Valve cover tork optra 2004 - Optra Chevrolet Cars & Trucks

The 2004 Chevrolet Optra features an attractive 2.0L Dtech 16-valve engine. In an intervention engine, valves and pistons share the same space in the combustion chamber, and if the timing belt (or timing chain) breaks or slips, valves and pistons are at risk of blowing, which can severe engine damage so it is important to adhere to the recommended timing belt replacement intervals to prevent such issues.

There is no torque its an adjustment a lock nut.You need to look up valve adjustment this will explain how to adjust valve clearance issues with rocker arms

google firing order diagram for 2004 chevy optra

on the flywheel ,a rectangular hole the mark appears in this as the flywheel is turned

Hard to find because of the way door sits to the body.
You may not find any are made.

i want to buy a new engine for my car 2004 chevrolet optra LT can you hepl me

FIRST CHECK TRANSMISSION FLUID LEVEL MAKE SURE ITS CORRECT.IF FLUID LEVEL OKAY SOUND LIKE STICKING SHIFT VALVES.CHANGE TRANSMISSION FLUID + FILTER.GET SOME TRANSMEDIC ADD 1/2 TO NEW TRANSMISSION FLUID THIS HELP FREE STUCK SHIFT VALVES IN VALVE BODY DONT OVER FILL ADD IT IN.BUT DONT OVER FILL TRANSMISSION.IF THIS DONT HELP.YOU COULD HAVE VALVE BODY PROBLEM.

Optra 5 2004 ls code 3241 worked for me . thankyou verymuch u guys saved me my time and money

valve cover gaskets are in expensive, like 20 bucks, a books that can tell you how to do it would be 25-50 and you will be able to use the book for other things.. there are usually a few long bolts going straight through your valve cover, jus take them off remove the old gasket and put new one in put them back in.. however tightening the valve cover bolts will be the only tricky part.. you may need a torque wrench and have to refer to the book to know exatly how tight they should be.. but as a rule of thumb 80-90 ft-lb of tork is usually used.. be careful when doing this cuz if you put the wrong torque on it will bend your valve covers or posibbly not seal correctly