MSD 2950 Atomic LS2_LS3 Master Kit Installation User Manual
Page 9

INSTALLATION INSTRUCTIONS
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Figure 10 Installing Fuel Hose to the Push-Lock 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. 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 utilize
Push-Lock technology and are designed exclusively for
use with the supplied hose. These fittings do not require
clamps, however it is imperative to follow the installation
instructions.
Proper installation begins with a clean, square cut of
the hose. A hose cutting tool or new razor blade are
recommended. When installing the hose it is important
that the hose is pushed on all the way to the thin beauty
ring. This means the hose should fully overlap the
inboard barb. Too little of engagement, as well as over-
engagement, will result in a compromised connection
that is prone to failure. Figures 12 and 13 illustrate the
required installation of the hose and fittings.
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 outer
jacket, braids and inner liner. The cut plane should
be perpendicular to the hose axis. (Figure 12).
2. Before installing the hose to the fitting, it is important
to anchor the fitting. Proper installation cannot be
achieved by holding the hose and fitting in your
hands. For best results, the hose should be installed
with minimal twisting or pausing.
3. Apply a light coat of oil to the barbs on the fitting.
Use care not to get oil on the outside of the hose as
it will be impossible get a firm grip on the hose.
4. With the fitting anchored securely, push the hose
over the barbs. The hose is properly installed when
it is flush with the thin edge of the beauty ring
(Figure 13). At this point, the hose end should have
rolled over the inboard barb.
WARNING: The supplied MSD Push-Lock AN
fittings are designed only for use with
the supplied fuel hose (Aeroquip AQP
FC598). We do not recommend mixing
Push-Lock style fittings and hoses from
different manufacturers. Doing so may
result in fuel leaks and expose other
dangerous incompatibilities.
Figure 11 Installing Fuel Hose to the Push-Lock Fittings.
Figure 12 Severing the Hose Properly.
CORRECT CLEAN,
SQUARE CUT
Figure 13 Installed Push-Lock Fitting.
END OF HOSE IS FLUSH
WITH THE THIN EDGE
OF THE BEAUTY RING.
Properly Installed Push-Lock Fitting
INCORRECT
JAGGED, ROUGH
CUT RESULTS IN
A COMPROMISED
CONNECTION
E X C E S S I V E G A P T O
BEAUTY RING RESULTS
IN A COMPROMISED
CONNECTION.
Improperly Installed Push-Lock Fitting