VALVE, VALVE SPRING, VALVE SEAL, VALVE GUIDE CONSTRUCTION[L3]

id0110a4101100

•  The valves are heat-resistant steel. There are two intake valves, two exhaust valves per cylinder.

Valve specification

ITEM

 
valve full length
(mm {in})
Intake valve: About 101.6 {4.000}
Exhaust valve: About102.6 {4.039}
Intake valve umbrella diameter
(mm {in})
About 32.5 {1.28}
Exhaust valve umbrella diameter
(mm {in})
About 28
{1.10}
Stem diameter
(mm {in})
Intake valve: About 5.5 {0.22}
Exhaust valve: About 5.5 {0.22}

•  The intake valve and the exhaust valve are treated with the tufftride process to improve abrasion resistance.
•  The valve spring is an uneven outer dimension type. It has been improved by reducing the size of the upper seat.
•  The valve guide is made of the sintered alloy to improve abrasion resistance.
•  The valve seat is integrated with the lower valve spring seat to simplify the unit and improve its serviceability.
atraan00000252