October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Valve seats
Courtesy of VOLVO CARS OF NORTH AMERICA. Angles
| A |
Upper inlet reduction angle........20°
Upper exhaust reduction angle........15° |
| B |
Inlet and exhaust matching surface angles........45° |
| C |
Lower reduction angle........60° |
| a |
Width of the intake valve seat........1.4-1.8 mm
Width of the exhaust valve seat........1.8-2.2 mm |