Welcome to the Nissan Patrol forum. To post a question and to see less adds on the forum then you will have to register
first. We are an easy going friendly forum so join in the conversations and feel free to ask any questions.
Become a forum sponsor for only $20 and see no adds with faster page loading times and many extras benefits.
See if you can tighten the bolt at all, it may have had a knock and be a bit loose.
But It would be a good idea to replace the hose and the two copper washers.
If you cant get the washers, just heat them till red and let them cool, they will then be soft again and can be re-used.
Cheers, the ferret.