When it reaches its forward limit of travel it impacts the valve spring, thus pushing back the cupseal and opening the valve.
32.
A custom crank, conrods, and pistons were used, but the cylinder head was left unmodified apart from the camshafts and valve springs.
33.
There is also a significant risk of severe engine damage due to valve spring damage and / or pistons contacting the valves.
34.
Along with the valve spring, it serves to positively locate the valve so that it may make proper contact with the valve seat.
35.
The effective mass of a traditional valve with spring includes one-half of the valve spring mass and all of the valve spring retainer mass.
36.
The effective mass of a traditional valve with spring includes one-half of the valve spring mass and all of the valve spring retainer mass.
37.
All parts subject to wear, and those critical for engine ignition were duplicated : spark plugs for dual ignition reliability, valve springs, magnetos, etc.
38.
The tremolo system is made from an old hardened-steel knife-edge shaped into a V and two motorbike valve springs to counter the string tension.
39.
Upgrading to high pressure valve springs could allow higher valvetrain speeds, but this would also overload the valvetrain components and cause excessive and costly wear.
40.
Last week, the No . 85 car's ( Cromsigt ) motor broke and the No . 94 car's ( Dusty McDonald ) valve spring broke.
