Could anybody tell me where the temp sensor is, I have fitted a different EBH to the normal one and was just wondering how close it is the sensor. I have also read somewhere on hear that when they started with the EBH the temp dropped 10C ish as the water moved around the engine, is this normal when you start. Thanks
<div class='quotetop'>QUOTE(gazz @ Jul 12 2007, 06:24 AM) [snapback]477422[/snapback]</div> If you are interested in reading the coolant temperature, you might looks at some of the diagnostic scanners. They will also give you access to other vehicle data. Ken has a NHW20 Prius performance scanner that many of the efficient drivers use to optimize their mileage. Finally, there is at least one temperature tap that uses the signals into the hybrid vehicle ECU: http://techno-fandom.org/~hobbit/cars/ect/ I have an earlier model and use this approach: http://hiwaay.net/~bzwilson/prius/pri_temp.html Your Engine Block Heater, how is it different from the usual ones that fit in the block? GOOD LUCK! Bob Wilson
<div class='quotetop'>QUOTE(bwilson4web @ Jul 12 2007, 07:16 AM) [snapback]477435[/snapback]</div> I cannot use your heater as it is not 240V, the one I could get in the UK is for the Prius but it is a shaped plate that is bolted onto the back of the block just below the coolant drain outlet. What I am trying to make sure is that it is fitted correctly, I get about a 25C rise in temperature in 3 hrs, but I get no drop when the engine starts. I have a ScangaugeII so I can see the temperature. Thanks
Gary, In North America we get a temperature drop because; 1) the coolant storage tank places cooler coolant into the engine than that which has been heated by the block heater. 2) the NA block heater is not as powerful as the one you are using, hence there is some coolant toward the front of the engine block that has not warmed as much as at the rear and when the engine starts it circulates this cooler coolant. In the summer with an ambient of 70F I will start with 140F, as the engine starts it will go to 125F and then back up to 140F within about 3 minutes. In winter the drop is usually about 30F-40F at about 30F ambient. Consider yourself lucky that it doesn't drop. Wayne
<div class='quotetop'>QUOTE(FireEngineer @ Jul 12 2007, 08:46 AM) [snapback]477473[/snapback]</div> Thanks for that, I still do not get the rise you get but maybe it is more even across the engine. Is the sensor on the left side of the engine looking from the from.
<div class='quotetop'>QUOTE(hobbit @ Jul 12 2007, 09:00 PM) [snapback]477430[/snapback]</div> Hello hobbit, Would you please let me know where you got the engine block picture? It was taken by myself and copyrighted to me. Regards, Ken@Japan
<div class='quotetop'>QUOTE(ken1784 @ Jul 12 2007, 09:26 AM) [snapback]477486[/snapback]</div> Ken, See as you took the picture, which way round is the engine? Thanks Gary
<div class='quotetop'>QUOTE(gazz @ Jul 12 2007, 11:30 PM) [snapback]477489[/snapback]</div> Ok, Following is my part of the original. It shows more upper and lower part of the picture because I have my original. I'm not saying hibbit stole my picture, but I think he got it somewhere at an internet site. However, I don't agree he placed his mark on my picture. Regards, Ken@Japan edit: I misunderstood your question. It is engine output side.
<div class='quotetop'>QUOTE(ken1784 @ Jul 12 2007, 09:57 AM) [snapback]477498[/snapback]</div> Thanks thats great, that is the opposite side to my heater so the whole engine must be getting warm. Gary
It's the left side of the engine, as it sits right next to the inverter. . Yes, Ken, I did grab it off some random internet site and I don't even remember where now. Note that it's another picture of that same trade-show cutaway that Toyota was hauling around -- you can see the yellow painted transaxle case edges. It didn't have any identifying marks, and since then I put in a bit of work to label it and overlay the potentially confusing manual picture to clarify which sensor is being removed in the diagram. . I couldn't find any copyright mark or credit note as such, but if you would like me to rework it and add some credit icon or other mark that pegs it as yours, I will do so. There are many pictures of Prius parts floating around the net and it's really hard to keep track of which is which, and I've done quite a bit of reprocessing on some of them to clean them up for the training slides and such. When I put work into something, I tend to want to watermark it, too, but not with the intention of treading on any toes. . EDIT: I put up a reworked copy. Let me know if that's okay. . _H*
<div class='quotetop'>QUOTE(hobbit @ Jul 14 2007, 11:32 PM) [snapback]478618[/snapback]</div> Hello hobbit, Thank you for your understanding and updating the credit. I believe any single picture on the internet is taken by an author and it is copyrighted by that person unless otherwise specified to renounce the copyright. Ken@Japan
Ken, perhaps you should put your mark on photos you put on the web so they will not inadvertently be copied. It is difficult to ascertain copyright ownership when several similar images of a familiar object exist. I can't imagine how many people may have taken almost the same picture you did of the cut-away HSD. A visible "watermark" is useful, but can be cropped out in some cases. Another method of copyrighting photos is steganographic watermarking. Examples are the product of the Watermark Factory or Digimarc.
