Cam chain tensioner very bad - MVAgusta.net
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post #1 of 11 (permalink) Old 02-25-2018, 07:21 PM Thread Starter
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Well I had the dreaded cam chain rattle. So I embarked on changing it because it had the original in there. Here's a couple pictures of what I found when I pulled the old one out
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post #2 of 11 (permalink) Old 02-26-2018, 04:06 AM
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Oh dear. Hope you found the other pieces in the sump.
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post #3 of 11 (permalink) Old 02-26-2018, 04:56 AM
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Lucky you got to it before something major happened. I'm assuming you've researched this website and read the outcomes of this design fault and the things you can do to stop it from happening again. If not, there's a shipload available.


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post #4 of 11 (permalink) Old 02-26-2018, 05:43 AM
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Yep...that's how they break. Hence the recall years ago and improved part. Good news is the missing bit of aluminum has a straight drop to the bottom of the sump.

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post #5 of 11 (permalink) Old 02-26-2018, 08:48 AM Thread Starter
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Well I haven't changed the oil yet, so I kind of hope to find the pieces then then.
Doing the research on the tensioner on this web site, the difference between manual and the automatic besides the obvious, price is big thing. I just wanted to pass a long that I found the auto tensioner at Motosport.com 180.00. It's a Husqvarna part. PT# 8000A5199.

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post #6 of 11 (permalink) Old 02-26-2018, 11:43 AM
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Quote:
Originally Posted by MyzTied View Post
I just wanted to pass a long that I found the auto tensioner at Motosport.com 180.00. It's a Husqvarna part. PT# 8000A5199.

IF its not in the interchangeable parts list this should be added to it.
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post #7 of 11 (permalink) Old 02-26-2018, 12:31 PM
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Oh. I have a F4 1000R, but no noises. I gather this is a 'regular' problem. I'd best check around for what to be aware of. Anyone offer a clue as to usual mileage to expect this? Thanks.

Edited to say: I have scanned through technical issues (F4) and 'Hand on' threads, but can't immediately locate substance that might assist me be prepared for chain problem. I may well be over-cautious, but might a 'mod' have a link at hand they could share?

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post #8 of 11 (permalink) Old 02-26-2018, 01:37 PM
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There are lots of threads about this subject. Unfortunately most of the pictures have gone since photo bucket is no longer free to use.
Several vital points:
The updated tensioner is black on the outside part that sticks out the front of the motor.. If you have a silver one it is the older version that is prone to failure.
Do the change as per the workshop manual. There is no shortcut. If you do take a shortcut, it is probable that you will upset the valve timing.
The new tensioner when fitted into older motors requires grinding a slight vertical chamfer on the inside edges to allow it to fully seat in. Easily seen when you put the new and the old tensioner side by side.
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post #9 of 11 (permalink) Old 02-26-2018, 02:27 PM
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@nielrb:

http://www.mvagusta.net/forum/20-mai...-question.html

http://www.mvagusta.net/forum/20-mai...tensioner.html

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post #10 of 11 (permalink) Old 02-27-2018, 06:12 PM
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Changing CCT....

Remove the valve cover
Put the motor on TDC with the phonic wheel
Loosen the end cam bearing block bolts enough to insert some strips of paper, retighten the bolts
Safety wire the cam chain to both sprockets
That way it can't jump time
Now change the CCT......don't forget the paper

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