Section One: Installing The Ewp; Installing The Ewp & Fan Digital Controller - Davies Craig EWP-FAN Installation Instructions Manual

SECTION ONE: INSTALLING THE EWP

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The EWP should fit in the lower radiator hose connecting the radiator to the existing mechanical water pump
housing. Check the area for available space and shape of the lower hose. The section of radiator hose
connected to the bottom of 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 and outlet are marked on the pump. The EWP
possible to maximise the gravity feed from the radiator and prevent air entering the pump.
1. Configure the electric pump so that the motor‟s black rubber drain boot is at 6 o‟clock, that is, pointing
down so that any condensation forming in the motor will drain. If the EWP
positioned with the rubber drain boot at 6 o‟clock, the motor can be rotated 180. This in most cases will
allow the rubber drain boot to be positioned in the preferred 6 o‟clock position. To rotate the motor,
follow these instructions:
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a. Turn EWP over to gain access to the 2 screws, which fasten the motor to the pump body.
b. Slowly unscrew the first screw halfway, then unscrew the second screw all the way and then finally
unscrew the first screw totally. Be careful not to alter the alignment of the motor shaft when unscrewing
the screws.
c. Carefully ease the motor away from the pump by no more than 1 mm.
d. Rotate motor 180C, keeping the shaft square and making sure no plastic shavings lodge between the
motor and mounting surface.
e. Fasten motor to pump body. Slowly tighten the two screws incrementally until both are home. Do not over
tighten.
If it is impossible to mount the boot at 6 o‟clock, cover the rubber boot with silicon to ensure no water can
enter the motor. Assemble the EWP
space available. Make sure that the adaptors have an o-ring (Item No: 7) between them and the flange
faces on the pump body. The short bolts (Item No: 11f) supplied should be used to connect the adaptor
(Item Nos: 5&6) to the inlet face and the longer bolts (Item No: 11i) to connect the adaptor (Item Nos: 5 &
6) to the outlet face with the nuts (Item No: 11g) provided. The washers (Item No: 11h) provided should
be used between the bolt head and the flange face and between the nut and flange face.
2. Add the appropriate thickness rubber sleeves (Item No‟s: 8 & 9) to the adaptors (Item No‟s: 5 & 6), if
required, to suit your particular hose diameter.
3. Cut out the required section of the lower radiator hose. Connect the pump inlet and outlet to the
appropriate hoses ensuring that the pump is oriented in the CORRECT ORIENTATION as shown in Fig
9, page 9 "BLEEDING THE EWP
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Do not bleed EWP until you installs the digital controller and disables the mechanical pump.
SECTION TWO:
INSTALLING THE EWP
Do not begin the installation of the Digital Controller prior to the EWP
1. The controller must be fitted inside the passenger compartment. Locate a hole in the firewall (approx.
20mm in diameter) where the harness wiring (including the sensor & pump "T-connector") will be able to
pass through. If a spot of adequate size cannot be located, then wires may be cut then re-joined as a last
resort.
2. Pass the "T-connector" of the wiring harness though the firewall into the engine bay and connect to pump.
3. Pass the black sensor connector through the firewall and out to the thermostat housing/ Inline adaptor
(Refer page number 3 to 5 on installing digital controller sensor)
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plastic adaptors (Item No‟s: 5 & 6) to suit the hose configuration and
® ". Ensure hose clamps are tight.
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& FAN DIGITAL CONTROLLER (Refer Figure 2 below)
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should be positioned as low as
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cannot conveniently be
being installed.
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