Check your cams... Flaking cams are back - MVAgusta.net
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post #1 of 65 (permalink) Old 02-20-2016, 11:05 PM Thread Starter
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Check your cams... Flaking cams are back

Check your cams before the warranty is up..!

I heard MV triples were having an issue with the finish on the cams flaking off, a similar issue to the early F4's (ask me how I know), so I checked the cams on my Rivale a week before the warranty was up and sure enough the intake cam had the issue.

The exhaust cam had minor flaws, but I'm not going to worry about it.

The bike only has 3500 miles on it.

I've been using full synthetic Castrol RS 5W-40 motorcycle oil since new. First change was at 400 miles and it's been changed twice since, so a total of 3 oil/filter changes.

It's something else to check before your warranty is up. At $1000 per cam, it's not a cheap fix if you have to open your wallet..! And who knows if the next cam will be good!
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post #2 of 65 (permalink) Old 02-21-2016, 01:20 AM
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How are the followers? My 2013 F4RR had flaking on two of the inlet followers and the cam lobes were beginning to mark. Nothing to worry about they said, check it at the next scheduled valve clearance check.

The bike had already been in the shop for almost 3 months for a warranty job for engine noise which culminated in replacement of the cam chain, tensioner, chain guides, idler gear and shaft (which was badly worn at 8,000km).

Next morning I went back to the workshop and took photos of the cam and followers. I scarcely had time to get back to my office when I had a call to say that the had decided to order inlet cams and followers for replacement under warranty. Funny that! But only the inlet cam!

I'll take it back in a month or so to fit the inlet cam (they want me to pay for fitting!), it will have done another 6,000 km by then. And we will have a very hard look at the exhaust cam.


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post #3 of 65 (permalink) Old 02-21-2016, 06:39 PM
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All my cams have this, on the F4 1000R, it's never become worse or damaged the followers either.

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post #4 of 65 (permalink) Old 02-22-2016, 06:13 AM
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I seem to recall this subject some years ago, and MV saying not to worry? There must be prior posts to substantiate this........

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post #5 of 65 (permalink) Old 02-22-2016, 06:48 AM
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Quote:
Originally Posted by Tony F View Post
How are the followers? My 2013 F4RR had flaking on two of the inlet followers and the cam lobes were beginning to mark. Nothing to worry about they said, check it at the next scheduled valve clearance check.

The bike had already been in the shop for almost 3 months for a warranty job for engine noise which culminated in replacement of the cam chain, tensioner, chain guides, idler gear and shaft (which was badly worn at 8,000km).

Next morning I went back to the workshop and took photos of the cam and followers. I scarcely had time to get back to my office when I had a call to say that the had decided to order inlet cams and followers for replacement under warranty. Funny that! But only the inlet cam!

I'll take it back in a month or so to fit the inlet cam (they want me to pay for fitting!), it will have done another 6,000 km by then. And we will have a very hard look at the exhaust cam.


Tony
Why do they want you to pay for fitting when it's a warranty job? Sounds a bit rich to me!
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post #6 of 65 (permalink) Old 02-22-2016, 02:57 PM
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Apart from how they look are there any symptoms - noise, adjustment issues etc.
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post #7 of 65 (permalink) Old 02-22-2016, 07:01 PM
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New here, but registered because I just ordered a 800RR dragster.

Whan kind of springs are in there ?

I've had cams go this on Subaru race engines. Upgraded springs would cause wear on the cams. ( But allow for higher revs. )

Can the valve covers be taken off in place ?
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post #8 of 65 (permalink) Old 02-22-2016, 09:03 PM Thread Starter
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Originally Posted by Donsy View Post
All my cams have this, on the F4 1000R, it's never become worse or damaged the followers either.
That's strange. I wonder why MV is warrantying the cams then...?
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post #9 of 65 (permalink) Old 02-22-2016, 09:06 PM Thread Starter
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Apart from how they look are there any symptoms - noise, adjustment issues etc.
Nope. Bike still ran perfect.

The flaking lobes felt rough, I could easily catch my finger nail on the edge where they started flaking.

I'm sure I caught it early enough to where it wasn't affecting the running.
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post #10 of 65 (permalink) Old 02-22-2016, 10:55 PM
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Originally Posted by Resom View Post
That's strange. I wonder why MV is warrantying the cams then...?
Must be worse on the new bikes mate, or maybe they care more these days

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