Cold Start Device); Cold Starting Advancer - Takeuchi TB 175 Handbuch

2.7. C.S.D.(Cold Start Device)

2.7.1. Cold Starting Advancer

Purpose
In order to facilitate easy engine starting under cold temperatures, the advancer senses the cooling water temperature for
advancing the fuel injection timing.
2.7.1.1. Structure & Function
At normal operating
Sub-port
is opened
Main port
Sub port
Fuel IN
Plunger barrel
When the coolant temperature is higher than specified
value, the thermo-element keeps expanding and the sub-
port is opened.
Termo-elementt
Engine coolant
Piston
Spring
Plunger
Fuel gallery
At cold starting
Sub-port
is closed
Fuel IN
When the coolant temperature is lower than specified
value, the thermo-element keeps shrinking and the sub-
port is closed by piston.
21