replace valve seat rings - AR05.30-P-3831A

ENGINES 604, 605, 606 / 

Fig 1: Identifying Valve Seat Rings Dimensions

	Remove, Install
1	Remove valves		AR05.30-P-3511B
2	Check valve guides
3	Unscrew valve seat ring with ring seat turning tool	Pay attention to operating instructions of ring seat turning tool.	*WE58.40-Z-1010-21A
			*BE05.30-P-1005-03B
4	Measure basic bore (D2)	Pay attention to overlap, a new valve seat ring of standard dimension can be used if overlap is the same as the specified overlap. If necessary, drill repair size and use repair size valve seat ring, for this reason: ↓ Adjust height of reworked end face	*BE05.30-P-1002-03B
5	Undercool valve seat ring using liquid nitrogen and heat cylinder head in water bath to approx. 80°C	The valve seat ring must be positioned axially in the cylinder head.
6	Drive in valve seat ring using a suitable guide drift
7	Machine valve seats		AR05.30-P-4511B
8	Install in the reverse order

Test data of valve seat rings

Number	Designation			Engines 604, 605, 606
BE05.30-P-1002-03B	Bore depth of valve seat rings in cylinder head (C) for standard size valve seat rings	Inlet	mm	7,94...8, 04
		Outlet	mm	7, 92...8, 02
		Fig. see		AR05.30-P-3831A
BE05.30-P-1003-03B	Bore depth of valve seat rings in cylinder head (C) for repair size valve seat rings	Inlet	mm	8, 14...8, 24
		Outlet	mm	8, 12...8, 23
		Fig. see		AR05.30-P-3831A
BE05.30-P-1004-03B	Radius (R)	Inlet	mm	0, 2...0, 4
		Outlet	mm	0, 2...0, 4
		Fig. see		AR05.30-P-3831A
BE05.30-P-1005-03B	Bore dia. of valve seat rings standard size (D2)	Inlet	mm	30, 060...30, 070
		Outlet	mm	28, 000...28, 013
		Fig. see		AR05.30-P-3831A
BE05.30-P-1006-03B	Bore ø of valve seat rings repair size I (D2)	Inlet	mm	30, 250...30, 266
		Outlet	mm	28, 250...28, 263
		Fig. see		AR05.30-P-3831A
BE05.30-P-1007-03B	Valve seat rings - overlap in cylinder head	Inlet	mm	0, 2...0, 4
		Outlet	mm	0, 2...0, 4
BE05.30-P-1008-03B	Height of valve seat ring (H)	Inlet	mm	5, 6
		Outlet	mm	5, 6
		Fig. see		AR05.30-P-3831A
BE05.30-P-1009-03B	Height of valve seat ring rep. size I (H)	Inlet	mm	5, 6
		Outlet	mm	5, 6
		Fig. see		AR05.30-P-3831A
BE05.30-P-1010-03B	Valve seat ring outer ø (D)	Inlet	mm	30, 00...30, 013
		Outlet	mm	27, 97...28, 07
		Fig. see		AR05.30-P-3831A
BE05.30-P-1011-03B	Valve seat ring outside dia. repair size I (D)	Inlet	mm	30, 31...30, 32
		Outlet	mm	28, 31...28, 32
		Fig. see		AR05.30-P-3831A

Commercially available tools

Number	Designation
WH58.30-Z-1002-12A	Micrometer
WH58.30-Z-1011-12A	Internal measuring instrument
WH58.30-Z-1012-12A	Setting gage for micrometer

Workshop equipment

WE58.40-Z-1010-21A

Valve seat turning device