IMPORTANT: Nippondenso "A" injection pumps must
be installed straight (upright) on the
engine to assure correct alignment of
Misaligned linkage will bind and not
properly, if pump is incorrectly
installed. Pump is correctly aligned if
linkage can be moved freely back and
Preparing Injection Pump for Installation
NOTE: Place injection pump drive gear in timing gear
housing (if previously removed) with chamfered
side of gear toward injection pump. Chamfer is at
outer edge of bore for easier installation of gear to
E--JDG886 Timing Pin
pump drive hub.
1. If engine was rotated after injection pump was
removed, rotate flywheel until timing pin enters flywheel
NOTE: When No.1 cylinder is at "TDC" compression
stroke, intake and exhaust valves for No. 1
cylinder will be closed and both rocker arms will
2. Rotate injection pump drive hub until marks on drive
hub (B) and pointer (A) are aligned.
NOTE: It may be necessary to rotate pump hub slightly to
get timing pin (E) to enter bearing plate.
3. Thread JDG886 Timing Pin (E) into drive hub, as
shown, and tighten until it bottoms against bearing
4. Install a new O-ring (C) on pump mounting hub. Lightly
lubricate O-ring with AR54749 Soap Lubricant to aid in
pump installation and prevent O-ring damage.
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