Guest albere Posted December 15, 2007 hi guys iv just taken off my thermostat sensor on my rad as it was leaking,seems the seal had gone but when it came to undoing it didnt seem tight at all,is it worth getting a new o ring?and do you have to seal with eneything else?or is it worth just doing it up tighter. please reply thanks Share this post Link to post Share on other sites
Tom Fenton 1,541 Posted December 15, 2007 From memory these usually have a copper washer under the hex head to seal them to the radiator. Share this post Link to post Share on other sites
Guest albere Posted December 15, 2007 i cleaned the washer up and tightened it bk on,i stil got a fast leak somehow from the same area??wat is it Share this post Link to post Share on other sites