206 crank pulley seal help!

hello friends 206 my crankshaft pulley motor belt pulley has worn out so oil is missing oil pulley needs to be dismantled and the pad needs to be changed.

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If you take it to a master in the industry, it will replace the belt that will disassemble the belt, change the felt, I don't know what the material will be, but it can be 100 TL or 80 TL. Show me, let's see if it is too expensive. or ask the 3 5 master, see who will give the lowest price.