OMG!
Just swapped my old Sierra master cylinder for a Fiat item (cheapo eBay job) , mounted a remote reservoir (Daihatsu HiJet)
Swapped the vented disks for Sierra solids
Changed the calipers from vented Sierra to solid KA, and treated it to new Mintex 1144's as the greenstuffs I was running were a different shape/size

Just come in from bleeding the fronts

It would have been rude not to give em a prod...so rolled it forwards and gave it a prod...
Nearly broke my nose on the steering wheel, wasn't expecing it to bite quite like that, especially as I had just had a hose on the car to wash the inevitable spillage I couldn't see in the dark

I'm going to have to put a post it note on the steering wheel for its first shakedown after the changes...or fit a thick spongy pad to the pedal

From it needing a healthy prod to get wheels to lock it now feels overbraked from the short tests I just did

Hoping they will soften a little with use
Especially now it starting to get cold and damp!

Master cylinder was 22, now 19 IIRC
Disk diameters are the same
Pad surface area is a little smaller than they were by the looks of it

Pedal pivot/ratio/length is the same.. as nothing got changed other than a de rust and lick of paint

Thought it would be of interest
Seemingly a world of difference for very little outlay

Sierra Solid Disks £5 each
KA calipers - free
hijet reservoir £5
pads £5 - no one else bid so it was 99p and £4 postage
Fiat master cylinder £15

...throwing the battery off the bulkhead and nearly taking my face out on the steering wheel....priceless

Regards
Rob

Any pics of the setup??

I'm in the middle of installing a Fiat non-servo M/C as well, so this is reassuring!

Hopfully mine will improve as well. though I'm keeping the same calipers and disks.

Stu

No pics yet
Got Thursday off so should get a chance to photograpah the pre-winter mods and give it a shakedown

Only just discovered ACF50
Seems to be working well so far
Hopefully it wont get in such a rotten state so fast

Regards
Rob

The master cylinder I got was This one

the blurb from the ad..
BENDIX 132233B

19.05mm

BRAKE MASTER CYLINDER

SUITABLE REPLACEMENT FOR

FIAT PART No 793010

SUITABLE FOR THE FOLLOWING FIAT VEHICLES

WITH BENDIX BRAKES

LEFT HAND DRIVE (UNLESS STATED)

FIAT VEHICLES

SEE DISCRIPTION & CHECK PHOTO & PART NUMBER

AGAINST YOUR MODEL

FIAT PANDA 1000 From Chassis No 6261412

JAN 1985 -- DEC 1992

FIAT PANDA 1000 i.e From Chassis No 6261412

OCT 1987 -- JAN 1993

FIAT PANDA 1100 From Chassis No 6261412

JAN 1993 -- JAN 1995

FIAT PANDA 750 From Chassis No 6223908

JAN 1986 -- JAN 1991

FIAT PANDA VAN 1000 From Chassis No 6261412

JAN 1986 -- FEB 1992

FIAT UNO 1.3 Super Diesel From Chassis No 0038873

LEFT & RIGHT HAND DRIVE VEHICLES

JUNE 1983 -- JAN 1985

FIAT UNO 45 0.9 From Chassis No 0723819

LEFT & RIGHT HAND DRIVE VEHICLES

MAR 1983 -- JAN 1989

FIAT UNO 45 1.0 From Chassis No 0723819

LEFT & RIGHT HAND DRIVE VEHICLES

JUNE 1986 -- JAN 1989

FIAT UNO 45 i.e 1.0 From Chassis No 0723819

LEFT & RIGHT HAND DRIVE VEHICLES

APR 1984 -- JAN 1989

FIAT UNO 55 1.1 From Chassis No 1570529 / 0324161

JAN 1983 -- JAN 1989

Regards
Rob

Hi,
is there any modification required for the caliper change?
Cheers
Ray

Nope, no mods required
KA claipers just bolt straight up to the Sierra hub
I used a Sierra Solid disk, but there were a few other options that were as good as identical...
It just so happened I scored a new pair of Sierra solids at £5 a pop because the packaging was a bit chuffed and the guy was local enough for me to collect in person

I did end up replacing my braided hoses (bought from Mr Russ Bost on here) as my old ones seemed just a little shorter with the new calipers ...but the engine wasn't in and possibly wasn't completely necessary, but worth while as the new hoses are just lush compared to the old ones (highly recomend his services!)

Will report back on how well the new setup really works on Thursday assuming the weather is not too bad and I get the rest of the stuff bolted up and the wings glued back on :-)

My guess is that its the smaller bore of the master cylinder that has made the most dramatic difference to the setup

Regards
Rob

That looks like a good buy - mine was £19 plus vat. It also appears to have 10x1.25 thread on the inlets so I need to change the unions on my brake pipes which is a bit of a pain.

Stu