Lol! Jewellery!
Rattley jewellery...
Btw theres a poss it could be cam-wear, if its been (as often is the case I have noted since delving into the Volvo world) incirrectly filled with B5 all or most of its life. There used to be a family cavalier mk2 which sounded horribly tappety, the cam was worn thus the followers keft a gap at rest, couldnt be rectified without a new cam, it was an old car, so it was left-be as performance-wise it was very strong still. The car was bought once rusted through on the basis of its good (albeit noisy) engine for transplant in another cav!