Bottom Clearance Adjustment(Fuel Injection Timing) - Takeuchi TB 175 Handbuch

4.2. Bottom clearance adjustment(Fuel Injection Timing)

1. The Fuel Injection Timing of MP-pump is made by means of
adjusting the bottom clearance of the Cam ie. adjustment of the
Pre-stroke of the plunger , as follows.
2. The adjustment of the clearance shall be made at cam-top
position in order to get the reliable
Therefore herein after we will mention that "The adjustment of
the bottoms clearance (of the Cam)".
3. First of all , put the JIG of the bottom clearance measurement
on the standard gauge(W/"A"- measurement). Then set the
O-point of the dial gauge.
4. Next adjust the clearance by shims into the standard after
measuring the bottom clearance A* with JIG (Dial gauge)(Refer
to the attached sheet)*Measurement between upper surface of
the Barrel and upper surface of the plunger at Cam bottom
position
and easier method.
Barrel
Bottom clearance gaug
A
Plunger
Shim
44
Bottom clearance gauge
Dial gauge
A