thanks
found the fault..
very strange. Took the front bolt out which holds the bracket on the tank and it slowly dripped petrol out of the hole. Place some gasket sealant around the bolt and screwed it back in....2 days gone and so far so good.
Not 100% sure of the JD weld regarding holding back the petrol, but as it can take a hell of a lot of heat and lbs per square inch, figured it shouldn’t be too porous and so shouldn’t leak.
if the gasket sealant holds then ill keep with that, as JD weld is very permanent in this situation once its use.
cheers