Pressure release valve in radiator ?

John,  With respect to the water level when cold was this level above the core?  Lastly it sounds like the water was not originally returning as there was not a partial vacuum. What did you do to make the cap seal?    Richard Melbourne Posted by RichardWallach 20/05/2019 08:45:00

Richard,  Apologies for the delay in replying! didn't see this on page 2!  Yes, level well above core and below the overflow valve.  The radiator cap has approx 3 mm thick neoprene gasket underneath.  [attachment=0:a40nl4xr]<!-- ia0 -->IMG_0044.JPG<!-- ia0 -->[/attachment:a40nl4xr] Posted by johnlayzell 04/07/2019 19:57:54