2007 Electric Water Pump Conversion [Engine's]

Where did you read about converting it? I don't think anyone has done that on gen2

SM-N900P ?

 

Even if a conversion is possible, it would be terrible expensive......and might not last longer than 92K miles either.
Consult an independent shop about a new belt.
They usually can do it for about half the price, and often with exactly the same belt too.

 

i have never read about this being done, iirc. put a new belt on and enjoy, the gen II is a great car and the gen III is only marginally better. all the best!

 

You are on the GenII forum asking specifics on a Prius C. You should switch forums and HOPEFULLY find someone that's more knowledgeable about the C and what you are attempting to do with a GenII. I think someone had asked about doing this before and Patrick Wong had answered some of the questions you raised. End result I believe was it didn't happen.

 

i am POSITIVE this cannot be done.

 

I too have considered this conversion. However mainly because of the cost of the Prius C pump it is not cost effective. There are small problems to overcome as far as control is concerned, but nothing major. A simpler cheaper method would be to use a pancake motor driving the existing pump directly.
Control can be as simple (turn on/off with the engine) or as complicated (speed control by temperature and time delay off as engine shuts down) as you wish. The pump could also run to pump heated coolant to provide cabin heat removing the need for the extra electric pump at present used for this.
The reliability of the C pump is unknown, it could be a number of years to get reasonable figures.
As an exercise I will do this conversion when I can find a C pump "possibly from salvage" at a realistic price.

John (Britprius)

 

WOW

 

FYI
I have consider this modification as well and kinda got same posters. Britprius was the only true contribitor last time as well.....

There are several quality DC electric circulation coolant pumps out there...The Prius C is a starting point..... Bosch/bmw /merced basic german mfg/design are of good quality and may work too.

The Gen 3 prius went to a dc setup because less is more......the gen 2 during ice is constant move coolant which is not helpful with cold start/warmup cycle/

My concerns are the opening created when removal of the belt pump style is removed, wiring, and cut in cut off cycles

I am going toss this out here too has anyone consider a non 50/50 coolant......that is most coolants have a mix of water/silica/dye....... i am curious about evans coolant
Home » Engine Cooling Systems

 

Yes fix the belt and forget the conversion to the gen III electric pump, in the long run you will save money.

 

The gen3 pump will not fit the gen2 engine, but the C pump does as the C uses the same engine as the gen2, and as such is a direct replacement or gen2 mechanical pump. The only real modification being the control circuitry.

John (Britprius)

 

seems like a rube Goldberg mod to me; the mechanical pump does its job just fine, is inexpensive and very easy to replace with simple hand tools. the belt is also very easy to replace and no special tools are needed either. now, if someone does decide to do this, I'd love to read about it and see pix showing the installation, but I think its kinda pointless.

 

none

 

Still have to say why bother, putting on a new belt will be cheaper in the long run especially considering the limited advantages and the miles already on the car.

 

my question is, what are the advantages? does it completely eliminate the belt? is there a payback for the time and trouble?

 

Might not be possible because the "circuitry" might involve one of the ECU modules, which would almost certainly be Prius c specific, and not interchangeable with the Gen2 Prius.

SCH-I535

 

This seems like one of those things that is done for the fun of it. The risks vs rewards and potential cost don't really justify doing it to save money or to make it more reliable. If you want the cheapest, most reliable solution to keep your car running for many more miles, just place the belt and the water pump if needed. If you want a neat project, go ahead, sounds cool.