I’m doing the timing belt on my 200tdi and found slight play in the keyway. Measured it with the callipers and the keyway is about 0.43 bigger than the key. I’m thinking of putting a wee spot of weld on it and dressing it back as we used to do this all the time where I served my apprenticeship…on a bigger scale though. Anyone tried this before. Not got much to lose as if it doesn’t work I need a new pully and damper anyway.