replace valve seat rings

AR05.30-P-3831A

replace valve seat rings

14.10.96

 

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

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

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

WE58.40-Z-1010-21A

Valve seat turning device