Davies Craig EWP-115 Installation Instructions Manual Download Page 1

 

 

P/No:8923 

 

 

 
 
 
 

  

 

 

 

 

 
 
 

 

EWP

®

115 INSTALLATION INSTRUCTIONS 

 

DAVIES, CRAIG EWP

®

 (ELECTRIC WATER PUMP) AND OPTIONS FOR PUMP CONTROL 

 

Congratulations on your purchase of the Davies, Craig EWP

®

 which is designed to replace or supplement the 

existing belt driven mechanical water pump of your engine. Your EWP has very high flow capacity and has the 
advantage of running at a speed independent of the engine speed. The EWP

®

 can also be set to continue running 

after a hot engine shut down to prevent damaging heat soak. When your EWP

®

  is  used  to  replace  the 

mechanical pump, you will notice an increase in engine power and torque, especially at high engine speeds.  
Automatic gear changes, both up and down, will be smoother.  

PLEASE READ THESE INSTRUCTIONS IN THEIR ENTIRETY BEFORE YOU START WORK 

ALSO NOTE THAT THE EWP IS A ‘CIRCULATION’ PUMP IDEAL FOR ‘CLOSED CIRCUIT’ OPERATION SIMILAR 

TO AN AUTOMOTIVE COOLING SYSTEM. IT IS NOT A ‘SELF-PRIMING’ PUMP AND THEREFORE WILL NOT 

OPERATE WITHOUT A POSITIVE ‘HEAD’ IN AN ‘OPEN’ SYSTEM.

 
 

EWP

®

 COMPONENTS:

 

 

No. Description   Qty. 

1. EWP Pump Assy. 

2. Wiring harness with 10A fuse 

3. Rubber Sleeves 

4. Hose Clamps 

 

HARDWARE COMPONENTS: 

No. Description   Qty. 

5. Hardware bag 
     --Relay 

   

 

   1 

     --Scotch lock  

                 1 

    

     --Ring Terminal 

 

   1 

     --Self Tapper  

                 1 

 
 

 

                     

 

     SECTION ONE: INSTALLING THE EWP

® 

115 

 

1.

  The  EWP

® 

115 is best fitted in the lower radiator hose connecting the radiator to the existing mechanical 

water pump housing and let the hose hold the weight of the pump and it will dampen from vibration too. 
Check the area for available space and shape of the hose. The section of radiator hose connected to the 
radiator must be connected to the inlet of the electric pump and the section of radiator hose connected to the 
original pump/engine block must be connected to the outlet of the electric water pump.  The pump inlet is in 
the centre of the pump.  The EWP

®

 should be positioned as low as possible to maximise the gravity feed 

from the radiator and prevent air entering the pump. Alternatively, it can be fitted in the upper hose, but in 
this case the coolant level must be maintained and now the section of radiator hose connected to the top of 
the radiator must be connected to the outlet of the electric pump and the section of radiator hose connected 

 

 

 

 
 

 

 

 

 

 

  

 

  

  

 

  

  

DAVIES,  CRAIG 

PROPRIETARY

 

      

LIMITED

   

A.B.N. 71 004 918 825            A.C.N. 004 918 825 

MELBOURNE

              

AUSTRALIA

 

77 Taras Avenue 
P.O. Box 363 
Altona North 
Vic 3025 Australia 
Phone:  +61(0)3 9369 1234 
Fax:       +61(0)3 9369 3456 
Email: [email protected] 
Web: www.daviescraig.com.au 

ISO 9001

 

 

Lic No 4528

Standards

 

 

Australia

Summary of Contents for EWP-115

Page 1: ... bag Relay 1 Scotch lock 1 Ring Terminal 1 Self Tapper 1 SECTION ONE INSTALLING THE EWP 115 1 The EWP 115 is best fitted in the lower radiator hose connecting the radiator to the existing mechanical water pump housing and let the hose hold the weight of the pump and it will dampen from vibration too Check the area for available space and shape of the hose The section of radiator hose connected to ...

Page 2: ...ter Pump EBP Part Number 9001 to the heater line OR 2 With Davies Craig Thermal Switch P No 0401 Combine the EWP with a thermal switch when the EWP is used as a booster pump to the existing mechanical pump to fix an overheating cooling system With the thermal switch connected to the battery the EWP will run on after a hot engine shut down eliminating heat soak Leave the thermostat in place but mak...

Page 3: ...to direct sunlight 3 An additional screw is provided for mounting controller fuse holder where necessary 4 Mount Remote Test Light in a location which will be visible The Test Light may be fitted by inserting it through a 4 6mm drilled hole in a plastic area of the interior dashboard or simply with adhesive tape 5 For installation of the sensor in the position of the thermostat refer to the Digita...

Page 4: ... copper bulb at the end of the capillary down over the radiator inlet ferrule so that it protrudes no more than a few inches into the radiator hose You may choose to use insulation tape to hold the seal in place while the hose is refitted Replace radiator hose position hose clamp across centre of seal with the clamp screw on the opposite side to the capillary A good silicon type sealant may be use...

Page 5: ... housing without the impeller ensuring that there is no damage to the water pump gasket and the pump seal is still retained Re fit the water pump belt and tighten to manufacturer s specifications Or 1 By pass the belt drive on the water pump if possible by installing a shorter belt that omits the pump pulley Refer example diagram in option 1 And a Remove the thermostat from the thermostat housing ...

Page 6: ...he pump can be set up in another orientation upon completion of the bleeding procedure FIGURE 1 BEST ORIENTATION INLET INLET AIR POCKET FIGURE 2 INCORRECT ORIENTATION 1 Fill up the cooling system with appropriate coolant 2 Do not run the engine but hardwire the pump direct to the battery so that the pump runs at full power 3 With the radiator cap off run the pump for 5 10 minutes to ensure that th...

Page 7: ...d to preserve warranty Do not use the vehicle s engine management system or wiring connected to the vehicle s engine management system as an ignition source because it may cause failure of the management system and or the electrical system The ignition source must be a steady positive supply of 12 14V DC Vehicles with both heater circuit inlet return and outlet ports in the mechanical pump housing...

Page 8: ...of the part s and is not due to installation other than described in these instructions Labour and consequential costs are excluded DAVIES CRAIG PTY LTD 28 11 2008 WARRANTY REGISTRATION Part number 8025 Electric Water Pump EWP 115 Name ______________________________________________________________________________ Address _____________________________________________________________________________...

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