Clean the holes out make sure they are clean and without any oil ,or the repair wont work .Fill the holes with plastic metal .Push the bolt in and let it set for a day .Then unscrew the bolt , Then ,clean the top of the hole flush .These are very low torque and if you over do it they will strip out in normal circumstances . I think 9nm to lock up . Put some hylomar blue on the gasket as well as you refit it. Also keep it all clean, or bits might get in to the oil