Inspecting/machining valves - AR05.30-P-4201A

ENGINES 604, 605, 606 / 

Fig 1: Inspecting Machining Valves

	Removing/installing
1	Remove valves		AR05.30-P-3511B
	Checking
2	Clean valves and carry out a visual inspection	Valves with scorched valve disk, with insufficient height (h) of valve disk or with used or scored valve stem, should be replaced.	*BE05.30-P-1002-01B
3	Measure concentricity at valve stem and valve seat	Replace, if necessary: ↓	*BE05.30-P-1009-01B
		Disposal of sodium-filled valves	OS05.30-P-0001-01A
	Machining
4	Machine valve seats		*WE58.40-Z-1008-21A
		Pay attention to operating instructions for machining equipment and to setting angle	*BE05.30-P-1002-01B
			*BE05.30-P-1003-01B  *BE05.30-P-1008-01B
5	Once again measure runout at valve stem and valve seat	If runout excessive or height (h) insufficient, replace valve	*BE05.30-P-1009-01B
6	Replace valve, check for leaks		*WH58.30-Z-1020-13A
7	Install in reverse order

Test values for valves

Number	Designation			Engine 604.91, 605.91, 606.91 up to 10/94	Engine 604.91, 605.91, 606.91 as of 11/94	Engine 605.96, 606.96
BE05.30-P-1001-01B	Valve disk dia. (D)	Exhaust	mm	25.90-26.10	25.90-26.10	25.90-26.10
		Intake	mm	28.90-29.10	28.90-29.10	28.90-29.10
		See picture in		-	-	-
BE05.30-P-1002-01B	Height of valve disk (h)	Exhaust	mm	1.0-1.2	1.0-1.2	1.0-1.2
		Intake	mm	1.0-1.2	1.0-1.2	1.0-1.2
		See picture in		-	-	-
BE05.30-P-1003-01B	Valve seat angle (α)	Exhaust	∠°	45°-15'	45°-15'	45°-15'
		Intake	∠°	45°-15'	45°-15'	45°-15'
		See picture in		-	-	-
BE05.30-P-1004-01B	Valve stem dia. (D 1)	Exhaust	mm	5.955-5.97	6.955-6.97	6.955-6.97
		Intake	mm	5.960-5.975	5.960-5.975	5.955-5.97
		See picture in		-	-	-
BE05.30-P-1005-01B	Valve seat reinforcement without ==>1 with ==>2	Exhaust		1	1	2
		Intake		-	-	1
BE05.30-P-1006-01B	Sodium filling without ==>1 with ==>2	Exhaust		1	1	2
		Intake		-	-	1
BE05.30-P-1007-01B	Length of valve (L)	Exhaust	mm	105.5-105.9	105.5-105.9	105.5-105.9
		Intake	mm	105.2-105.6	105.2-105.6	105.2-105.6
		See picture in		-	-	-
BE05.30-P-1008-01B	Width of valve seat	Exhaust	mm	1.9	1.9	1.9
		Intake	mm	1.9	1.9	1.9
BE05.30-P-1009-01B	Concentricity of valve seat to valve stem	Exhaust	mm	≤0.03	≤0.03	≤0.03
		Intake	mm	≤0.03	≤0.03	≤0.03
BE05.30-P-1010-01B	Identification on end of stem	Exhaust		+A 606 05/06	A606 05/07	A606 13
		Intake		e606 11	e606 11	e606 11

Commercially available tools

Number	Designation
WH58.30-Z-1020-13A	Vacuum testing unit

Workshop equipment

WE58.40-Z-1008-21A

Valve grinding machine