Not sure on the torque setting for the timing cover,
There is a link on the site somewhere for all torques.
These bolts are single use stretch tension bolts.
They are about 2 quid a time. Before you take them out. Ensure you have a very light thread lock, remove, inspect, clean up with brake cleaner all mating surface. Check gasket. Then re assemble, with just a dot of locking compound. NO MORE.
Then torque down, add an extra 16th turn to activate the compound