Post by
rsdans240sx »
https://forums.nicoclub.com/rsdans240sx-u104010.html
Tue Aug 19, 2008 9:00 am
Sounds like a bad thermostat, every time mine has gone bad and is not opening it boils over into the overflow tank. Reason being it's not going through the motor and is just boiling back into the overflow tank. Also if you recently replaced the thermostat it could be an air bubble in the system. Don't worry about the headgasket, even if the headgasket is bad it doesn't take long to do one and it's actually pretty easy (If you are even slightly mechanically inclined) Cost would be less than $200.00 to fix it yourself and could be done in a day...mine took 6 1/2 hours to do. For $200.00 dollars you could get all new head bolts, a good gasket and a few other things. Plus while you have it apart you can adjust the lifters if they need it, clean stuff and make it run better!