Well done VV, I love a good outcome....
Sorry Id missed the part about it coming out from under the cap and focussed solely on the breather spraying problem and would have suggested an oring seal or washer for the issue. But you worked that bit out on your own
I also use washers occasionally as the hard plastic cap is not always a good seal even with the baffle insert, especially if the tank neck surface has any imperfections.
The metal rotomo caps just usually require a perfect fit cork washer with offset hole to seal.
With this issue sorted, I can now say....WOW! What A fantastic restoration of your Model 5 S1 Special. Beautiful paint and detail, Well done.
