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07-16-2007, 04:49 PM | #1 |
11b1p
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electric water pump help!
Well I decided on the Meziere wp136. it's "universal". The problem is that I don't know which direction the coolant flows. From the lower hose to engine or from engine to lower hose. I will be putting it in this weekend, but don't know which direction.
I appreciate any help. |
07-16-2007, 05:11 PM | #2 |
Drives: Yaris LB Turbo Join Date: Aug 2006
Location: Miami FL
Posts: 782
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Why would you spend you $$$ on that?
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07-16-2007, 07:30 PM | #3 |
Drives: 07 HB Join Date: Apr 2007
Location: Canada
Posts: 110
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Im assuming so he has one less thing for the engine to move.
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07-16-2007, 07:47 PM | #4 |
hot coolant goes thru the thermostat into the radiator. so if the lower hose has the thermostat(?) then is from the hose to the engine. if its on the top hose then from the engine to the hose.
http://auto.howstuffworks.com/cooling-system2.htm and why are you doing this again? to free up some horsepower and better fuel economy??? |
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07-17-2007, 12:20 AM | #5 |
11b1p
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joey1320
I was kind of thinking that but didn't want to dive in. So far I have about $230.00 invested in the project. There are a number of Electric water pumps. all over $170 I really think that taking the water pump off of the belt will free up 1-5 whp. btw, that is about the price of a good cai. The only real concern i have now is that there will be about 1" of clearance on all sides. |
07-17-2007, 01:17 AM | #6 |
Clean and (dis)Functional
Drives: Yaris 2dr--Black Betty Join Date: Mar 2007
Location: Tropical Minnesota
Posts: 562
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Usually the hot coolant from the engine always goes to the top of the radiator....this is because the hottest coolant stays in the top of the radiator(hot liquid lighter than cold), as it cools the liquid sinks to the bottom of the radiator and returns to the engine. Can't recall seeing it any other way.
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____________ Old School Cobble Jockey |
07-17-2007, 01:30 AM | #7 |
11b1p
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The Thermostat is on the lower hose. per CO-17 yaris manual here at yarisworld. That is what is confusing me. I guess on saturday after About one beer I will remove the upper hose at the radiator and crank the engine to see which side spews. then adjust accordingly
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07-17-2007, 02:29 AM | #8 | |
vroom vroom
Drives: lil red 5-door Join Date: Sep 2006
Location: Bangkok, Thailand
Posts: 7,744
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Quote:
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The price of freedom of religion, or of speech, or of the press, is that we must put up with a good deal of rubbish. - Robert Jackson Bye bye 1NZ... |
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07-17-2007, 07:56 AM | #9 |
good luck with the project. keep us updated.
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07-17-2007, 10:29 AM | #10 |
I'd consider running some kind of warning light into the cabin to let you know when the pump is actually running, just in case it stops working for any reason.
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07-17-2007, 10:50 AM | #11 |
Drives: 2005 Scion xB Join Date: Nov 2006
Location: The Black Hills of South Dakota
Posts: 1,059
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Every car I have ever worked on dumps hot coolant out the top hose and pulls cooled coolant in through the bottom hose. I guarantee it is the same on the Yaris... Toyota puts the thermostat on the engine side of the lower hose on many engines, but they still flow the same direction.
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07-17-2007, 10:56 AM | #12 |
11b1p
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that's a good idea about the warning,Maybe some kind of L.E.D. on the circuit. I am pretty confident that the pump will function fine. The only reason I say this is that the pump company is known in the Hot rod market to work.
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07-17-2007, 11:56 AM | #13 | |
Drives: Yaris 3 Door, 04 WRX, 69 Lotus Join Date: Apr 2007
Location: norcal
Posts: 128
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Quote:
What are you doing about the OEM pump? As for warning lights... You already have one, the H2O gauge ;) |
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07-17-2007, 12:32 PM | #14 |
Drives: 07' Yaris Liftback - silver Join Date: May 2006
Location: Springfield, Mass
Posts: 475
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get a scanguage, it will show you actual water temps. cool to watch!
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07-17-2007, 02:25 PM | #15 |
11b1p
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I don't have the scanguage, but i have an obd2 that reads all the good stuff.
This is a more accurate account of expenses so far.. Water pump 186.50 2 x hose fittings 15.99 1 belt 377k4 8.99 (measured with string) relay mr44 5.99 hose clamps 1.99 wire and ends 10.00 total 245.00 +-change I will leave the OEM pump in place for now. I will remove the pulley. Later I will purchase a new gasket for a pattern and a sheet of 1/4" aluminum. Then Dremel and drill a cover. |
07-17-2007, 04:22 PM | #16 |
Mr Attitude
Drives: Blazing Blue 5 Spd Join Date: Jun 2007
Location: Hillsboro
Posts: 302
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This is a very interesting mod, actually seems worthwhile. As for the blockoff plate, maybe it could be used as your mounting point for the electric pump? Also, a good shop (like the 1 I work at) could make your plate for you very easily. If you have the patience and knowledge to create a good CAM file for what you need, a good sheetmetal shop could pop one out laser cut in minutes...maybe even to stuff like tap and countersink for you...just an idea. And once the hard part is done, you can maybe make some money selling them...
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It's scary to think that half the people surrounding you are below average... |
07-17-2007, 07:31 PM | #17 |
Drives: 08 Yaris Liftback S (RIP 07) Join Date: Apr 2007
Location: Fair Lawn, NJ
Posts: 1,378
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i would be interested in this water pump... i dont know if u mentioned the company.. and what type
EDIT: nm first post lol disregard that
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"It hurts more when its wet" |
07-17-2007, 09:40 PM | #18 |
Drives: 07' Yaris Liftback - silver Join Date: May 2006
Location: Springfield, Mass
Posts: 475
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A dyno before and after would be good, to see if it actually does anything
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