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The Terminator
Engine/Tuning
Timing chain tensioner help
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<blockquote data-quote="Quick Strike" data-source="post: 13094886" data-attributes="member: 11920"><p>The tensioners are tightened by oil pressure when the car is running. They will be loose when the engine is not running and only have springs to keep a little tension on them. It is normal for the chains to cycle between loose and tight when the engine is not running as you turn it by hand. The valve train is pulling the chain forward or trying to move it backwards depending on what valves are opening or closing at the time. </p><p></p><p>You can replace the tensioners without disturbing the timing. Just use a loose point in the cycle and make sure not to move anything until the tensioner is in place and released. </p><p></p><p>You may want to consider using the earlier tensioners that are metal while you have it apart. I wish I had now that I did not. I have not have any problems, but like replacing parts that can fail with those that don't.</p></blockquote><p></p>
[QUOTE="Quick Strike, post: 13094886, member: 11920"] The tensioners are tightened by oil pressure when the car is running. They will be loose when the engine is not running and only have springs to keep a little tension on them. It is normal for the chains to cycle between loose and tight when the engine is not running as you turn it by hand. The valve train is pulling the chain forward or trying to move it backwards depending on what valves are opening or closing at the time. You can replace the tensioners without disturbing the timing. Just use a loose point in the cycle and make sure not to move anything until the tensioner is in place and released. You may want to consider using the earlier tensioners that are metal while you have it apart. I wish I had now that I did not. I have not have any problems, but like replacing parts that can fail with those that don't. [/QUOTE]
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Timing chain tensioner help
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