Test values for valve seat rings
Número | Denominação | Engine 475.9; 476.9 | |||
BE05.30-B-1001-03B | Diameter | (B) of the head case housing, intake | Normal | mm | 60.00...60.03 |
Normal I | mm | 60.20...60.23 | |||
Repair I | mm | 60.40...60.43 | |||
(a) external of the intake valve case | Normal | mm | 60.10...60.11 | ||
Normal I | mm | 60.30...60.31 | |||
Repair I | mm | 60.50...60.51 | |||
BE05.30-B-1002-03B | Diameter | (B) of the head case housing, exhaust | Normal | mm | 53.00...53.03 |
Normal I | mm | 53.20...53.23 | |||
Repair I | mm | 53.40...53.43 | |||
(a) external of the exhaust valve case | Normal | mm | 53.10...53.11 | ||
Normal I | mm | 53.30...53.31 | |||
Repair I | mm | 53.50...53.51 | |||
BE05.30-B-1005-03B | Depth (C) of the intake and exhaust cases housing | Normal | mm | 12.5...12.6 | |
Normal I | mm | 12.7...12.8 | |||
Repair I | mm | 12.9...13.0 | |||
BE05.30-B-1014-03B | Interference between the case (exhaust and intake ) and the housing in the head | mm | 0.07...0.11 | ||
001 589 53 21 00
Dial gage
B05.30-0002-02
1 Machine the basic bore for the intake or exhaust valve, in several stages, determining the measurement G for the cutting tool, until reaching the desired finish diameter (B). If necessary correct the depth (C) of the basic bore.
Calculation of measurement G: (B+F) : 2
Example: Diameter B = 60 mm (basic bore)
.................Diameter F = 18 mm (guide)
..................Measurement G = (60 mm + 18 mm) : 2 = 39 mm
When machining the basic bore, adopt the valve guide as centering reference, to ensure the concentricity of the basic bore in relation to the valve guide.
B05.30-0004-01
2 Check the diameter (B) of the center bore for the intake of exhaust valve seat insert with the inside diameter measuring device and the dial gage. Check the depth (C) of the basic bore.
Unconditionally assure the interference fit of the valve seat insert in the housing, maintaining the diameter of housing (B) within the tolerances of each repair stage.