Abstract:
I. Product and its uses
The tappet or valve lifter is held between
guides which are generally part of the engine
block. Its faces, the contact cam of the earn
shaft and its upper end adjustable in length with
adjusting screw is just beneath the bottom of
the valve stem. When the cam rotates it lifts
the tappet which lifts the valve to the open position,
connecting the valve part with the combustion
chamber. Non-adjustable type of tappets
are also used. In such case, the clearance can
be decreased by grinding the valve face and
valve seat for maintaining valve tappet clearance.
Some valve-lifters are Hydraulic valve
lifters and this valve-operating mechanism auto--
matically adjusts its length to compensate for
difference in valve tappet clearance. The tappet
body contains the cylinder and Ule oil reservoir.
As an original and replacement item, this will
find a good market for Automobiles, Tractors
and Marine Engines.
