Thanks for the replies peeps.
I am most likely for now at least going to STEAM CLEAN the area then put 5910 all around the edge.
It annoys me as I never have any leaks not a drop as use 5910, got engines in cars done over 100,000 and no leaks with this stuff, it's amazing.
Does not sound too bad just a pain for a few minutes work all the prep/dismantling!!
thanks
tabetha