I live Canada (Ottawa) and am having an interesting issue with the samurai. The weather now is about -7C and the engine will not warm up. I have the highest temp Thermostat in it with half the radiator covered with cardboard and it still sits just under a quarter after driving it around for an hour [img]images/graemlins/cussing.gif[/img]. I was wondering if there is anything I could try other than putting in a larger piece of cardboard. Should I change the mixture level of the anti-freeze?
might try pulling your manual fan and going with a small electric to save on cost you could pull the manual drive it around some and see if it will warm up if it does then get the electric if it doesnt then it must be somthing else are you shure the motor isnt heating up and it isnt just the guage?
After installing a new radiator,water pump,and thermo my zuk rode just over the 1/4 mark in 90 degree heat at rockcrawling speed. Try covering the whole radiator and see what happens. I don't think running your engine cold is bad, unless your heater is blowin cold too.
I would say that 1/4 of the temp scale is normal temp of my samurai. It was normal on orginal motor, and now it's normal on my 16V one. I have clean radiator, good water pump & electrical fan. The fan had never started to work on a black road. It works only when I'm offroading.
Now I have outside temperature about -3/-5 and half of rad is coverd. Motor temp is 1/4 scale.
THe different mixtures are mainly just jell points for freezing it doesn,t affect engine heat. I like using
clorplast in front of the rad it looks like cardboard cheap or free. Election signs are made of it quite often.Hope this helps.Is the clutch fan stuck on??