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Author Topic: Rallye S brake system  (Read 141 times)
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simonpen
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Posts: 51


« on: 15 September, 2020, 04:31:53 PM »

My very knackered rear callipers have 35mm pistons. I was expecting 33mm. Did the S have larger pistons? ta
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1969 Rallye 1.3S
nistri
Megaposter
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Posts: 317


« Reply #1 on: 15 September, 2020, 05:01:13 PM »

Usually, yes 35 mm. The 33 mm size was normally fitted to the 1.2 coupe, Andrea
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Andrea Nistri

Ardea S2
Appia S2
Fulvia GTE
Fulvia Sport 1.3 S
Fulvia Montecarlo
Fulvia Coupe 1.3 S
simonandjuliet
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Posts: 2154



« Reply #2 on: 15 September, 2020, 05:05:44 PM »

Aren't the Dunlop pistons always measured in inches (marked on the top ) ?

Also, does anyone know the diametre of the master cylindre for the "S" - is it 19mm ? I think my non servo GT has an 18mm bore
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S1 Aprilia Cabrio, S2 Aprilia, S1 Promiscuo,S2 camioncino, S2 furgoncino, , R4 Sinpar, R4 Rodeo, R60 Tractor,R60 S, Moto Guzzi Ercole, Disco 3, Mini ALL4 JCW, Moto Guzzi Cardellino 73,Fulvia Berlina GT, Fulvia Rallye S, Royal Enfield Himalayan
simonpen
Member
****
Posts: 51


« Reply #3 on: 15 September, 2020, 07:25:31 PM »

Thankyou Andrea, perhaps I was thinking of my earlier car. My master cylinder is 19mm. 
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1969 Rallye 1.3S
nistri
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Posts: 317


« Reply #4 on: 16 September, 2020, 01:04:50 PM »

Originally all fulvia rallye S and GTE both had 19 mm brake master cylinders (plus servo). Other S1 cars had 18 mm (non servo).Andrea
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Andrea Nistri

Ardea S2
Appia S2
Fulvia GTE
Fulvia Sport 1.3 S
Fulvia Montecarlo
Fulvia Coupe 1.3 S
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