Has anyone had blistering paint on the motor (pics inside) - MVAgusta.net
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post #1 of 12 (permalink) Old 06-26-2011, 08:20 PM Thread Starter
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Has anyone had blistering paint on the motor (pics inside)

It seemed to have started a few months back and degraded over the past couple of weeks. If you've sen this before, is this excessive heat? or corrosion of some sort?





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post #2 of 12 (permalink) Old 06-26-2011, 08:57 PM
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blisters

is that the paint? or the metal? i hope for you not is not the metal. how old is the bike? did you buy it new?
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post #3 of 12 (permalink) Old 06-26-2011, 11:17 PM Thread Starter
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Well, I don't really know what' going on there, it seems like the paint, but time will tell. Bike is 2005.

To be honest, I would be cool if I had to replace that part. It's just doing the work that I don't look fwd to.
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post #4 of 12 (permalink) Old 06-27-2011, 01:28 AM
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I was going to ask if you were in a salt air climate, but you are in Westlake CA so it is somewhat dry there. If you are cruising PCH all of the time, you could have developed corrosion under the paint. If you do not know the history of the 2005 bike, it may be that the previous owner did some paint touch up on the heads, and the paint he used was not heat resistant. I am in Camarillo, and ride PCH every day, and none of my MVs have that issue.
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post #5 of 12 (permalink) Old 06-27-2011, 02:05 AM Thread Starter
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Yeah, I can't imagine it's something like that either. It seems to me that it's some sort of electrical corrosion or somehow that cylinder is heating up more than normal through convection or something. That being said, I never expected the paint to blister like that if that's the issue.

It might be time to get a used 910r engine and do a heart transplant. ;-)
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post #6 of 12 (permalink) Old 07-26-2011, 05:07 AM
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I have a 2005 Brutale S that I bought second hand a few months ago and its got quite a alot a places on the engine where the paint has peeled or flaked off . Just litte bits where the paint has blistered and come off. I didn't notice it until I detailed it , and now I see it all the time . Engine has no rust , it looks like its aluminium . I live in Sydney Oz but the bike came from Ireland in 2009 , I was thinking that maybe because it gets cold there it was a hot/cold issue . The bike had only done 9500 km but lots of that could have been track days , who knows . It doesn't look the best and it's got me thinking about pulling the engine out and painting when I have the money or the know how . In all other respects the bikes great , 113 rwhp with Arrow full 4 to 1 and PCIII .
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post #7 of 12 (permalink) Old 07-26-2011, 04:22 PM
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I call it patina...a badge of honor....

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post #8 of 12 (permalink) Old 07-26-2011, 04:34 PM
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Looks like some caustic cleaner was used, all the blistering is on the downhill sides of surfaces.
Either that or the metal wasn't cleaned well before painting....do the blisters pop and flake off? or are they hard, in which case it may just be a rough casting.

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post #9 of 12 (permalink) Old 07-27-2011, 05:17 PM
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That's a couple of good points Eddy !

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post #10 of 12 (permalink) Old 07-27-2011, 05:38 PM
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The head & cases look fine so this would suggest faulty paint on the barrels.
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