Section 09 COOLING SYSTEM
Subsection 01 (CIRCUIT, COMPONENTS AND CARE)
1
F01B2KA
2
1. Cutting clamp
2. Securing clamp
Elbow Fitting
Water injection used on exhaust system cools the
exhaust gases to obtain maximum performance
from the tuned pipe. The elbow fitting no. 1 has
a calibrated inside diameter to optimize water flow
in tuned pipe.
The water injection also helps in reducing noise
level and cools components of the exhaust sys-
tem.
CAUTION: The elbow fittings are calibrated and
can not be interchanged with one of a different
size as severe engine damage could result.
The elbow fitting can be identified by using the
number stamped onto the fitting or by measuring
its inside diameter. Refer to the following illustra-
tion and chart.
16
A
1
B
F00E04A
1. Stamped number
A. Outlet diameter = 4.6 mm (.181 in)
B. Inletdiameter=5.5mm(.219in)
STAMPED
NUMBER
ON
FITTING
FITTING
P/N
INLET
DIAMETER
OUTLET
DIAMETER
16 293 700 016
5.5 mm
(.219 in)
4.6 mm
(.181 in)
18 293 710 018
4.0 mm
(.157 in)
5.5 mm
(.217 in)
23 293 700 023
8.5 mm
(.374 in)
8.7 mm
(.343 in)
48 293 710 048
4.0 mm
(.157 in)
3.5 mm
(.139 in)
Water Flow Regulator Valve
A water flow regulator valve is mounted on mod-
els with the 787 RFI and 947 DI engines so that
they can produce the maximum horsepower out-
put and yet maintain the necessary diameter of
the injection fitting at the tuned pipe head for un-
obstructed water flow.
The water flow regulator valve no. 2 is mounted
directly onto the muffler.
smr2004-Complete Line Up 477
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