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Discussion Starter #1
I found this pic on jr_allas' website. Finally a picture showing something I've wondered about for a while. What is that thing sticking out of each cyclinder? My crude attempt at drawing an arrow points toward the one shown in this pic. Thanks,

jeff

04_No_carbs.jpg
 

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and the Adventure Cycle
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That is the ACCT (automatic cam chain tensioner).
And for a crude attempt, it's good enough !
 

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Yup, well done! And I have such fond memories of installing those new springs... Wish the engine on Orleans looked that clean!
 

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Benjammin'
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Acct

As long as we are on the subject of Automatic Cam Chain Adjusters, or ACCT as they are affectinately referred to. (By the way, it took me a long time to figure out what the heck everyone was talking about.) But anyway, what is the typical mileage when folks have had to service these things? I believe first attempt to service is the "gambo trick" before spring replacement??? Or, is service on these more age than mileage?

I really appreciate all you folks' willingness to share your knowledge.
 

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As long as we are on the subject of Automatic Cam Chain Adjusters, or ACCT as they are affectinately referred to. (By the way, it took me a long time to figure out what the heck everyone was talking about.) But anyway, what is the typical mileage when folks have had to service these things? I believe first attempt to service is the "gambo trick" before spring replacement??? Or, is service on these more age than mileage?

I really appreciate all you folks' willingness to share your knowledge.
Orleans has about 25K miles on her, and she was making quite a racket (and putting off potential buyers). When I broke down the ACCT, the springs were thoroughly shot. My rideable bike has about 11K miles, and is just starting to make "that sound" in the rear cylinder, but I don't know how normal that is in terms of mileage.

On a positive note, the TOC springs are only 20-odd dollars (plus a little shipping), and replacement is really pretty straightforward.
 

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and the Adventure Cycle
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I replaced the springs on mine around 30k mi.
I did the Grambo trick first. That lasted a few months until I heard 'that sound' again (which many compare to the mixing balls in a can of spray paint)

At first, the way the springs work can be a little confusing. But once ya disassemble them you understand it better.
They don't work by the springs pushing action as one would expect, but by the twisting action of them.
 

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i am going to be changing mine out to the TOC springs here shortly....hopefully they will help...
 

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Mine didn't start making noise until almost 40k miles. I took the ACCTs apart and retensioned the springs. That lasted a few months and then I had to do the Grambo trick. Looked like only the rear one was sticking. Might have someting to do with the angle. Putting the TOC springs in when I do the ear shave this spring.
 

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Discussion Starter #10
That is the ACCT (automatic cam chain tensioner).
And for a crude attempt, it's good enough !

Thanks. Like others, I appreciate the shared knowledge here.
jeff
 
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