+1 use clean brake fluid for cleaning, and penetrating oil for dismantling. Silicon should be avoided with brake parts.
The filling the caliper through the bleed nipple with a compressed piston works quite well. When the whole system is full of bubbles it is hard even to get it spongy first to bleed. A vacuum pump or even just a check valve with a long bleed hose works well in this situation.
1980 Gpz550 D1, 1981 GPz550 D1. 1982 GPz750R1. 1983 z1000R R2. all four aces
