boarderbas schreef :
Gui,
Maybe English is better?
De-air the seal by squeezing it open untill water leaks out, Then lubricate with silicon grease.
If it made noise, I bet it is destroyed by running uncooled by water without lubricant.
I strongly advice to replace it.
The Allpa "volvo style" seal is (to my belief) better and cheaper.
Thanks for your reply. I always squeeze the seal when back to the water and lubricate with Volvo grease. When the boat was on sea water had no problem so I would like to know if somebody else have this problem with the boat on fresh water. The boat has been afloat all winter and no water inside.