2012 F4r exhaust headers melting the right side belly pan.... - MVAgusta.net
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post #1 of 16 (permalink) Old 07-04-2014, 09:38 PM Thread Starter
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2012 F4r exhaust headers melting the right side belly pan....

So everyone I have this cumbersome problem,

I installed some MV Corse SS headers about 1 year ago and late last year a Bodis Ti Slip on (new model). I hadn't had any trouble when I original brought the 2012 2 years ago, last year when I installed the SS headers or even late last year when I installed the Bodis Slip on. However, over the past 2 months I notice the right side of my lower belly pan burns a little hole from the exhaust headers touching that side. My first thoughts was the exhaust hanger spring covering had burned off so maybe the metal to the heat shield was causing this issue. I quickly replaced the hanger spring (grey bungy) and thought all was good but nope it started burning through again. I have the original factory heat shield still on the belly pan and I also put some silver exhaust heat tape/strips on the area that was being affected. Well went out for another ride and damnt it started burning through the tape and the heat shield liner again. What I am baffled on is the exhaust didn't display this over the past 2 years and I have a hard time believing that the heat displacement would all of sudden expand the headers to cause them to move/heat up in a way that it would burn thru the heat shield liner and tape. My other thought was maybe because the exhaust was touching/sitting on the right lower belly pan was the problem however its always been that way... And I tripled check the placement of the headers, and ti slip-on and all line up correctly. So my question out to the wise and faithful MV community is if I wrap the headers with the hi temp exhaust wrap would this solve my problem? or am I looking in the wrong place and there is something else going on causing this problem to crepe up now?

Thanks everyone in Advance,

Dre

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post #2 of 16 (permalink) Old 07-04-2014, 11:32 PM
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Can you post a photo? -Davis
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post #3 of 16 (permalink) Old 07-05-2014, 06:54 AM
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Dag, since you had some run time with no issues, it makes me wonder if you have changed anything else lately. Fuel supply, tuning, air filter...anything that would make the bike run leaner and hotter....

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post #4 of 16 (permalink) Old 07-05-2014, 10:55 AM Thread Starter
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No changes this year accept cosmetic like new rear sets, bar ends etc. when I put the Bodis slipon on I had a custom map built of course but again it's been running that map since that point. It's only burning at the place where the pipe is touching the fairing. Mine has always touched the heat shield in the side even with the stock mv headers. Is that normal?


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post #5 of 16 (permalink) Old 07-05-2014, 10:55 AM Thread Starter
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I'll post a photo when I get home today. Thanks guys.


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post #6 of 16 (permalink) Old 07-05-2014, 01:40 PM
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I would double or triple the heat shield and call it a day.

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post #7 of 16 (permalink) Old 07-05-2014, 05:06 PM Thread Starter
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Pics of where it burned through and the pipe




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post #8 of 16 (permalink) Old 07-05-2014, 08:21 PM
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I think the headers bracket is wrongly installed. Find somebody with the same model bike, and compare it. I'm pretty sure you will find something wrongly installed, even if it doesn't seem like.
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post #9 of 16 (permalink) Old 07-05-2014, 11:32 PM Thread Starter
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Nah that's not it went to mc dealer today and they all match up


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post #10 of 16 (permalink) Old 07-06-2014, 02:09 AM
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Originally Posted by dagmvagusta View Post
Nah that's not it went to mc dealer today and they all match up


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Is there a spot where the header is contacting the body pan? I looked at my Bodis today and there is major (salute here) clearance between the whole exhaust and the body parts; no where is the header / up-pipe getting anywhere near to the plastics. ?!? -Davis
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