Test coolant system for leaks, Page 12 – MAHLE RTI MCX-2F User Manual
Page 13
Page 12
Radiator
Radiator
FILL
RA
DIA
TO
R &
O
VER
FLO
W
EX
C
HA
NG
E C
OO
LA
NT
O
R
LO
WE
R
R
A D
IATO
R
& O
VE
RF
LO
W
S Y
S T
EM
V A
C
UU
M
O
FF
O
FF
Hose
EM
PT
Y W
AS
TE
TA
NK
& O
V E
RF
LO
W
LO
WE
R
RA
DIA
T O
R
TES
T
S Y
S T
EM
P R
E S
S U
RE
& O
V E
RF
LO
W
FIL
L R
A D
I AT
OR
E X
CH
AN
GE
CO
O
LAN
T
E M
P T
Y W
AS
TE T
AN
K
Green Hose
Black Hose
Core
Heater
OF
F
OF
F
SY
ST
EM
VA
CU
UM
& O
VE
RF
LO
W
LO
W
ER
RA
DIA
TO
R
EX
CH
AN
GE
CO
OL
AN
T O
R
FIL
L R
AD
IAT
OR
& O
VE
RF
LO
W
SY
ST
EM
PR
ES
SU
RE
EX
CH
AN
GE
C
OO
LA
NT
TE
ST
FIL
L R
AD
IAT
OR
& O
VE
RF
LO
W
LO
WE
R R
AD
IAT
OR
& O
VE
RF
LO
W
Water
Pump
OF
F
EM
PT
Y W
AS
TE
TA
NK
Engine
Block
Adapters
Step
EM
PT
Y W
AS
TE
TA
NK
Overflow
Adapter
Hose
TEST COOLANT SYSTEM FOR LEAKS
The MCX-2F can be used to check the coolant system for leaks. The coolant system
is pressurized and the System Pressure Gauge on the MCX-2F is monitored for a drop
in pressure which would indicate a system leak.
The MCX-2F should be connected a shown above.
1.
Turn both valves on front of MCX-2F to EXCHANGE.
2.
Turn control valve to TEST.
3.
Press the top of EXCHANGE COOLANT OR FILL RADIATOR & OVERFLOW
selector switch to turn on the pump.
4.
Watch the System Pressure Gauge and press the bottom of the EXCHANGE
COOLANT OR FILL RADIATOR & OVERFLOW selector switch when the
pressure reaches 10 to 13 PSI.
5.
The coolant system is now pressurized. Monitor the pressure for a constant
reading. A coolant system leak is indicated if the pressure falls.