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SportTrac Discussion
General Sport Trac Discussion
Well ...a little over 307,000 miles on my 4.0L SOHC and I've gotten the infamous start-up chain rattle.
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<blockquote data-quote="Evox" data-source="post: 1042838" data-attributes="member: 74754"><p>It's most certainly an interference engine. If the chain skips time or breaks, you will be rebuilding or replacing it. Many folks make the mistake because, usually, broken chain guides don't result in a catastrophic engine failure. </p><p></p><p>As posted earlier, these engines can and sometimes do go a long time with bad guides. Of course, it's a gamble. As long as none of the plastic bits block off oil or the chain doesn't jump timing, it'll just rattle and run. I think that's why a lot of people think they're non-interference engines. </p><p></p><p>I think mine is the tensioner, but while trying to torque down my new tensioner, my hand slipped, and I sliced my left hand open on the brake dust cover. ...stupid mistake, I wasn't wearing gloves, and I didn't turn the wheel right before I got it on the lift. Like an idiot, I thought I'd get er done real fast. After washing it out, I used some permabond to seal the wound, but I probably could have used a few stitches. I'm kind of amazed at how deep it cut. I've banged up my hands working on cars over the years, but this one made a clean slice right through the dermis. ....wear your gloves, kids. </p><p></p><p>Before my screw up I did notice a lot of play in the old tensioner. I'm pretty sure the internal seal is toast, so I'm hoping the new one solves my problem.</p></blockquote><p></p>
[QUOTE="Evox, post: 1042838, member: 74754"] It's most certainly an interference engine. If the chain skips time or breaks, you will be rebuilding or replacing it. Many folks make the mistake because, usually, broken chain guides don't result in a catastrophic engine failure. As posted earlier, these engines can and sometimes do go a long time with bad guides. Of course, it's a gamble. As long as none of the plastic bits block off oil or the chain doesn't jump timing, it'll just rattle and run. I think that's why a lot of people think they're non-interference engines. I think mine is the tensioner, but while trying to torque down my new tensioner, my hand slipped, and I sliced my left hand open on the brake dust cover. ...stupid mistake, I wasn't wearing gloves, and I didn't turn the wheel right before I got it on the lift. Like an idiot, I thought I'd get er done real fast. After washing it out, I used some permabond to seal the wound, but I probably could have used a few stitches. I'm kind of amazed at how deep it cut. I've banged up my hands working on cars over the years, but this one made a clean slice right through the dermis. ....wear your gloves, kids. Before my screw up I did notice a lot of play in the old tensioner. I'm pretty sure the internal seal is toast, so I'm hoping the new one solves my problem. [/QUOTE]
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SportTrac Discussion
General Sport Trac Discussion
Well ...a little over 307,000 miles on my 4.0L SOHC and I've gotten the infamous start-up chain rattle.
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