Many thermostats already have a bleed of some sort. Some are more obvious than others - from a little valve on the flat part to a small notch in the seat of the actual opening/closing part. Others have to be "modified". : ) Ken Quoting Tom Jennings <tomj@xxxxxxx>: > > Did you get all the air out of the system? I rarely have a problem with > that, but once in a while, air gets trapped and prevents water from > contacting something in there (head, etc). I put one of thos ePrestone > flush tap things in the literally top-most radiator hose; when I fill > the radiator on my Hornet, with it warming up, I crack the Prestone > thing cap loose, and a lot of air hisses out, then liquid. > > Another thing that helps -- and this is so stupidly simple I can't > believe they don't all come this way! -- is to drill a 1/6" or 1/8" hole > in the thermostat (carefully) so that it flows a tiny bit of water even > when closed. > > The amount of water flow does nothing; but it allows air bubbles to leak > through, and the system will self-purge (into the highest point, > hopefully the radiator tank!). > > I found this on the net, and it's one of those things that can't go > wrong, even if it doesn't solve your problem no harm done. > _______________________________________________ > Amc-list mailing list > Amc-list@xxxxxxxxxxxx > http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list > _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list