Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 476

Mat-
ing
marks
O-ring
Back-up ring A
Back-up ring B
GDI –
4. Align the mating marks on the delivery pipe assembly
Fuel injector
Delivery pipe
assembly
Install the back-up rings and the O-ring as shown in the
illustration.
Caution
1. Install the back-up ring B facing its cutaway surface
Cutaway
surface
2. Confirm the outer diameter of the back-up ring A. Take
Apply a small amount of fresh engine oil to the O-ring.
Caution
Take care not to let any of the engine oil get inside the
fuel pump (high pressure), fuel pressure regulator (high
pressure) or the delivery pipe assembly.
Injector
and the fuel injector, and then install the delivery pipe
assembly with the injector assembly still attached.
CA BACK-UP RING B/O-RING/BACK-UP RING A
INSTALLATION
toward the opposite side of the O-ring as shown in
the illustration.
care not to install the back-up ring for the fuel pressure
sensor by mistake. (Outer diameter of the back-up
ring A: 14.8 mm)
DA FUEL RETURN PIPE/FUEL FEED PIPE
INSTALLATION
13A-117