I did once have a core plug popped due to the water jacket freezing when I forgot to check the anti-freeze. The mechanic who repaired it for me acted as if that was a fairly normal occurance On 22 November 2014 at 16:15, Joe Wronski wrote: > That caused me to go to wikipedia, which calls freeze protection a myth. > > > Now that I think of it, I had and heard of cases where coolant blockage > from freezing causes overheating, but never that someone needed to > replace the plugs because they did their job. Rusted out, but not > popped due to freezing. > > Joe W > > > On 11/22/2014 3:51 AM, Justin Richards wrote: > > Thanks rich, > > > > I can imagine from your explaination that there's many stories of peopl= e > > driving of without unplugging first. > > > > And wrt the plugs I take it from the description it is what I know as a > > welch or core plug that are used to plug the holes that the moulding sa= nd > > is poured out of. > > > > Cheers Justin > > > >> There is another type that is inserted in to the engine block in > >> place of what we Americans call a freeze plug. I believe you folks cal= l > >> it a soft plug. Again you plug it in at night and it will keep the > >> coolant at about freezing in 30 or 40 degree f below zero temperatures= .. > >> > > > -- > Joe Wronski > jwronski@stillwatereng.net > www.stillwatereng.net > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 __________________________________________ David C Brown 43 Bings Road Whaley Bridge High Peak Phone: 01663 733236 Derbyshire eMail: dcb.home@gmail.com SK23 7ND web: www.bings-knowle.co.uk/dcb --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .