crankshaft bolt change it ?

[jpliddy]

hi thanks for your reply , i won't know condition of crankshaft bolt till garage remove it, from memory it may not have ever been changed at cam belt replacement, so with this milage i have another bolt but its a FEBIE brand ,my current belt is on 55000 and 6 years old miles so it needs changing soon do you agree ?
also i think theres a oil leak onto the front outer edge of the cam belt its tiny at moment as its not wet but a little bit greasy ,i with it with paper towel now and then so i think leak is from the idler bolt which goes right into the engine im told as 2 lads over here had this leak they dried the bolt and applied a permeated thread sealant which did the job ive ordered some just also when the crankshaft bolt goes back on do you recomend a thread lock glue ? so new belts gates brand
idler, tensioner , water pump and new coolant too , . my car starts 1st time every time so do i tell my garage to check the timing according to my volvo service bulletin it shoud be 0.95mm