M0488a.docx | Rev 1.7 | Modified on 19/05/2020 | © Remote Control Technologies Pty Ltd
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Coolant Level Sensor
– Function 1
It is recommended that the coolant level sensor be installed in the radiator tank (refer to the details below).
Ensure there is sufficient clearance within the radiator to accommodate the length of the coolant. Drill the
required hole size in the tank and tap to the required thread size as specified below. Always clean debris away
and remove any foreign objects before installing the probe. Fit the coolant level sensor and pressure test, this
can be achieved by running the engine until normal operating temperature has been reached.
Figure 3 Coolant level sensor installation example
Engine Oil Pressure Switch
– Function 2
The engine oil pressure switch should be located in a suitable oil gallery access port. Use the original
equipment manufacturer (OEM) oil pressure switch as a guide for location. Fit the oil pressure switch using
thread sealant, being careful not to over tighten.
Note
T-pieces are available in most thread types to enable both the OEM and Muirhead
®
Oil Pressure Switches to
be installed into the original port.
Part No. 0018
12 PSI
Normally Open
Thread: 1/8 NPT
Part No. 3074
8 PSI
Normally Open
Thread: 1/8 NPT
Part No. 8725
9 PSI
Normally Open
Thread: 1/8 NPT
Part No. 3755
12 PSI
Normally Open
Thread: 9/16 UNO
Part No. 3429
16 PSI
Normally Open
Thread: 1/8 NPT
Part No. 3430
9 PSI / 62 kPa
Normally Open
Thread: 1/8 NPT
Part No. 2006
Thread: 1/8 NPT Nylon
Tapping drill: 21/64”
Probe length: 30 mm
Part No. 2887
Thread: 1/4 NPT Nylon
Tapping drill: 7/16”
Probe length: 72 mm
Note:
Brass weld
collar included
Part No. 2205
Thread: 1/4 NPT Brass
Probe length: 60 mm
Tapping drill: 7/16”
Radiator
Probe position
Optimum probe level is
⅓ up
from the bottom of the top
hose hole
