Inspection and machining dimensions of valves · ar0530g420201mt · Mercedes-Benz WIS

AR05.30-G-4202-01MT

Inspection and machining dimensions of valves

ENGINE	444.901 in MODEL 000.001
ENGINE	447.903 in MODEL 000.001
ENGINE	457.9, 458.9, 541.9, 542.9, 941.9, 942.9 in MODEL 000.001

Check values for valves

Number	Designation			ENGINE 447.903	ENGINE 444.901
BE05.30-N-1003-01O	Valve seat angle "A"	Inlet	°	30	30
		Outlet	°	45	45
		Picture		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT

Check values for valves

Number	Designation			ENGINE 457.9, 458.9	ENGINE 541.9, 542.9, 941.9, 942.9
BE05.30-N-1004-01M	Valve seat angle "A"	Inlet	°	30	30
		Outlet	°	45	45
		Outlet	°	36	36
		For picture, see		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT

Check values for valves

Number	Designation			ENGINE 447.903	ENGINE 444.901
BE05.30-N-1004-01O	Valve disk dia. "B"	Inlet	mm	58,8...59,0	58,8...59,0
		Outlet	mm	50,9...51,1	50,9...51,1
		Picture		–	–

Check values for valves

Number	Designation			ENGINE 457.9, 458.9	ENGINE 541.9, 542.9, 941.9, 942.9
BE05.30-N-1005-01M	Valve disk dia. "B"	Inlet	mm	45,4...45,8	45,4...45,8
		Outlet with valve seat angle of 45°	mm	40,9...41,3	40,9...41,3
		Outlet with valve seat angle of 36°	mm	41,8...42,3	41,8...42,3
		For picture, see		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT

Check values for valves

Number	Designation				ENGINE 447.903	ENGINE 444.901
BE05.30-N-1005-01O	Valve seat width at valve disk "F"	New condition	Inlet	mm	4,5...5,5	4,5...5,5
			Outlet	mm	4,5...5,5	4,5...5,5
		Machining limit	Inlet	mm	6,50	6,50
			Picture		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT
			Outlet	mm	6,50	6,50

Check values for valves

Number	Designation			ENGINE 457.9, 458.9	ENGINE 541.9, 542.9, 941.9, 942.9
BE05.30-N-1006-01M	Valve seat width at valve disk "F"	Intake min.	mm	3,5	3,5
		Exhaust min.	mm	3,5	3,5
		For picture, see		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT

Check values for valves

Number	Designation			ENGINE 447.903	ENGINE 444.901
BE05.30-N-1006-01O	Valve length "C"	Inlet	mm	142,3...142,7	142,3...142,7
		Outlet	mm	142,3...142,7	142,3...142,7
		Picture		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT

Check values for valves

Number	Designation			ENGINE 457.9, 458.9	ENGINE 541.9, 542.9, 941.9, 942.9
BE05.30-N-1007-01M	Valve length "C"	Inlet	mm	145,0	145,0
		Outlet	mm	145,0	145,0
		For picture, see		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT

Check values for valves

Number	Designation			ENGINE 447.903	ENGINE 444.901
BE05.30-N-1007-01O	Valve stem dia. "E"	Inlet	mm	11,932...11,950	11,932...11,950
		Outlet	mm	11,922...11,940	11,922...11,940
		Picture		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT

Check values for valves

Number	Designation			ENGINE 457.9, 458.9	ENGINE 541.9, 542.9, 941.9, 942.9
BE05.30-N-1008-01M	Valve stem Ø "E"	Inlet	mm	8,935...8,950	8,935...8,950
		Outlet	mm	8,925...8,940	8,925...8,940
		For picture, see		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT

Check values for valves

Number	Designation		ENGINE 447.903	ENGINE 444.901
BE05.30-N-1008-01O	Hardness of valve stem on shaft end	HRC	54...60	54...60

Check values for valves

Number	Designation		ENGINE 457.9, 458.9	ENGINE 541.9, 542.9, 941.9, 942.9
BE05.30-N-1009-01M	Hardness of valve stem on shaft end	HRC	54...60	54...60

Check values for valves

Number	Designation				ENGINE 447.903	ENGINE 444.901
BE05.30-N-1009-01O	Intake valve seat face machining dimension "H" relative to valve seat face diameter "G"	Dimension "G"		mm	54,99...55,01	54,99...55,01
		New condition	Dimension "H"	mm	3,6...3,8	3,6...3,8
		Machining limit	Dimension "H"	mm	3,3	3,3
			Picture		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT

Check values for valves

Number	Designation			ENGINE 457.9, 458.9	ENGINE 541.9, 542.9, 941.9, 942.9
BE05.30-N-1010-01M	Intake valve seat face machining dimension "H" relative to valve seat face Ø "G"	Dimension "G"	mm	42	42
		Dimension "H"	mm	3,0...3,3	3,0...3,3
		For picture, see		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT

Check values for valves

Number	Designation				ENGINE 447.903	ENGINE 444.901
BE05.30-N-1010-01O	Exhaust valve seat face machining dimension "H" relative to valve seat face diameter "G"	Dimension "G"		mm	47,99...48,01	47,99...48,01
		New condition	Dimension "H"	mm	3,0...3,2	3,0...3,2
		Machining limit	Dimension "H"	mm	2,7	2,7
			Picture		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT

Check values for valves

Number	Designation			ENGINE 457.9, 458.9	ENGINE 541.9, 542.9, 941.9, 942.9
BE05.30-N-1011-01M	Exhaust valve seat face machining dimension "H" relative to valve seat face diameter "G"	Dimension "G"	mm	39	39
		Dimension "H" at valve seat angle of 45°	mm	2,8...3,1	2,8...3,1
		Dimension "H" at valve seat angle of 36°	mm	3,0...3,3	3,0...3,3
		For picture, see		AR05.30-G-4202-01MT	AR05.30-G-4202-01MT

Inspection and machining dimensions of valves

A	Valve seat angle
B	Valve disk diameter
C	Valve length
E	Valve stem diameter
F	Valve seat width on the valve disk
G	Valve seat face diameter based on dimension (H)
H	Machining dimension of the valve seat face based on the diameter of the valve seat face (G)

T05.30-0010-03

 Only with engine 457.9, 458.9, 541.9, 542.9, 941.9, 942.9:
Information about the exhaust valve installed at the works can be retrieved at the Mercedes-Benz service center. The complete engine number or the data card is required for this.

1.1	Engine 457.9, 458.9, 541.9, 542.9, 941.9, 942.9 Check dimensions at valves. - Valve seat angle "A", Valve disk Ø "B", Valve seat width at valve disk "F", Valve length "C", Valve stem Ø "E", Hardness of valve stem at end of stem, Intake valve seat faces, Exhaust valve seat surface

1.2	ENGINE 444.901, 447.903 Check dimensions at valves. - Valve seat angle "A", Valve disk Ø "B", Valve seat width at valve disk "F", Valve length "C", Valve stem Ø "E", Hardness of valve stem at end of stem, Intake valve seat faces, Exhaust valve seat surface