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The Mad Hat Man

Well-Known Member
LZIR Despatch Agent
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Embasinga stocæ
daviscraig_ewp_80_electric_water_pump_z1.jpg

8005%20Specs%20Sheet.jpg


Or if you dont want a "proper" EWP - and just want to assist the cooling then maybe this....

dav_elec-wat-pump.jpg



Just the thing - how you could make it out of sealing wax and string - i dont know ;)
 
I emailed Richard Davies about this a while ago, here's what he said in answer to my questions (in italics):

Hi there,

I'm strongly considering installing an EWP and controller into a 2004 Land
Rover Freelander (1.8, petrol K series engine) here in the UK. I have no
doubt that you've had interest from other car owners with a K series engine
as they are very sensitive to overheating leading to head gasket failure.

YES - CAUSED BY HEAT SOAK - THE DAMAGE IS DONE WHEN YOU TURN OFF A HOT
ENGINE.

My question is whether I could use an EWP to completely replace the
mechanical pump
, YES YOU CAN - AND YOU WILL HAVE BETTER FUEL CONSUMPTION
AS WELL AS AN INCREASE I AVAILABLE POWER

and also whether it would enable me to remove the thermostat on this
particular vehicle
. YES - BEST TO REMOVE THE THERMOSTAT . JUST CHECK RE A
BYPASS

WHERE THERE IS A THERMOSTAT BYPASS


In some engines including some made by BMW & ROVER, there may be a bypass
from the thermostat back to the water pump chamber so that when the
thermostat is fully closed, coolant passes directly from the engine block to
the thermostat housing and then straight back to the block without passing
through the radiator.

When the EWP is fitted, some coolant will pass in the opposite direction
along the bypass from the radiator to the pump housing and back to the
radiator without passing through the engine.

In those cases, the bypass has to be blocked off when the EWP is fitted!


MORE INFO ON YOU TUBE AT http://au.youtube.com/watch?v=nrfux_-6RVwy

I have had difficulty getting straight answers on forums etc so I thought it
would be best to contact you directly. I'm very impressed with how this
system looks, and it's great to see a cost-effective system to improve
emissions and engine life. Any advice you could provide me with would be
very much appreciated.




Best regards

Richard Davies
Managing Director

Seems like it would be a good buy.
 
Where's the backup on an unmodded freeb when the PRT fails ;)? I suppose we just have to trust it - unless there is some kind of redundancy one could build in. I'd be inclined to trust an electrical system like this until it's proved to be untrustworthy.

I think I read somewhere that you can just remove the pump impeller and drive belt from the mech pump. Hence it just becomes part of the plumbing from the EWP's perspective.

EDIT: AGH Hatman beat me to the point there :D!!
 
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Where's the backup on an unmodded freeb when the PRT fails ;)? I suppose we just have to trust it - unless there is some kind of redundancy one could build in. I'd be inclined to trust an electrical system like this until it's proved to be untrustworthy.

I think I read somewhere that you can just removal the pump impeller and drive belt from the mech pump. Hence it just becomes part of the plumbing from the EWP's perspective.
the prt is the mod :confused: :p
 
In fairness, dispite my, somewhat tongue in cheek, reply above. It is common practise to have both systems running in tandem, so that if the EWP fails, then the mechanical system is enough to get you home.
 
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In fairness, dispite my, somewhat toungue in cheeck, reply above. It is common practise to have both systems running in tandem, so that if either fails, then the mechanical system is enough to get you home.

ah-ha, it'd make sense, but i do get your point about having back-ups for everything......it's not a Klingon battle cruiser :D
 
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