Kia Optima: Installation - High Pressure Fuel Pump. Repair procedures - Fuel Delivery System - Engine Control/Fuel System - Kia Optima TF 2011-2018 Service ManualKia Optima: Installation

Be sure to check the low pressure fuel hose quick-connector (A) is completely connected to the high pressure fuel pump until a confirmation 'click' sound is heard.
Be sure to re-check the low pressure fuel hose is completely connected to the high pressure fuel pump by pulling it after connecting.
Be sure to install the high pressure fuel pipe (B) with the specified torques.
Because fuel leak may cause fire, securely Inspect leakage of all fuel line connection parts at engine start condition.

Before installing the high pressure fuel pump, position the roller tappet in the lowest position by rotating the crankshaft. Otherwise the installation bolts may be broken because of tension of the pump spring.
Do not reuse the bolts.
Do not reuse the high pressure fuel pipe.
When tightening the installation bolts of the high pressure fuel pump, tighten the bolts in 1/2 turns (0.5 turns) sequentially after tightening them by hand sequentially.
Install the component with the specified torques.
First hand-tighten the fasteners fully until they are not fastened any more in orderto have them inserted in place and then completely tighten to the specified torque using a torque wrench.

If not tightening the bolts or nuts in a straight line with the mating bolt holes or fittings, it may cause a fuelleak due to broken threads.

Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
Apply engine oil to the O-ring (A) of the high pressure fuel pump, the roller tappet (B), and the protrusion (C). Also apply engine oil to the groove on the location where the protrusion (C) is installed.

1. Installation is reverse of removal.
Use the special service tool [SST No.: 09314-3Q100] to install the high pressure fuel pipe.


High pressure fuel pump installation bolt: 12.8 ~ 14.7 N.m (1.3 ~ 1.5 kgf.m, 9.4 ~ 10.9 lb-ft)

High pressure fuel pipe installation nut: 26.5 ~ 32.4 N.m (2.7 ~ 3.3 kgf.m, 19.5 ~ 23.9 lb-ft)

High pressure fuel pipe function block installation bolt: 7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)
Removal
In case of removing the high pressure fuel pump, high pressure fuel pipe, delivery pipe, and injector, there may be injury caused by ...

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