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

id0110a2101100

• The valves are made of heat-resistant steel. There are two intake valves and two exhaust valves per cylinder.

Valve specification.

valve full length
(mm {in})
Intake valve: Approx. 103.4 {4.070}
Exhaust valve: Approx. 104.7 {4.120}
Intake valve head diameter
(mm {in})
Approx. 35 {1.38}
Exhaust valve head diameter
(mm {in})
Approx. 30 {1.18}
Stem diameter
(mm {in})
Intake valve: Approx. 5.5 {0.22}
Exhaust valve: Approx. 5.5 {0.22}

• The intake valve and the exhaust valve are tufftride processed to improve adhesion resistance.

• The valve spring is a beehive type. It has been improved by reducing the size of the upper valve spring seat.

• The valve guide is made of sintered alloy to improve abrasion resistance.

• The valve seal is integrated with the lower spring seat to simplify the unit and improve serviceability.