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Austin Mini Flywheel Problems
Created: September 11, 2012
When installing a flywheel onto a engine/crankshaft I strongly recommend that you "lap the interface surface" between the flywheel and crank. The objective of this process is to insure an absolute perfect fit on the tapper. If for any reason this is not the case you will probably NOT be able t...
Motor Oils - It Is So Very Misunderstood
Created: August 23, 2011
I think it is time to go over passenger car automotive engine oils in detail. I will be writing several articles to be published soon so I will try to get some of it out here. I feel this is a very general topic for all car owners on this board.
Motor Oils - It Is So Very Misunderstood - part 2
Created: August 23, 2011
I think it is time to go over passenger car automotive engine oils in detail. I will be writing several articles to be published soon so I will try to get some of it out here. I feel this is a very general topic for all car owners on this board.
Mini Mania Crankcase Ventilation Kit, C-2A265
Created: February 03, 2011
This kit provides an internally baffled housing which enables the fuel pump port on the engine block to be used to vent the crankcase. The kit also includes fasteners and gaskets to mount the fitting but does not include a hose fitting and hose.
Detailing The Engine & Under The Hood
Created: January 25, 2011
Did you know a detailed engine increases the resale value of your car?  It's a well-known fact that people who take the time and effort to detail their engines also take better care of their cars.
Created: September 21, 2010
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Longer Connecting Rods in a Mini Cooper
Created: August 05, 2010
Longer rods provide for a longer dwell at piston TDC, keeping the combustion chamber small for a longer period as the expanding gases push against the piston. This extracts more power from a given air/fuel mixture thus increasing combustion efficiency.
VTEC Conversion Kit MTK Installation Manual
Created: March 19, 2009
VTEC Conversion Kit MTK Installation Manual courtesy of MiniMania.com
VTEC Conversion Kit MTB2 Installation Manual
Created: March 19, 2009
VTEC Conversion Kit MTB2 Installation Manual
“BACKWARD COMPATIBILITY” IN NEW ENGINE OILS ?
Created: November 27, 2007
This newsletter is going to cover a recently discovered subject matter of the very most importance to everyone who owns vehicles of any kind, be it, automotive, trucking, construction equipment, etc. The results are in with very dismaying reports concerning the newest API engine oil specifications, SM / CJ-4
Mini Cooper Harmonic Damper
Created: January 25, 2007
MINI Cooper Harmonic damper is designed to balance our the vibrations inherent in all engines. The same theory of operation applies to both Classic and BMW MINI Coopers
Created: January 08, 2007
About a year ago I read about the reduction of zinc dialkyl dithiophosphate (ZDDP) in the oils supplied with API approval that could affect sliding and high pressure (EP) friction in our cars. The reduction of these chemicals in supplied oils was based on the fact that phosphates reduce the effectiveness and eventually damage catalytic converters and introduce minute amounts of pollutants into our atmosphere.
Created: September 22, 2006
Last time we chose a manifold based on flow volumes, and a carbie based on personal choice, but which combination is best on this engine?  With the engine finished, it is time to look at a variety of carburettors, inlet manifolds and exhaust extractors, to fnd the most suitable combination. There are a lot of fgures, but they are necessary, so bear with me.
Project Small Bore, Part 2: Cylinder Head
Created: July 24, 2006
Last time we started building a small-bore engine for maximum power. But there is no point having a good engine and putting the wrong head on it. I'm going to use the 12G202 head, as these are the best to modify for our purposes. They are a bit smaller than the 12G295 or 12G206 heads, which gives you a bit more metal to play with when grinding. As far as a standard head goes, you can't go past the 12G295 or 12G206.
Created: July 21, 2006
We all long for the power and torque available from a 1275cc engine, but with these becoming more expensive and harder to find, we’ll take a look at how to get some decent power from the smallbore engines. Graham Russell of Australia shares his ideas.
Upgrades for Fuel Injected Minis
Created: March 24, 2006
We at Mini Mania have been very satisfied with our experience of being able to help almost any Mini Cooper owners when asked the question ‘How do I make it better’.  With our 30+ years of owning and racing Minis we think we have done almost anything you can imagine.
Spark Plugs Overview Classic Mini
Created: March 08, 2006
The following article was originally found on the NGK web site here. Spark plugs are one of the most misunderstood components of an engine. Numerous questions have surfaced over the years, leaving many people confused. This guide was designed to assist the technician, hobbyist, or race mechani...
DEVES Piston Ring Installation
Created: January 30, 2006
Are Deves Rings Hard to Install? NO! They install just like any other piston rings. To make it easy, we set up the rings and sets in envelopes and boxes.....
ARP Bolts & Fasteners
Created: January 28, 2006
Fastener Retention Overview There are three methods that can be employed to determine how much tension is exerted on a fastener; using a torque wrench, measuring the amount of stretch, and turning the fastener a pre-determined amount (torque angle). Of these methods, use of a stretch gauge is the most accurate.
Created: August 08, 2005
While the ULTRIK VTEC Subframe makes an engine swap easier, there are still several challenges to overcome when installing the Honda engine in your Classic Mini.
Created: August 06, 2005
Complete 1380cc Supercharged Motor Serious Horsepower for the serious driver! Mini Mania has developed and produced the ultimate in bolt-on performance for the A-Series motor. Modern technology in compressors, modern manufacturing and Mini Mania engineering have resulted in serious performance improvements unheard of in A-Series history.
Mini Cooper Supercharger Pulley HP Benefits
Created: December 09, 2003
Mini Cooper Supercharger Pulley HP Benefits
MinComp 1380
Created: August 01, 2003
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Centre Main Cap Strap Fitting Instructions, CMS10
Created: December 05, 2000
This strap is used to give support and strengthen the centre main bearing cap on small-bore engines (850/998/1098cc). It helps counter the problems caused at higher rpm where crankshaft flex (‘whip’) causes the standard cap to move (‘shuffle’) leading to bearing failure and possible breakage of the main bearing caps. In particular, where higher rpm than standard will be the norm – i.e. in excess of 6,000rpm. Especially where this is for extended periods.
Mini Engine Performance Enhancement
Created: June 19, 2000
Standard Minis have always been slower than their handling was capable of. Fortunately, many people have devoted their careers to making Minis go faster. As a result, you can fit your Mini with a double overhead cam 16 valve cylinder head, a turbocharger, and programmable electronic fuel injection.
1275cc A Series Engine Color Schemes, Sprites & Midgets
Created: June 19, 2000
Only engines bearing a 12CC engine no. prefix were painted in British Motor Corporation Engine Green (the color somewhere between sage green and olive green applied to the power units in most BMC motor vehicles, including all the Sprite and Midget variants prior to 1967). This equates to roughly the first year of 1275 production.
Cooper Engine Tuning Data
Created: June 14, 2000
The tables below shows the factory tuning specifications for the various models of Mini Cooper. If your engine is modified, these settings may no longer be valid or provide safe operation of your engine. These specifications are those as given by British Leyland at approximately the end of Mini Cooper S production in 1971.
Cooper Engine Data
Created: June 08, 2000
A comprehensive and detailed table of Mini Cooper engine specifications.
Installing Mini Main Studs
Created: April 10, 2000
On 2" inch main 1275 engines the use of main studs gives a solid improvement over the stock bolts. Factory bolts, at the very best, only have 65% of the clamping force of an ARP stud, and consider that the combination of the firing load and inertia at RPM cause loading's that amount to thousands of pounds. On the 1275 Mini there is something to look out for that doesn't arise on an inline engine. Due to the proximity of the gear box webs at both ends, there is not enough clearance for the nut.
Created: April 07, 2000
When Omega quit making A-Series pistons, Mini Spares took it upon themselves to design and build a better Piston. Recruiting the AE Hepolite Group for their unquestionable and renowned design and manufacturing expertise, the goal was to produce the most robust piston possible given reasonable cost and weight limits. Applying current technological advances incorporating their very latest hi-spec AE109TF lightweight alloy and special double heat treatments, the result is an extremely durable piston that will withstand greater cylinder pressures at higher RPM than any other currently available.
Created: February 15, 2000
"Turbo" main bearings were designed by Leyland’s engineers to meet a perceived need. It was decided probably by both theoretical calculation and practical test that the turbo Metro engine with its increased bearing loads needed a better bearing, so what they did was remove the oil groove from the bottom bearing shell giving roughly 30% more bearing area.
Torsional vibration damper ring 12A367
Created: January 30, 2000
This is designed to fit either the original type Cooper ‘S’ crank ‘V’ pulley or tooth belt water pump drive pulley. Each pulley should be balanced with its respective crank assembly. It is strongly advised that each component should be balanced individually and check balanced as an assembly.
Piston Fact File
Created: January 30, 2000
Over the years, there have probably been a dozen "stock" 1275 pistons. Currently, three different designs are available from AE/Hepolite as "stock" replacements. All have an 8.4cc dished top, but compression ratios are carried by changing pin height (Pin height is the distance from the top of the piston to the center of the wrist pin- see dimension "A" shown here).
Water pump toothed belt drive, C-AEA536
Created: January 30, 2000
This system has been designed and developed for use primarily for racing where a positive drive system is demanded to avoid fan belt loss problems caused by out of line pulleys and ill fitting belts.
Toothed belt drive for charging system C-AEA536A
Created: January 30, 2000
The large alternator/dynamo pulley is driven from the water pump pulley by a separate belt, thus ensuring the vehicle is still driveable should the charging system belt fail as the water pump will still function. Do not over tighten belt. Correct tension is when you can easily twist the belt through 90°.
Sureflow oil pump C-AEG413
Created: January 30, 2000
Being the heart of the engine, it is obviously essential that the pump is in prime condition when fitted. Due to robotised manufacture of the commercially produced pumps, tolerances have been opened up to facilitate rapid production and assembly.
Steel four bolt main cap, C-AGA619
Created: January 30, 2000
This cap has to be line bored and thrush washer faces machined before use. It is uni-directional and must be fitted with the ‘F’ stamped in one side facing towards the front
Steel four bolt main cap set C-AGA621
Created: January 30, 2000
These caps must be line bored and thrust washer faces trued up before use. They are not suitable for ‘S’ blocks. The centre main must be fitted with the ‘F’ stamped in one side facing the front (water pump) end of the block.
Oil Pressure Regulating Kit, HPS4
Created: January 30, 2000
This kit includes a new oil galery plug with an adjustable knob and a washer which is used as a spring seat in the plug against the relief spring. This makes a playform for the adjuster bolt to adjust the engine oil pressure.
Oil Pump information & part#
Created: January 29, 2000
Being the heart of the engine, it is obviously essential that the pump is in prime condition when fitted. Due to robotised manufacture of the commercially produced pumps, tolerances have been opened up to facilitate rapid production and assembly.
Engine Run-in, MINI
Created: January 29, 2000
Installing a new rebuilt engine in your car will give it a major “shot in the arm” in any number of ways. In order to get the most of this change we suggest that you take the time while the engine bay is empty to
Belt drive for charging systems C-AEA536
Created: January 29, 2000
This kit is an ‘add on’ for the C-AEA534 toothed belt water pump drive for the charging system. The large alternator/dynamo pulley is driven from the water pump pulley by a separate belt, thus ensuring the vehicle is still driveable should the charging system belt fail as the water pump will still function.
Engine Stabliz
Lower Engine Stabilizer, MSSK1
Created: January 30, 2000
This kit is designed to greatly improve engine stability on all Minis, and derivatives utilizing the engine and front subframe assembly from the Mini. It is particularly useful on the later rod - change type gearbox
Mini engine stabilizer steady bar, MSSK1300
Created: January 30, 2000
This is an auxiliary steady bar kit and should not be used to replace any other standard fitment parts that have broken. 2.Remove the radiator support bracket from the radiator and the thermostat housing.