Originally Posted by 
gromit
				 
			I noticed that the dipstick holder had broken free on the LH tank so I decided to remove the tank, clean, fix the dipstick holder and paint.
One of those jobs I wish I hadn't started !
Dropped the tank and found that it had separated from the cradle it's soldered to.
Looks like there was quite a gap between cradle & tank with solder really only holding around the edges and the holes through the cradle. The gap held water and caused corrosion.
I've melted off the solder 'bosses' and the solder around the edges. I'll de-rust, paint and Sikaflex the tank to the cradle then solder the dipstick holder back in place.
Colin