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원문 게시자: L Pfaff ,

본문:

@weelee ,  Lee, sounds like you have an issue, could be stretched chain, worn/broken guides, worn timing gears but the biggest issue here is probably a faulty timing chain tensioner, could be a combination of wear on all timing chain components.

Since this is what is known as a interference fit engine, it is best to change all the components and the timing chain and be sure to use the Ford recommended oil in your 5.4L. Check the attached video links, showing  tear down, timing component wear and failure. Good luck.

I hope this helped you out, if so let me know by pressing the helpful button.

https://www.youtube.com/watch?v=zkzsnie4hdg

https://www.youtube.com/watch?v=aUBx0RXjvW8

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