Universal M-12 User Manual

INJECTION NOZZLE
This nozzle is throttle-type. Fuel fed from the pump pressurized to push the needle valve up and
the
fuel is then injected. The needle valve is pressed by the nozzle spring through the push rod.
Fuel overflow is passed from nozzle holder center through the fuel overflow nipple and the fuel
overflow
pipe to the fuel tank. Injection pressure can be controlled by inserting shims between
nozzle holder body and adjusting washers. The pressure increases when a O.1mm shim is inserted.
Injection nozzle is also precision finished as is the injection pump, treat it carefully and protect
from water and dust.
Injection nozzle
(31
(41
(51
'~-===--H--tt---161
...JH-1-f-t----+-tt-+t---17l
181--+---------<-1
1. Nozzle Holder Body
2. Adjusting Washer
3. Nozzle Spring
4. Push Rod
5. Retaining Nut
6. Nozzle Body
7. Needle Valve
8. Combustion Chamber
9. Fuel Overflow Nipple
10. Fuel Overflow Pipe
66

Universal M-12 Specifications

General

Brand	Universal
Model	M-12
Category	Engine
Language	English