if the leak is between the cover on the top of the stabiliser valve 82600810, you will need to take the lid off by removing the 4 screws on top, clean rubber diaphragm inside then get on a lathe and machine a 2mm o ring groove into the round bit of the lid and fit an o ring. works absolutely perfect. glues and silicons won't work because of the type of plastic it is made from.
dave mckenzie
May 2009