Vauxhall Workshop Service and Repair Manuals

Pressure Data for Checking Brake Proportioning Valve - Model 71 (Combo)  

Valve Type	Ident. No. on Valve Housing	Input overpressure, read off manometer on front axle in kPa (bar)	Output overpressure, read off manometer on rear axle in kPa (bar)
Twin (load-dependent)	8/5	6000 (60)	3900 to 4200 (39 to 42)
		10000 (100)	5700 to 6100 (57 to 61)