1.4L
the FSM covers this,
on most cars,
remove screws holding it down
remove old gasket, clean surfaces, with plastic scraper
put on new gasket, with sealant if , stated in FSM.
set the screws to proper torque, most have 6mm screws.
are most not be set more than 89 INCH /POUNDS> thats INCH not FOOT.
but the correct torque is only found in the FSM.
the factory service manual for the 1.4
MY GUESS IS THE 1.4 X14XE ENGINE.
E-TEC II OR CHEVY L95 ENGINE.
http://en.wikipedia.org/wiki/GM_Family_I_engine
Used in the AVEO here and pontiac wave. but no 1.4here (USA)
the 1.6 says, i step 2
Apply a small amount of gasket sealant to the corners of the front camshaft caps and the top of the rear valve cover to cylinder head seal.
and my guess for screws torque was spot on for the 1.6.
i post this to show you to read the FSM ad read the special instuctions. for engine assembly.