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Thom's Cam Chain Saga, Part II

drneo66

Active member
Well, I finally decided to get after fixing my cam chain. I put together a big summary about the F-Twins Cam Chain here (which I plan to update with more info after I successfully change mine). I have some recorded video of the change in noise that I experience when the bike is fully warm vs. when the bike has just been turned on (but after the cam chain tensioner kicks in). I'll post that soon.



I measured approximately 3.8mm of slack at the chains loosest point. However, I could also stick my ~8mm finger in between the chain and the top guide at that point.
IMG-2364.jpg


Both of my timing marks line up just about perfectly, so I'm not sure if you can adequately use those to double check your chain slack.
IMG-2363.jpg


Curiously, when I flipped over my valve cover, I noticed that I had two marks where the cam chain has started to rub. They are not that deep, but caught me by surprise.
IMG-2358.jpg
 
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