Problem: Risk of valve damage due to incorrect camshaft timing after belt replacement.
As on most Peugeot engines the crankshaft and the camshaft can be locked into position by inserting pins through the respective pulley and sprocket. On models with harmonic balancers the outer section usually moves its position relative to the center. The reference hole provided must therefore never be used to set the crankshaft.
Although this problem was first discovered on a 306 XU7JP engine, it can occur on any model, which is fitted with a similar pulley.
See in the section below how to correctly position the camshaft.
ash has attached the following image: