August 11, 2022
Written by
Kate Rochat

Q: Factory positions look off by one tooth when replacing my timing chain, should I change to 'dead on' when installing the new chain?

Answer: If your timing chain seems to be off a tooth even after you have replaced it with a new timing chain, this means that the old chain likely stretched when you were running your car with the old chain. Timing chain stretch is an elongation of the timing chain itself, which can lead the chain to skip a gear and potentially cause an engine misfire. Because you have already replaced the timing chain, what you should do is set each cam and crank individually with each slight adjustment and then install the new chain and tensioner according to the marks. Lastly, turn the engine over by hand to ensure that there is proper alignment with the new timing chain to the marks. Examine this fully and thoroughly before running your engine normally.