Is the Ford 4.6 v8 an interference engine?
Is the Ford 4.6 v8 an interference engine? Per the OEM Manuals, the 4.6L is an interference engine. Remember that the timing chains have self-adjusting hydraulic tensioners, so there isn't a lot of slack when the get worn. Is the 4.0L SOHC engine an interference engine? Fortunately, the 4.0L SOHC is not an interference engine so a timing chain failure won’t bend the valves. But it does create an expensive repair for the vehicle owner. Ford issued a TSB for the timing rattle problem and released a redesigned “‘cassette”‘ (the timing chain, gears, guide and tensioner assembly) for the left...