Cam chain tensioners

zoran zv30 at
Sun May 17 17:10:28 PDT 2009

bs. chain goes tight/lose/tight/lose depending where cam lobes are.


Zoran Vujasinovic
Twin Works Factory

----- Original Message ----- 
From: "Ernest Montague" <afm199 at>
To: "Suzuki SV650 Mailing List" <sv650 at>
Sent: Sunday, May 17, 2009 4:44 PM
Subject: Re: Cam chain tensioners

> not really making a defense here, just used them both.  The OEM keeps 
> the chain really really taut, the manual does not.  And if the entire 
> length of the cam chain follower is bathed in oil it's not going to 
> really get much hotter at all.  However I know from experience that a 
> too tight rear chain will make it harder to turn the rear wheel than a 
> loose one.
> On May 17, 2009, at 3:49 PM, Beth wrote:
>> On Sun, May 17, 2009 at 3:33 PM, Ernest Montague 
>> <afm199 at> wrote:
>>> Not when the heat is carried off in steel and oil and dissipated by 
>>> the
>>> radiator
>> It's a given that there is friction generated by the cam chain rubbing
>> against the teeth of the cam chain sprockets and guides. The question
>> is how much and is there a significant difference between the tension
>> the OEM automatic cam chain tensioner puts on the chain versus a
>> properly configured manual cam chain tensioner. We're not talking
>> about a complicated part of the engine.
>> It's an interesting thought experiment, barring credible empirical
>> evidence. And, yes, I question the evidence seeing that the person who
>> is trying to sell you the part is making the HP claims w/o conclusive
>> proof. No offense intended toward all parties involved. I'm interested
>> in what's the truth, not what other people say.
>> -Beth

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