Maintenance & Technical > KX500 Original
Coolant in KX500
dave916:
most road racing bikes here in the uk are only allowed to use distilled water , with no problems , once new a guy who spent weeks trying to fix a overheating problem after fitting a rg500 engine to rgv250 [trying bigger rads etc,] turned out he had not mixed his coolant with water, some coolant is thicker than water slower circulating, dont know much about evan coolant but if it does not boil until 365f is going to be hard to know when your bike is over heating? i would not use a lower psi cap , the more your pressurise water the higher the boiling point,
agraebner:
Evans coolant is designed for maximum heat transfer and is viscosity correct. You NEVER want boiling. As soon as boiling starts there is no longer contact of liquid to your water jackets it vaporizes there and in the head first as they are the hottest. ass soon as vaporization ( boiling ) happens you loose the heat transfer of your cooling system. the boiling point evans gives is with no pressure. Be relieveing pressure you get rid of the chances of blow out of hoses and wear on seals such as water pumps as the pressure and temp rises. You can get stick on temp indicators to go right on your cylinder. I believe proo circuit makes them too. Dave is absolutly correct most types of coolant REQUIRE water or you will get poor cooling. The evans coolant was designed for high performance applications and racing. Truck drivers use because it doesnt need additives to prevent boiling and cavitation or corrosion resistance. It has since been used a lot in high performance and racing engines as well as motorcycles. It is on a small list of allowed coolants at some of my local drag tracks. check out evanscooling.com for more info ( I am not affiliated or a dealer for their products I just have seen benefits and its proven itself to me personally)
cbmoor:
I was using normal coolant in my crf and at one meeting which was really muddy it boiled over since then I have used Engine ice and it never happened again and I have been in the same conditions since and now using it my KX, it is pricey but so is an engine rebuild if it gets to hot and not noticed
martinfan30:
So would distilled water be a viable alternative ? If you drain it after each ride?
Larry Wiechman:
Pure water is an amazing coolant. The less additives used to combat corrosion or freezing, the better.
http://www.engineeringtoolbox.com/ethylene-glycol-d_146.html
Larry
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version