For those of you that recall I did a timing job to my 5.4 almost 2 years ago. I just wanted to let you all know the factory tensioners have failed again as of about 1.5 years of service and the chain slaps around very badly on startup. the truck going to the boneyard anyway because the transmission issues. The tensioners were Ford OEM and torqued to spec with a torque wrench. For any of you doing that job in the future I’d highly recommend skipping the factory style o-ring ones. I questioned this many times—how can the O-ring handle a new strong oil pump feeding it? Well the answer is it can’t. It will happen all over again. That’s why I was flat out against the Melling pump. Anyway, I’m done with the 3rd gens and the rusty rockers, the engine problems. Shopping for a new vehicle and never looking back. Just thought I’d share with any of you doing that horrendous job—get ratcheting tensioners.
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