Machine valve seat rings

AR05.30-P-4511A

Machine valve seat rings

2.11.11



Remove/install

1

Remove valves

AR05.30-P-3511A

2

Inspect valve guide

If necessary, after inspection, 

Fit a new valve guide

3

Machine valve seats

 Observe tool manufacturer's operating instructions, maintain dimensions in accordance with test and setting values.

*BE05.30-P-1001-03A

Cylinder head clamping device (cylinder head holding fixture)

Valve seat turning device

Testing kit for valve seats

Cutting tools for valve seat and correction angle (α) and (β)

4

Inspect valve seat for leaks

Measure valve seat width

Correct valve seat width if necessary.

(angle piece α and β)

5

Measure distance of valve stem end to camshaft bearing base

Camshaft dia. standard dimension

 To do this insert 6 mm dia. round material into middle of the camshaft bearing base and measure dimension with vernier caliper.

*BE05.30-P-1001-01A

Camshaft dia. repair stage

*BE05.30-P-1002-01A

 If measurement is less than minimum dimension, no correct valve clearance compensation is possible.

Replace valve seat rings

6

Install in the reverse order

Number

Designation

Engine 111

BE05.30-P-1001-01A

Distance from end of valve stem to base of camshaft bearing (inspection dimension" T") for standard size camshaft dia.

Inlet

25.18-25.70

Outlet

23.18-23.70

See picture

AR01.30-P-7162A

BE05.30-P-1002-01A

Distance from end of valve stem to base of camshaft bearing (inspection dimension" T") for camshaft dia. repair

Inlet

24.93-25.45

Outlet

22.93-23.45

See picture

AR01.30-P-7162A

Number

Designation

Engine 111

BE05.30-P-1001-03A

Intake valve/exhaust valve

Width of valve seat (b)

mm

0.9-1.1

Valve seat angle (α)

 

45

Top correction angle (β)

 

35

Bottom correction angle (γ)

 

58

max. radial runout

mm

0.03

See picture

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