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Doosan A2300 - Air System

Doosan A2300
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A Series Diesel Engine Fuel System 96
Timing
Dial Indicator Method
Find number 1 or top dead center (TDC) on
compression for the number 1 cylinder by barring the
engine until the hashmarks on the crank pulley line
up with the indicator mark on the gear cover. This
can be confirmed by removing the front cover access
plate and ensuring that the idler gear and fuel pump
gear timing marks are aligned.
A straight edge can be used to aid lining up the gear
cover pointer and number 1 or top dead center
(TDC) mark.
The flywheel also contains number 1 or top dead
center (TDC) marks. The starter plate or flywheel
contains the alignment mark. The mark is located at
the 3 o'clock position as viewed from the rear of the
engine. The flywheel can be used instead of the
crank pulley if accessible.
12mm
Remove the access plug from the distributor head on
the fuel pump.
Thread the timing tool assembly into the access plug
hole and finger tighten.

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