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Section 08
COOLING SYSTEM
Subsection 02
(CIRCUIT, COMPONENTS AND CARE)
SMR2002-080_08_02A.FM
08-02-9
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.
1. Stamped number
A. Outlet diameter = 4.6 mm (.181 in)
B. Inlet diameter = 5.5 mm (.219 in)
Water Flow Regulator Valve
A water flow regulator valve is mounted 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.
TYPICAL
1. Water supply hose of regulator valve
2. Regulated water to injection fitting
3. Water injected into the muffler
NOTE:
The water injected into the muffler is not
regulated by the valve. A calibrated water injection
fitting of 4.0 mm (.156 in) inside diameter limits
water flow into the muffler.
The water flow regulator valve has a calibrated
spring and a tapered needle which regulate the
injected water in the tuned pipe.
CAUTION:
Do not change anything on the wa-
ter flow regulator valve, otherwise serious en-
gine damage can occur. In many countries it is
illegal to tamper with this valve as this will af-
fect the EPA certification.
At low speed, water pressure in the supply hose
of the regulator valve is not sufficient to overcome
the spring of the regulator valve; more water is
being delivered to the injection fitting at the tuned
pipe.
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)
16
A
1
B
F00E04A
F01E1FA
1
2
3
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Summary of Contents for GTX 4-TEC 5573 2002
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