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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: 1042753" data-attributes="member: 74754"><p>It's coming from the passenger-side chain, which looked fine when I changed the valve covers not too long ago. It was still intact, with no wobble. I've ordered some new chain tensioners to see if that corrects the problem; I'll switch them out this weekend. Hopefully, that corrects the problem. </p><p></p><p>If it doesn't, I'll run a dry compression test; if that test is good, I'll pull the engine, replace the timing cassettes, and do a reseal. My rear main seal is weeping anyway. If the dry compression test isn't good (doubtful), I'll run a wet test and draw up a battle plan from there. Which means I'm headed for an overhaul. </p><p></p><p>Either way, the engine has to come out if the new tensioners don't fix the start-up rattle. </p><p></p><p>I can't complain; it's given me 57k miles more than its typical service life.</p></blockquote><p></p>
[QUOTE="Evox, post: 1042753, member: 74754"] It's coming from the passenger-side chain, which looked fine when I changed the valve covers not too long ago. It was still intact, with no wobble. I've ordered some new chain tensioners to see if that corrects the problem; I'll switch them out this weekend. Hopefully, that corrects the problem. If it doesn't, I'll run a dry compression test; if that test is good, I'll pull the engine, replace the timing cassettes, and do a reseal. My rear main seal is weeping anyway. If the dry compression test isn't good (doubtful), I'll run a wet test and draw up a battle plan from there. Which means I'm headed for an overhaul. Either way, the engine has to come out if the new tensioners don't fix the start-up rattle. I can't complain; it's given me 57k miles more than its typical service life. [/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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