INSTALLATION INSTRUCTIONS
9
Figure 10 Installing Fuel Hose to AN Fittings.
Fuel Inlet Fittings and Cross-Over Line: LS
engines require a cross-over fuel line to route
the fuel from one bank to the other. This is
typically done at the front of the engine. (Figure
10) Due to the variety of intake manifolds and
accessories, a cross-over line must be made
for each application
MSD supplies a length of fuel hose and two 90°
-6AN fittings to prepare a fuel crossover line. The fittings
are designed for use with the supplied hose and clamps.
Proper installation begins with a clean, square cut of
the hose. A hose cutting tool or a new razor blade are
recommended. When installing the hose, it is important
that the hose is pushed all the way to the backstop. The
clamp must be centered between the fitting rib and the
backstop before it is tightened.
1. Determine the length of hose needed. Mark the hose
and cut it using a hose cutter or new razor blade.
There should be minimal disturbance of the jacket and
braids. The cut plane should be perpendicular to the
hose axis (Figure 11).
2. Before installing the hose to the fitting, it is important to
anchor the fitting (Figure 12). Proper installation may
be difficult when holding the hose and fitting with your
hands. For best results, the hose should be installed
with minimal twisting or pausing.
3. Apply a light coating of oil to the rib on the fitting. Use
care not to get oil on the outside of the hose as it will
be impossible to maintain a grip on the hose.
4. With the fitting anchored securely, push the hose
over the fitting until it bottoms against the backstop.
Center the clamp between the rib and backstop before
tightening (Figure 13).
WARNING:
The supplied MSD AN Fittings are
designed only for use with the supplied
fuel hose. We do not recommend
mixing fittings and hoses from different
manufacturers. Doing so may result in
fuel leaks and expose other dangerous
incompatibilities.
Figure 12 Installing Fuel Hose to the Push-Lock Fittings.
CLAMP
CLAMP
Figure 11 Severing the Hose Properly.
Figure 13 Installed Fitting and Clamp.
CORRECT CLEAN,
SQUARE CUT
INCORRECT
JAGGED, ROUGH
CUT
END OF HOSE IS FLUSH
WITH BACKSTOP
Properly Installed Clamp and Fitting
CLAMP IS CENTERED
BETWEEN RIB AND
BACKSTOP
