Yes am using two washers .....bolt .washer banjo . Washer caliper ...The hose might be upside down against caliper, also r u using copper washers
What should I clean the surface with ?Look at the mounting surface. I have same Callipers one leaked as well cause the metal was not cast properly and it didn't seal.
It should get tight very easily should not be loose at all.
Should be a seal washer on each side of the lineYes am using two washers .....bolt .washer banjo . Washer caliper ...