Inspection and machining dimensions of valve seat rings - AR05.30-P-3831-03VT
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2012 Mercedes-Benz GL550, 2012 Mercedes-Benz GL450, 2011 Mercedes-Benz ML63, 2011 Mercedes-Benz ML550, and 2011 Mercedes-Benz ML350. However, it is still accessible from the selected car via links, so may be relevant.
TEST VALUES FOR VALVE SEAT RINGS
| Number | Designation | Engine 113.960/961/962/963/964/965/967/968/971/980/981/982/984/987/988/990/991/992/993/995 | Engine 113.989 | |||
|---|---|---|---|---|---|---|
| BE05.30-P-1001-03C | Intake valve seat ring outer- Ø | Standard | mm | 39.1 (+0.015) | 39.1 (+0.015) | |
| Rep. size 1 | mm | 40, 3 | 40, 3 | |||
| BE05.30-P-1002-03C | Exhaust valve seat ring outer- Ø | Standard | mm | 44.1 (-0.01) | 44.1 (-0.01) | |
| Rep. size 1 | mm | 45, 3 | 45, 3 | |||
| BE05.30-P-1003-03C | Height of valve seat ring | Intake | Standard | mm | 5.9 (-0.08) | 5.9 (-0.08) |
| Rep. size 1 | mm | 5.9 (-0.08) | 5.9 (-0.08) | |||
| Exhaust | Standard | mm | 7.9 (-0.08) | 7.9 (-0.08) | ||
| Rep. size 1 | mm | 7.9 (-0.08) | 7.9 (-0.08) | |||
| BE05.30-P-1004-03C | Valve seat ring - overlap in cylinder head | Intake | mm | 0.084...0.115 | 0.084...0.115 | |
| Exhaust | mm | 0.074...0.100 | 0.074...0.0100 | |||
| BE05.30-P-1005-03C | Distance between contact face of cylinder head and end face of valve seat ring | Intake | mm | 8.50...8.58 | 8.50...8.58 | |
| Exhaust | mm | 9.57...9.65 | 9.57...9.65 | |||
| BE05.30-P-1006-03C | Basic bore diameter of inlet valve seat rings in cylinder head | Standard | mm | 39.000...39.016 | 39.000...39.016 | |
| Rep. size 1 | mm | 40.200...40.216 | 40.200...40.216 | |||
| BE05.30-P-1007-03C | Basic bore diameter of exhaust valve seat rings in cylinder head | Standard | mm | 44.000...44.016 | 44.000...44.016 | |
| Rep. size 1 | mm | 45.200...45.216 | 45.200...45.216 | |||
| BE05.30-P-1008-03C | Bore depth of valve seat rings in cylinder head | Intake | Standard | mm | 14, 40 | 14, 40 |
| Exhaust | Standard | mm | 17, 47 | 17, 47 | ||
Shown on exhaust valve seat ring
Fig 1: Identifying Inspection And Machining Dimensions Of Valve Seat Rings - Shown On Exhaust Valve Seat Ring
Shown on exhaust side
The overlap of the valve seat ring in the cylinder head is determined as follows: outside diameter of the valve seat ring (B) minus the basic bore diameter of the valve seat ring in the cylinder head (E).