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PostPosted: Sun Dec 13, 2015 10:18 pm 
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Location: RENFREWSHIRE
I have removed my mechanical water pump and impeller on my Zetec engine and replaced with Craig Davies EWP and Electronic Controller. Works very well but I get no heat from car heater!
Checked for matrix blockage or air locks but all is well. Even with a very hot engine there continues to be cold pipes to and from heater. Craig Davies EWP installation instructions state that Thermostat be discarded. I am wondering if refitting Thermostat would help without upsetting operation of EWP and Controller? Can anybody with EWP/Zetec experience throw any light on problem, please?


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PostPosted: Sun Dec 13, 2015 10:54 pm 
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Location: County Durham.
How have you got it all plumbed in?

Jason.


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PostPosted: Sun Dec 13, 2015 10:59 pm 
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Did you remove the whole thermostat Mike?
I don't use a thermostat (but I also don't have a heater, as you know), but I just removed the centre part so that there is a partial restriction. It could be that with the whole thing removed the water has no reason to travel to the heater it just goes around, whereas with a thermostat fitted some of the water may be forced through the heater?
Just thinking out loud, I'm not sure exactly have the water flows through the thermostat housing.


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PostPosted: Fri Jan 08, 2016 11:20 pm 
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Apologies Jason and JC. Didn't receive any advice that you had posted. Just noticed tonight.
All correctly plumbed in and Thermostat completely removed as instructed by pump Australian manufacturer Craig Davies. Gave them all details and prompt response was I need one of their Booster Pumps designed specifically to allow heater to work! Will not be spending an additional 90 quid on top of over £300 already spent for EWP plus Electronic Controller, etc.


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PostPosted: Sat Jan 09, 2016 12:52 pm 
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Location: Derry Northern Ireland
A heater wouldn't be a priority in Australia I guess ,pitfalls of modifying cars !

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PostPosted: Sat Jan 09, 2016 1:56 pm 
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So. Let me get this straight.
The Davies Craig / Craig David pumps are no good if you have a factory heater fitted?

Doesn't fill me with a lot of confidence. :(

I had considered the option of getting one for my festival as a way of reducing drag on the engine and releasing a Horse or two. If that is the case I certainly won't bother!

Jason.


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PostPosted: Sat Jan 09, 2016 11:10 pm 
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To be fair the EWP has worked very well for last 2 years in my sprint/hillclimb car. As events are not run in winter I had no reason to use heater (demister) and was unaware that it was no longer working until last April/ May when we had some pretty wet/windy/cold events in Scotland and screen heat/demist was much needed. So yes EWP works well, but according to manufacturer may necessitate a Booster Fan to get flow to heater matrix, should you wish this luxury.
As xr2000 commented perhaps heaters are not so essential in Oz.


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PostPosted: Sun Jan 10, 2016 1:12 am 
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I was thinking for a road car.
Totally understand for a race / track car due to the reasons you mentioned.. That and luxuries such as heaters and the water they carry are weight that takes away potential power from a car.

Fine if they say that using a heater in the car may necessitate the need for an additional pump.
But I've had a quick look on their site and nothing jumps out at me to say that.
:/

Jason.


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PostPosted: Sun Jan 10, 2016 11:59 am 
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Maybe a heated windscreen would be the answer ?

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PostPosted: Sun Jan 10, 2016 6:28 pm 
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Heated screen is what I'm going for in my mk1


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PostPosted: Sun Jan 10, 2016 6:58 pm 
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Someone should do a group buy for heated screens.......

I'm sure quite a few of us would be interested in those........

Jason.


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PostPosted: Sun Jan 10, 2016 10:20 pm 
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Jason wrote:
Someone should do a group buy for heated screens.......

I'm sure quite a few of us would be interested in those........

Jason.


as has been proved Jason no they would not !!!! :wall:

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PostPosted: Mon Jan 11, 2016 11:57 pm 
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Look again on site Jason at Electric Booster Pump and it says "Davies Craig developed the EBP designed for use with an EWP to enhance heater".


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PostPosted: Tue Jan 12, 2016 12:12 am 
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It was a very quick mooch I had.
:)
However, I do see that they do a number of different sized pumps.

"You gonna need a bigger boat...".. Erm pump perhaps? :eh:

Jason.


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PostPosted: Wed Jan 20, 2016 12:26 am 
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I am wondering if the lack of water flow to heater could be attributed to the 2 hoses from thermostat housing being inadvertently reversed? Remember it's a Zetec engine (with no thermostat) in a Mk1 and using Electric Water Pump. Wouldn't think it would make hee-haw difference, but perhaps somebody has a thermodynamic viewpoint?


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