Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 65

13A-20
Mating
marks
Back-up ring A
Back-up ring B
GDI <4G6> -
Fuel injector
Delivery pipe
assembly
O-ring
Cutaway
surface
Injector
4. Align the mating marks on the delivery pipe assembly
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
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
toward the opposite side of the O-ring as shown in
the illustration.
2. Confirm the outer diameter of the back-up ring A.
Take 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
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) and delivery pipe.