NOTE: Fuel pressure relief valve cap (9H323) on fuel pressure relief valve (9H321)
must be removed.
If fuel injection supply manifold (9F792)
is mounted to engine, remove fuel tank filler cap (9030)
, then release pressure from system at fuel pressure relief valve
on fuel injection supply manifold
, using Fuel Pressure Gauge T80L-9974-B.
Using an open-end wrench or suitable deep-well socket, remove fuel pressure relief valve
.
Installation
Install fuel pressure relief valve
and fuel pressure relief valve cap
. Tighten fuel pressure relief valve
to 7.75 Nm (66 lb-in) and the fuel pressure relief valve cap
to 0.6 Nm (5.5 lb-in).