Maserati GRANTURISMO MC - Brake System Components and Procedures; Brake Calipers Specifications

MASERATI GRANTURISMO MC TROFEO/GT4 SERVICE MANUAL
33
Ver 1.0 2/16
8. Brakes
8.1. Calipers
The car is equipped with Brembo racing calipers.
Do not use solvents or chemicals to clean the brake calipers, but water and soap.
Chemical aggression/corrosion may result in permanent damage to the pistons and/or the
seals, with consequent fluid leakage and/or air penetration.
8.1.1. Front Caliper
Brembo P6 28/30/38, Ref. XA6.61.01 (left), XA6.61.02 (right ).
6 piston caliper: diameters 28mm, 30mm, 38mm
8.1.2. Rear Caliper
Brembo P4 30/34, Ref. XA7.G1.13 (left), XA7.G1.14 (right ).
4 piston caliper: diameters 30mm, 34mm
8.1.3. Tightening torques
Tightening torques of bleeding nipples:
 Cold brakes: 12 ÷ 16 Nm
 Hot brakes: 8 ÷ 10 Nm
Tightening torque of the brake line fitting to caliper with copper seal is 23 ÷ 26 Nm.
Tightening torque of calipers to the hub carrier is
 Front Caliper 65 ÷75 Nm
 Rear Caliper 45 ÷ 55 Nm
8.2. Brake Disks
The car is equipped with steel brake disks
Maserati
Part Number
Brembo
Part Number
Outside
Diameter
Thickness
Front - LH
205096
09.8528.78
380 mm
35 mm
Front - RH
205097
09.8528.88
380 mm
35 mm
Rear - LH
261802
09.A882.10
326 mm
26 mm
Rear - RH
261801
09.A882.20
326 mm
26 mm
Maximum recommended wear of the disks is 1 mm, resulting in minimum thickness
34 mm for the front disks and 25 mm for the rear disks.
8.2.1. Tightening torques
Tightening torques of the pegs for connecting the brake disk to the bell is 10 ÷ 12 Nm
and should be checked always with cold brakes.