Author Topic: 105 Rear Calipers on Alfetta  (Read 4531 times)

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Re: 105 Rear Calipers on Alfetta
« Reply #15 on: August 11, 2020, 11:03:23 AM »
I had this problem on my 75 when I put 105 callipers on the rear. The rear pistons would retract. Everything new or rebuilt and no air in the system. After advice from Mike. I installed a 2lb check valve in the rear brake line. Problem solved. Best brakes Iíve ever had.

Hey Gusto,

Where in the rear line did you install the check valve?
Current Alfa:
1975 Alfetta GT 2.0 Race car

Past Alfas:
1989 Alfa75 2.5ltr
1982 Alfetta Sedan 2.0
1976 Alfetta GT


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Re: 105 Rear Calipers on Alfetta
« Reply #16 on: October 16, 2020, 07:04:25 PM »
I had a similar issue on my Suzuki SV650 front calipers. The pistons would retract, even though I had rebuilt the calipers.
Pump the lever and second/third pump firm lever. Bled and reverse bled, loads of brake fluid later, no improvement!
I pulled the pistons out again and applied a little rubber grease to the seals, this fixed the problem!