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Home >> Land Rover >> 2012 >> LR4 HSE Lux >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Power Brake Actuation >> Power Brake Actuation >> Specifications

Power Brake Actuation: Specifications

Sealant 

Application Land Rover Part No.
Brake vacuum pump - 2.7 Litre engine 8510302

General Specifications 

Item  Specification 
Brake booster type Twin chamber 228 and 254 mm (9.0 and 10.0 in)
Boost ratio 7:1
Brake vacuum pump make and type:   
V6 - 2.7 litre diesel engine Bosch 240cc SWP
V6 - 4.0 litre and V8 - 4.4 litre petrol engine Hella UP28

Torque Specifications 

Description Nm lb-ft
Brake booster nut 23 17
Brake master cylinder nuts 26 19
M12 brake pipe unions 16 12
M14 brake pipe unions 18 13
Brake pedal buffer bolts 10 7
Brake vacuum pump nuts - 4.0 and 4.4 litre engines 5 4
Brake vacuum pump bolts - 2.7 litre engine 23 17
Brake vacuum pump retaining stud - 2.7 litre engine 13 10
Brake vacuum pump retaining nut - 2.7 litre engine 13 10
High pressure fuel supply line retaining bolt - 2.7 litre engine 10 7
* Exhaust cross-over pipe nuts 2.7 litre engine 22 16
Exhaust cross-over pipe support bracket bolts - 2.7 litre 25 18
Exhaust manifold heatshield bolt - 2.7 litre 10 7

* New nuts must be fitted