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FJR Motorcycle Forums
Technical & Mechanical Problems
CCT Operation
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<blockquote data-quote="Fred W" data-source="post: 1351446" data-attributes="member: 3828"><p>Actually at #1 TDC, if you do slacken the chain the cams will be levered into rotating by the force of some of the valve springs (I forget which ones exactly), so you are right; if you can avoid slackening the chain, jamming something in behind the rear chain guide will prevent a lot of headaches when removing and replacing the CCT.</p><p></p><p>The more difficult situation is when you must slacken the chain to pull a cam out and change shims. You can tywrap the chain to the two cams, but securing the chain to the lower crank sprocket is more of a challenge. Still, if you have the other two secured in time, having only one sprocket to realign is a lot more manegable than all 3.</p></blockquote><p></p>
[QUOTE="Fred W, post: 1351446, member: 3828"] Actually at #1 TDC, if you do slacken the chain the cams will be levered into rotating by the force of some of the valve springs (I forget which ones exactly), so you are right; if you can avoid slackening the chain, jamming something in behind the rear chain guide will prevent a lot of headaches when removing and replacing the CCT. The more difficult situation is when you must slacken the chain to pull a cam out and change shims. You can tywrap the chain to the two cams, but securing the chain to the lower crank sprocket is more of a challenge. Still, if you have the other two secured in time, having only one sprocket to realign is a lot more manegable than all 3. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
CCT Operation
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