I am thinking about ditching my pulley driven water pump for an electric unit. I am worried about an electric water pump being as reliable as a pulley pump. Can anyone comment on this?

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George Carstens

I tried the Davies-Craig EWP Electric Water Pump a couple years ago. What a waste of my time! It actually worked great at pumping the water, unfortunately it can’t keep a seal. Mine leaked after about a week, so they sent me a replacement. That one leaked in a day. Next replacement leaked in less than an hour, next one leaked in seconds. Now they won’t talk to me, honor their warranty, or give me a refund. Davies-Craig advertised an article done by a hotrod magazine that installed their pump on a car. I contacted them to see how their pump was doing; they said it leaked after they wrote the article.

Did you just give up on the idea or did you try another brand?

Was the car you put it in a daily driver or a track car?

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George Carstens

Daily driver/hotrod. I gave up after the four pumps. But, just five minutes ago I noticed a high volume electric pump from Summit racing that fits my motor for $150. Since my mechanical pump started leaking last week, I think I may try this one.

Please let me know how it goes!! A guy I know wants to sell me a pump but he said that he is worried that it is going to be enough to cool a daily driver and he isn't sure that any pump would be enough.

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George Carstens

I ordered the pump today, but it's for my chevota. It only fits a small chevy. Pix: pump
The Davies-Craig pump I tried before was a universal pump because it fit in-line on the lower radiator hose of most any vehicle. It worked well enough for my engine for the few hours that it worked. I want it for the free HP, but mainly to correct the mechanical pumps inability to flow enough water at low or high speed and cooling a hot engine while it’s off.

I have no idea what brand or type pump you want to try, or what motor you’re putting it on, but based on my experience with 12V electric motors I'd say your reliability will go down.

A friend of mine suggested a dedenbear as a good brand. If I can find some fans to clear the front of my engine, then I won't worry about the electric water pump.

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George Carstens

I assumed you wanted it to gain some HP, but I guess it's a cooling thing? What motor is this and what are you trying to accomplish? I’m not the cooling master, but I do have some experience with all the trouble I’ve had over the past ten years, maybe I can help.

This is for a project car. It is going on a 300E engine, that has been built and turbocharged. That engine is in a 190E 2.3 car. I wanted to get rid of the water pump to make room for plumming and so that I could relocate the power steering pump. I think I may be able to keep the stock pump for now. I will know more as soon as I get my radiator mounted up.

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George Carstens

oic. I've never seen one of those pumps myself. 20 gallons per minute wouldn't be enough for me so I never gave them a second thought. I'd ask www.dedenbear.com directly.
Sounds like a tight squeeze to me. My truck is kinda tight too, so I know what you're going thru. I moved my radiator forward as far as I could.
Post some pix when you get that motor in there. I have an '85 190E that is in good shape except the motor is tired. I think a chevy V8 would be sweet in there too.

Someone makes an electric water pump specifically for an Mercedes Benz? Which model MB and what manufacturer of pump?

Thanks,

Jeff

The V8 conversion is not tight at all. Its when you get an inline 6 cylinder and the motor comes all the way up to the front of the car. I will get some pictures up soon.

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George Carstens