Hello everyone. Ive got a problem. 5 months ago i had changed head gasket, due to air in cooling system. But after that cant find proper position for timing chain. Or better to say not for the chain but for the head sprocket. I have aligned chain with head sprocket, and crankshaft sproket and 1 cyl. But on the camshaft there are 3 cuts for bolts... and after loosing bolts a bit you can change time of injection and valve opening. So what is the proper adjustment? if i set injection time earlier engine became noisy especially on low revs... but pulls nice. If i set it little bit later, it became quite... but pulls less fast... what is a proper set? Injectors are set correctly.