my m42 seems to have a timing chain problem,
i recently replaced the tensioner hoping to solve the problem but i wasn't so lucky
what parts would i need to replace while the cover is off besides the chain, and guardrails

?
ohh, and 6 months ago i smashed up my sump can continued to drive for a few minutes.
could the noise between 2500-3000 be related to this ??
thanks