What are these 'holes' for?
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#1
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#2cam breather needs pipe and small filter if not the origonal air filter other wise oil comes out
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#3Oil breather...eithr plumb a oil catch tank to it, or a pipe with a filter on the end. Alternativley plumb it into your air intake on your airbox etc but this will lower the octane of the fuel in the combustion chamber
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#4The one in the head looks like a core plug....a sort of weak point so if the water in the head freezes and expands in cold weather,it pushes out the core plug instead of cracking the head.
Al -
#5Thanks guys, much appreciated.
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#6Sorry mate,just re read my reply and core plugs are in the block not the head!!....hope the other replies were more helpful(must lay off the beer)!!

Al -
#7thanks, so the one in the block should just be plugged? anyone got citroen or peugeot part numbers for the parts I need?
thanks again. -
#8just leave the one in the head alone - get an oil breather pipe on the cam cover hole - sorted.
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#9Cheers, just read up a bit more and will probably end up with a catch tank once the engine is rebuilt.
Thanks alot.