Replace valve seat rings

AR05.30-T-3831BB

Replace valve seat rings

11.11.11



Removing

1

Remove valves

For model 613.358/388, model 671

AR05.30-T-3511BB

For model 613.367/368

AR05.30-T-3511CB

2

Clamp cylinder head (3) onto cylinder head holding fixture

Cylinder head holding fixture

3

Check valve guides; replace if necessary

AR05.30-T-3731BB

4

Remove valve seat rings (1, 2) from the cylinder head (3)

AR05.30-T-3831-01BB



*000589283300



*000589293300



*000589343300

Valve seat turning device

5

Check bore  for valve seat rings in cylinder head (B)

Quick calipers for internal measurements

Outside micrometer

Bore for intake valve seat rings

*BE05.30-N-1003-03H

Bore for exhaust valve seat rings

*BE05.30-N-1004-03H

Valve seat ring - overlap in cylinder head

*BE05.30-N-1005-03H

If the specifications are not achieved: 

Rework valve seat ring basic bores

AR05.30-T-3831-02BB



*001589532100



*366589006900

Quick calipers for internal measurements

Outside micrometer

Cylinder head holding fixture

Outer dia. of intake valve seat ring

*BE05.30-N-1001-03H

Outer dia. of exhaust valve seat ring

*BE05.30-N-1002-03H

Bore for intake valve seat rings

*BE05.30-N-1003-03H

Bore for exhaust valve seat rings

*BE05.30-N-1004-03H

Valve seat ring - overlap in cylinder head

*BE05.30-N-1005-03H

Bore depth of valve seat ring in cylinder head "C"

*BE05.30-N-1008-03H



Install

 Danger!

Risk of injury caused by handling liquid nitrogen or by touching undercooled objects. Risk of suffocation from inhaling nitrogen gas.

Wear heat protective gloves, protective clothing and full eye protection.
Ensure that the work area is adequately ventilated.

AS00.00-Z-0003-01A

6

Supercool new valve seat rings (1, 2)



 Use valve seat rings (1, 2) according to bore  in cylinder head. Fill supercooling box with liquid nitrogen and supercool valve guide for about 20 to 30 min.

*346589006300

Outside intake valve seat ring (A)

*BE05.30-N-1001-03H

Outside exhaust valve seat ring (A)

*BE05.30-N-1002-03H

Height of intake valve seat ring (D)

*BE05.30-N-1006-03H

Height of exhaust valve seat ring (D)

*BE05.30-N-1007-03H

 Danger!

Risk of injury to skin and eyes caused by handling hot or glowing objects.

Wear safety gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

7

Heat cylinder head (3) in water bath

 Heat cylinder head to approx. 80 °C.

8

Use pliers to remove valve seat rings (1, 2) from the supercooling box and fit onto the bores of the heated cylinder head (3)

9

Press in valve seat rings (1, 2)

 Press in valve seat rings (1, 2) using a suitable drift and without delay.

10

Machine the valve seat rings (1, 2)

AR05.30-T-4511BB

11

Grind valves

AR05.30-T-4202BB

12

Install valves

For model 613.358/388, model 671

AR05.30-T-3511BB

For model 613.367/368

AR05.30-T-3511CB

Number

Designation

Engine 457.9

BE05.30-N-1001-03H

Intake valve seat ring outside diameter "A"

Default

mm

47.385 to 47.395

Deviation 0.2

mm

47.585 to 47.595

Deviation 0.4

mm

47.785 to 47.795

BE05.30-N-1002-03H

Exhaust valve seat ring outer diameter "A"

Default

mm

43.080 to 43.090

Deviation 0.2

mm

43.280 to 43.290

Deviation 0.4

mm

43.480 to 43.490

BE05.30-N-1003-03H

Bore diameter for intake valve seat ring in cylinder head "B"

Default

mm

47.300 to 47.325

Deviation 0.2

mm

47.500 to 47.525

Deviation 0.4

mm

47.700 to 47.725

BE05.30-N-1004-03H

Bore diameter for exhaust valve seat ring in cylinder head "B"

Default

mm

43.000 to 43.025

Deviation 0.2

mm

43.200 to 43.225

Deviation 0.4

mm

43.400 to 43.425

BE05.30-N-1005-03H

Valve seat ring overlap in cylinder head

Inlet

mm

0.060 to 0.095

Outlet

mm

0.055 to 0.090

BE05.30-N-1006-03H

Inlet valve seat ring height "D"

Default

mm

7.7 to 7.8

Deviation 0.2

mm

7.9 to 8.0

Deviation 0.4

mm

8.1 to 8.2

BE05.30-N-1007-03H

Exhaust valve seat ring height "D"

Default

mm

8.0 to 8.1

Deviation 0.2

mm

8.2 to 8.3

Deviation 0.4

mm

8.4 to 8.5

BE05.30-N-1008-03H

Bore depth of valve seat ring in cylinder head "C"

Default

mm

10.9 to 11.1

Deviation 0.2

mm

11.1 to 11.3

Deviation 0.4

mm

11.3 to 11.5