03-07-2019, 03:07 PM
Yes counter clockwise to loosen. However I will add this caveat - if you have never taken the side water branch off, then you could be opening a can of worms if you do - they are best left well alone. Stripped or sheared studs are very likely and corrosion may have seen off the bit that is threaded. If in doubt about the water circulation properties of the head/block then take the radiator off and flush the block/head through with a hose pipe.