Spotted I was losing small amounts of coolant and managed to trace it back to this.

Is this the offending part, for a 1989 2.1? http://www.brickwerks.co.uk/index.php/t ... 3-wbx.html" onclick="window.open(this.href);return false;
And can someone please point me in the right direction of the connecting rubber hose.
Cheers