Installation and adjustament manual
12/26
INSTALLATION
Fig.4.5
3)
While drilling, extract the drill bit several times in
order to remove shavings, and apply grease each time
after cleaning. During the breakthrough phase of the
drilling operation, pay particular attention to prevent
the drill bit from carrying shavings inside the intake
manifold. Drill by using a 7-mm bit if the intake
manifold is made of aluminum alloy. Use a 6.75-mm
drill bit if the intake manifold is made of plastic.
During drilling, it is important that the drill bit is
maintained perpendicular to the surface to be drilled.
4)
Thread with M 8x1 tap.
5)
Screw in the injector fittings by using thread sealant.
Be careful not to damage the threads while tightening
the fittings.
4.4.5 Gaseous LPG connection hoses and MAP
connection
Fig 4.6
A) Hose between regulator-vaporizer and proportioner
B) Hose between proportioner and distributor
C) Tube between distributor and injectors
D) MAP hose between ECU, regulator-vaporizer, and
intake manifold
E) Venting tube from safety relief valve’s fitting to
the outside of the engine compartment
4.4.4.1 Procedure to install the injectors by
disassembling the engine’s intake manifold
1)
Disassemble the intake manifold, taking care not to
damage the gasket. Carefully take note of connection
and assembly of all components installed on the
manifold.
2)
By following the indications in the “vehicle file”,
establish the location on the manifold where the holes
to install the injectors are to be drilled. Mark the
drilling points.
3)
Before drilling, punch the exact locations where the
holes for the injector jets will be created.
4)
Apply grease on the drill bit in order to prevent the
spreading of shavings, then drill by using a 7-mm bit
if the intake manifold is made of aluminum alloy.
Use a 6.75-mm drill bit if the intake manifold is made
of plastic. During drilling it is important that the drill
bit is maintained perpendicular to the surface to be
drilled.
5)
Thread with M 8x1 tap.
6)
Carefully clean the intake manifold and remove any
shavings that result from the drilling.
7)
Screw in the injector fittings by using thread sealant.
Pay attention not to damage the threads while
tightening the fittings.
8)
Reassemble the intake manifold, and use new
manifold gaskets if necessary. Remount all
components previously removed during the
disassembly operation.
4.4.4.2 Procedure to install the injector jets without
disassembling the engine’s intake manifold
1)
By following the indications in the “vehicle file”,
establish the location on the manifold where the holes
to install the injector jets are to be drilled. Mark the
drilling points.
2)
Before drilling, punch the exact locations where the
holes for the injector jets will be created.
Fig.4.6
4.4.5.1 Hose between regulator-vaporizer and
proportioner (diameters: I.D. 14mm; O.D.
22mm)
-
The length must be the one indicated by the “vehicle
file”
-
Make sure that the inner part of the hose is clean.
-
When routing the hose, avoid paths that require sharp
bending which can deform the tube and reduce the flow.
-
Once the hose is connected, secure it with the clamps
provided.
4.4.5.2 Hose between proportioner and distributor
(diameters: I.D. 10mm; O.D 18mm)
-
The length must be the one indicated by the “vehicle
file.”
-
Make sure that the inside of the hose is clean.
