ok i brought this car wit 87 thou on it... runs smooth like a champ. shifts and everything smooth... need secondary timing chains... i replace them with new ones... i had to remove the sprocket cuz it wasnt enough room... oh both sides... i didnt have the lockin tool but i marked them. lining everything back up... now i have a engine rattle... and it struggles to stay idle then shuts off... is this 1 or 2 problems? and i wont lie i half cleaned all the COP tips n wells... and changed the gaskets... figured it wasnt the problem since it came after i changed the tensioners... will i need the tool to set the timing???