Cam chain tensioner - MVAgusta.net
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post #1 of 152 (permalink) Old 03-16-2016, 12:57 PM Thread Starter
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Cam chain tensioner

I know it's been on here a million times but I went at it from a different angle. The spring in this pic had nothing stopping it from popping straight out of that opening. In fact when I removed the Cam chain tensioner the spring was almost popped out. If it comes out and there is no more tension on the ratchet, it's easy to predict what will happen...kaboom. So I took it apart and drilled a recess into that part so the spring is captured and has nowhere to go. $20 says that spring coming out is responsible for all the engine failures. Hopefully I just saved myself $450. We shall see.

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post #2 of 152 (permalink) Old 03-16-2016, 06:05 PM Thread Starter
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Don't know if you guys knew this but the Cam chain tensioner on the first gen F4 1000 is IDENTICAL to the one used on the Kawasaki KX250F Dirtbike, the RMZ250F Dirt bike. They cost $77 USD. Your welcome. BTW there is lots of aftermarket tensioners available for those machines and they cost about $100. Check out Tokyo mods. They have a beautiful manual adjuster that will never ever break.

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Last edited by swissinn; 03-16-2016 at 06:09 PM.
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post #3 of 152 (permalink) Old 03-16-2016, 06:09 PM
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Is the original also not around 100?

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post #4 of 152 (permalink) Old 03-16-2016, 06:34 PM Thread Starter
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$298.00...

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post #5 of 152 (permalink) Old 03-16-2016, 07:15 PM
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Dave;
the usual failure is the casting cracks through the pivot point killing tension on the

ratchet.......

thanks for the alternate sources


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post #6 of 152 (permalink) Old 03-16-2016, 07:39 PM Thread Starter
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For $100 this will certainly outperform the $298.00 upgraded MV version.


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post #7 of 152 (permalink) Old 03-16-2016, 07:44 PM
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Even if the spring fails ,the shoe can not retract .But swiss good idea.

cheers eddy
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post #8 of 152 (permalink) Old 03-16-2016, 08:11 PM Thread Starter
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Quote:
Originally Posted by swissinn View Post
For $100 this will certainly outperform the $298.00 upgraded MV version.

I just ordered this tensioner so I'll let you know how it works out. Cost $150CAD shipped. MV wants $450CAD plus Tax...eesh.

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post #9 of 152 (permalink) Old 03-16-2016, 08:22 PM
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Good info, thanks for that mate.

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post #10 of 152 (permalink) Old 03-16-2016, 09:23 PM
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Once it has been verified this needs to go into the sticky section. Last time I checked the std tensioner was priced at A$495 in Australia.

Can't say I agree with the post above. If the spring pops out the only thing holding the ratchet in place is tension, which will be changing as you throttle off.
This whole subject does my head in. Other brands have issues too. Wish there was some way to have gear driven cams, like the older MV and the Honda VTR SP's.
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