Impreza WRX F4-2.0L DOHC Turbo (2004)
5) Remove the guide pin and boot from caliper body.
ASSEMBLY
1) Clean the caliper body interior using brake fluid.
2) Apply a coat of brake fluid to the piston seal and fit piston seal in groove on caliper body.
3) Apply a coat of brake fluid to the entire inner surface of cylinder and outer surface of piston.
4) Apply a coat of specified grease to the boot and fit in the groove on ends of cylinder and piston boot onto cylinder.
Grease: NIGLUBE RX-2 (Part No. 003606000)
5) Insert the piston into cylinder.
CAUTION: Do not force the piston into cylinder.
6) Position the boot in grooves on cylinder and piston.
7) Apply a coat of specified grease to the lock pin and guide pin outer surface, cylinder inner surface, and boot grooves.
Grease: NIGLUBE RX-2 (Part No. 003606000)
8) Install the lock and guide pin boot on support.
INSPECTION
NOTE: Repair or replace the faulty parts.
1) Check the caliper body and piston for uneven wear, damage or rust.
2) Check the rubber parts for damage or deterioration.