I have seen pads fall out from rotors wearing out. I saw a Holden that was Ok on one side of the rotor and the other side was through the cooling fins. But it still worked Ok!

have you seen how thin std cooper disc rotors are???

or how`s about nearly all motor bike brake rotors

heat is the bad boy with regards to thin rotors & yes distortion & cracking occurs more easilly & earlier on thinner rotors

Razor rang me the other day & we sorted a few things over the phone, which was obviously enough to get him going but yes it really does need a good eye ball & diagnose to make sure he`s a safe little bunny rabbit

maybe this week we can sort some time for you Razor

cheers & thanks for the thankyou & you`re most welcome
Matt

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

Most of the cracked rotors that I have seen have always been fairly new and fairly thick. They need to be seasoned before hard use.

lmao morris. yeah just slap another pads on she'll be right.

and hang a sec there miniman remember a mini is only 600kgs. the brakes in the cooper were more then enough braking power and even thought they generate heat probably not as nearly enough then are car that weighs 800kgs with a 1.5ltr engine

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oil leak?..what oil leak..that puddle under the car is just sweat from all that horsepower

When the original Cooper came out disc brakes were still fairly new and there were a lot of things to learn. They didn't know much about wear or thickness over the long term. The Cooper brakes were better than the single leading shoe drums of the Mini 850 but they were no better than the twin leading shoes of the Mini Deluxe.

It was when they re-designed the disc brakes for the Cooper S that they finally made good brakes.

sorry i should of be specific cooper s i meant

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oil leak?..what oil leak..that puddle under the car is just sweat from all that horsepower

Yes Matt patiently helped me the other day on how to bleed the brakes PROPERLY
very very clear and helpful
If it wasnt for Matt I would've used a different car for the wedding.
Thank you again

If I cant get it sorted myself its for sure going to the mini pro (Matt)

I just quickly asked about the rotor thickness as I've got a spare good rotors.
I dont think its air in the system as the pedal travel doesnt get any better if you pump it.

Matt cant do this week as I'll be flying to The Bahamas for my honeymoan

That means you can take the workshop manual for some light reading. The girl will be impressed with your technical prowess.

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

better still he could take a carbie to rebuild - something to do sitting up in bed at night - could teach the new wife how to do it so next time he could get on with something else.

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David L


My greatest fear in life is that when I die my wife will sell my Mini and tools for the price I told her I paid for them!

ooooh, you guys are looking at getting a good bitch slapping from his missus

hee hee, no worries Rob, let me know when you`re ready & we`ll have them stoppers workin perffffff

& tinymorris,,, that`s why i typed "Cooper" & not "S" no drama, i still reckon the "S" brakes aren`t good enough either,,, but that`s only meant as not good enough for me & half the other mini race cars around the world,,, they are well & truly good enough for the average Joe/Jane driving their """700-750"""kgs minis & mokes around town, no problems there,,, & the fact that later on in the scene the factory up graded the size to the 8.4 inch assys are even better,,, & then vented 4 pots became std,,, Hhhmmmm

now big thick vented & grooved 10inch jobs with hard alloy mounting bell/hat with 6pot titanium calipers would be my choice for a "Fair" set up


now just imagine those early cooper pads, at the size of a fity-cent piece,,, how hot do you reckon they got when the old guys were racing around all those international rallys in the good old days... it`s all good & well talking about how well they worked compared to 850 brakes & how thick the rotors are & how well they withstand the heat etc etc,,, but really,,, brake pads the size of a fifty cent piece?????????,,,,,,,, within 2 corners of hard braking & the poor things have fried the glue & resins & everything out of themselves,,,, & the brake pedal becomes like an accellerator



morris1100 is dead right (as usual) ,,, they didn`t know much about disc brakes back then,,,, but now they do

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

The other thing to look at is the tyres that they had back then. It would have been quite easy to reach the maximum grip limit under braking when you had Cooper discs and 3½" wide cross ply tyres.
If you have 5" wide wheels with sticky rubber you can easily use twice as much braking power.

Yep!
8.4" discs fitted with EBC green pads and 145 bridgestone tyres are a good example of braking far exceeding the tyres capabilities ...

Without having 165 tyres, it's hardly worth it. Kind of goes a long way to explaining why early mini brakes were so woeful compared to modern setups. the tyres were craptacular, so any investment in larger brakes reach the limits of the tyres a 3rd of the way down the pedal's travel. Like mine.

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.