Compression seal is one of the main factors which determine the efficiency of internal combustion engines. This makes the valves and their seats of fundamental importance and if they are worn the efficiency of the engine is reduced.
PROPER RECONDITIONING SHOULD RESTORE SHAPE AND SYMMETRY, MAINTAINING
THE ORIGINAL LOCATION OF THE VALVE IN ITS SEATING, ELIMINATING DRAG AND
GUARANTEEING PERFECT SEAL DURING THE PROGRESSIVE WEAR OF THE ENGINE
PARTS.
THIS MAKES IT ESSENTIAL TO RESTORE:
To simplify these operations PEG Srl has patented a valve seat grinder which works by means of a BEVEL SYSTEM: THREE COMBINED SIMULTANEOUS GRINDING MOVEMENTS ON A SINGLE AXIS (pilot pin/valve guide) which ensures proper alignment.
The machine is built with high precision parts, reducing to a minimum errors due to slack in the connection of the components. The eccentric shaft is housed inside the motor shaft and has fixed eccentricity. Its supports are ground and the pilot pin hole is precision bored. The rotating parts are accurate by balanced and loaded to prevent axial or radial play on the bearings. The set of globoid screw gears is situated in the upper part of the machine with the micrometic feed register above it. The grindwheel spindle is ground. Strict control and testing are carried out to ensure that each machine is precision built to a high standard. To make provision for the range of engines currently available the regrinding system comprises a number of models to meet all requirements.
Each machine is provided with a wide range of self-centering pilot pins and grindwheels complete with a dressing device. Each set is supplied in a metal box.
PEG REGRINDING MACHINES ELIMINATE THE NEED FOR FINAL POLISHING OFF.
