an internal thread - and will be mated to a male fitting such as found on rear flexible brake pipes. Under no circumstances should you mix the too up as the brake p

GEARBOX - How they work

Having decided on or even implemented a course of action to bolster the performance of your Mini’s engine, maximising it’s potential should encompass a good look at the gearbox.

GEARBOX - How they work

Having decided on or even implemented a course of action to bolster the performance of your Mini’s engine, maximising it’s potential should encompass a good look at the gearbox.

What they don’t tell you in the manual! Terminology - FD - Final Drive (diff ratio) What they don’t tell you in the manual! If you’ve decided the FD fitted isn’t what you want, changing the FD is possible without separating the engine from the gearbox. Removing the diff case will allow you access to the diff assembly to change the crown-wheel, and access to the gear-change linkage. Use a manual for crown-wheel replacement. While you’re in there it would be just as well to replace the thrust washers and diff-pin as these are the source of many a gearbox problem. Particularly for up-rated engines where fitment for the competition diff-pin is highly recommended. Once again, follow the manual here. Now the bit they don’t tell you how to do... Rod-change types - Removal of the speedo drive housing gives access to the pinion retaining nut (1.5”AF socket needed and a long bar). To be able to undo the pinion nut (torqued up to 150lb ft !!) you need to engage two gears - 2nd and 4th - t

A subject worthy of an entire book to explain the whys and wherefores, and also causes much consternation on the part of the transplanter. Terminology - BBU - Big Bore Unit SBU - Small Bore Unit FD - Final Drive (diff ratio) A subject worthy of an entire book to explain the whys and wherefores, and also causes much consternation on the part of the transplanter. Much confusion’s spread over which gearbox has the best ratios, is best to use, and with which FD. For a detailed account on this and covering all gearboxes fitted as standard to the Mini, see the relevant separate articles 'Gearbox - Standard production gearbox types'. Fortunately, when selecting a complete engine and gearbox unit from a Metro, the gearbox will pretty much suit the engine and be easily transplantable whole into the Mini. It shares exactly the same rod-change linkage as the Mini. Difficulties only arise when fitting a rod-change gearbox into a pre-1973 Mini that has the old remote-type gear-change mechan

Having applied Hi-Los and some smart 165/60/12 profile tyre shod12 x 5-inch ally rims, discussions get around to a subject that has cropped up a zillion times in the Knowledge, at shows, my e-mail address, etc. - just why does this combination cause the tyre to hit the front arch?

To be more exact - why does the tyre just rub, twang the plastic arch off, or foul the arch to the point of bending it? Even if the genuine, original fitment 'Cooper' alloy 12-inch rims are used with the 165/60/12 tyres? Well, it's all a question of alignment - either subframe to body or suspension to subframe. When trying to source/cure the problem, many folk have discovered that shim plates have been used between the front panel to subframe teardrop mounting and the subframe - and wonder if the car has been in an accident and been 'fudged', so could be causing the problem.

The application of this drive system maintains very accurate and consistent cam and ignition timing, and minimises valve train noise - desirable advantages that do not diminish with time. The fibreglass reinforced belt all but eliminates the excessive stretch suffered by chain driven systems-even when a tensioner is used.

No Longer Available see C-AJJ3328RACE

The ubiquitous toothed belt cam drive system, originally developed for high performance race engines, is now generally accepted as the norm on all state of the art modern engines.

The application of this drive system maintains very accurate and consistent cam and ignition timing, and minimising valve train noise. Desireable advantages that do not diminish with time. The fiberglass reinforced belt all but eliminates the excessive stretch suffered by chain driven systems - even where a tensioner is used.

FOR USE WITH STANDARD TIE BARS ONLY

This bar has been developed to complement those road cars fitted with post 1990 rubber springs. Being the softest compou

Instruction Sheet (Please read in full before installing anti-roll bar)

The mounting blocks are to be fixed at each end of the bar under the front of the subframe where there is a double thickness of metal close to the forward tie-bar brackets. Loosely assemble the blocks to the bar, one positioned between the locating rings - offer the bar up to the lower front edge of the front subframe.

Jack rear of car up, and place securely on axle stands, positioned to allow maximum access to rear subframe/rear radius arms area. Remove rear exhaust hanger to exhaust clamp or un-hook rubber loop on late type cars. Using suitable saw, cut off centralising tab from bottom center of subframe rear cross member. Remove rear wheels and brake drums. Remove upper most and rear most brake back plate to radius arm nuts and bolts.

FITTING INSTRUCTIONS

Mini oil pumps are susceptible to premature failure caused by excessive large particle contamination of the oil, mainly metallic debris created by the gearbox. The situation is not helped by the oil getting to the pump before being filtered. Mini Spares has developed components to help minimise this problem, including these in line magnetic oil traps. Their design allows easy fitment, as the adapter simply replaces the standard oil pick up pipe blanking plate on the back of the gearbox. It’s position in the oil supply gallery necessitates frequent removal of the trap to clean collected particles out, more so for the filtered version. Failure to do this will cause premature failure of the pump and possibly engine bearings.

There are no hard and fast rules for this periodic maintenance as vehicle usage will determine debris build up. Obviously a carefully driven road car will not need as frequent attention as a race car. Certainly clean it at e...

These rods have been produced to improve car stability when cornering and braking and to facilitate easy adjustment of caster angle. Manufactured from a high-grade material in a much bigger diameter they are less susceptible to bending than the standard items.

This bracket is designed to adjust the rake/height of the steering column and wheel. Incorrect fitment will cause premature wear and damage to steering column and rack, so the following MUST be adhered to.

1. Remove column to mounting bracket shear bolt. If the bolt head has actually been sheared off, this is easily accomplished using a small centre or pin punch, working around the edge of the...

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