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Davis Craig Ewp115 Electric Water Pump On My Zetec


speedtripledan

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One small issue I now have is I cannot get my zetec hot enough it runs at 80deg and takes up to 15 miles to reach temp. The new cooling system I fitted is basically to good, getting a suitable stat for the race line waterrail is limited and getting more scarce by the day it uses the old X flow stats.

The electric pump will address all issues, fast warm up and ability to select running temps then the engine cool down after a run. 1 other bonus is increased power and a better mpg (apparently) Will update once it's here and fitted.

 

Ironic really all the trouble people have trying to keep there temps down and i.m trying to raise mine.

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Relatively common problem with zetecs in sevens. Westfield board published a duff cooling circuit diagram which has been much used so lots their zetecs suffer from overcooling too. IMO the raceline waterail is a flawed piece of kit. Never fitted mine. Sold it at a loss. Much better to use the original stat housing. Never had a problem with silver/black/ST zetecs in mine.

DC leccy pump may well make it all good for yours.

 

Nigel

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Mine was borderline on cooling before putting the charger in, it's the new coolex rad that is causing the additional cooling. It just shows shows how good the rad is versus your standard polo/ golf item that I had before.. it's also another "cool" upgrade to add to the list on my car

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Surely a bigger or more efficient rad doesn't cause excessive cooling. It's the thermostats job to regulate the water temperature and if it's too cold, water shouldn't be going through the rad? If the coolant temperature is 80° and the stat is rated at 88°, then the stat shouldn't be fully open.

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Stat in the wrong way, or some aspect of the cooling system bypassing it (presumably not enough pressure on one side/too much on the other, forcing water to bypass it)? I found on my GTM that drilling some 3mm holes on opposing sides of the rim of the thermostat really helped the K-Series open it quicker, a bit of a must when the cooling system was modified so much from the original concept in the Rover 100/200/400/etc...

 

But, never let a forum post stand in the way of you fitting some technical goodies to your car ;) ! I quite fancied an electric pump on the Zero because of the K-Series also - not really for cooling while running, but the ability to continue to circulate coolant after shut-down would be very useful.

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