How bad my engine was after 3 miles riding without coolant?
I decide to share my stupidest riding ever.
I use distilled water in my bike always.and I totally forget that I let my buddy drained the water out for me in the winter.so there is nearly no water in the engine.
I push my bike out of garage,fired up,wait few minutes to see 175 F showed in the gauge,and then,I take riding for the gasoline.
Maybe after 1 mile riding,I see the temperature rising very quick to 221 F,so I stop the engine,I wait the temperature drop to 190 F and ride for minutes and the temperature go up to 221 F again.I know some thing must wrong,so I stop the engine again,wait for minute to see the temperature go back to 190 F and then go back to home.
There are 3 miles riding total I think,I did not ride hard,rev not above 7K rpm I think.
I did not realize how serious the thing would be at that time.I just fill the radiator,and then go for my first track day.
But I immediately found my bike have overheat problem on the way to the circuit.the temperature reach 230 F on the road，and I have to ride fast to let more wind coming in.
Things become worse ,after 7 laps track riding,the temperature above 239F and I get high temp warning showed in the gauge when I go back pit and shut down engine for a while.I go for another 7 laps in next session, same thing happen.
Now , the temperature will slowly go up constantly even in idle. Fan is OK,water pump seems ok because I see water flow when I take off the radiator cap.I remove the thermostat,the same results.The radiator have over-flow problem if i take the radiator cap off. and I see some oil inside radiator.I assume that I blew the head gasket already.
I am depressed now,although I did not notice power lose in the track,but I do notice that I need fire 2 or 3 times to start the engine.I usually only need one fire.I don't know how bad my engine was inside now. and I am not sure,even I assume the engine run fine after head gasket change,how long this engine can stand for the track use.also,did I blew the water pump seal?
Sorry for the long story,any input will be much appreciate!!
Last edited by plasticbaby; 04-04-2015 at 12:12 PM.