Second Brake Piston: Inspection: Inspection

INSPECT 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY
1. Using vernier calipers, measure the free length of the spring together with the spring seat.
  
  Fig 1: Measuring Free Length Of 2nd Brake Piston Return Spring
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard free length
  
  16.61 mm (0.6539 in.)