[MDairheads] Exhaust Port Thread Question

[Craig Barnhart]

 Kevin,
I know that Boxer2Valve sells them.
http://www.boxer2valve.com/motorcycle/8818270.html
I didn't see you mention your model. This one is Size= M52 x 2. Suitable
for all R2V models from /5 to R100, NOT the R45 and R65. Check the
applications tab.
I haven't checked anywhere else so I don't know if $180 is a good price for
the quality of this one.

Boxer2Valve also sells a metric thread file.
http://www.boxer2valve.com/Merchant5/merchant.mvc?Store_Code=bmw2valve&Screen=PROD&Product_Code=6440226
Given the price of $43, I would personally try it first if the threads
aren't too bad:
I have not tried this tool but I watched the video of William using it, and
it seemed pretty easy. Others may have different opinions.

Craig

On Sun, Aug 19, 2018 at 7:02 PM <mdairheads-request at casano.com> wrote:

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>    1. Exhaust Port Thread Question (Kevin Fahey)
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> Message: 1
> Date: Sun, 19 Aug 2018 22:59:33 +0000
> From: Kevin Fahey <faheykm at hotmail.com>
> To: Maryland Airheads <mdairheads at mail.casano.com>
> Subject: [MDairheads] Exhaust Port Thread Question
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>
> Evening All,
>
>
> When attempting to remove the exhaust crossover pipe to clean trust from
> it and the exhaust pipes, I found it was rusted solid to both exhaust pipes.
>
>
> So I decided to go ahead and remove both exhaust pipes.  They're pretty
> rusty.  I also wanted to make sure they hadn't rusted into the exhaust
> ports.
>
>
> The left side exhaust nut came off smooth as butter.  Right side loosened
> a couple turns and then would not budge.  Having paid attention to advice
> passed along in the prior tech sessions I've attended, I went ahead and cut
> the exhaust nut off rather than force it off.
>
>
> Found the reason it hung up was some slight damage to a thread as you can
> see in the attached photo.  I'm guessing it happened during a removal by a
> previous owner.
>
>
> Looks to me like I should be able to clean it up with a die since the
> damage isn't too severe or too extensive.  Is this the recommended course
> of action?  If so, anybody know what size die to use and possibly a source
> that sells them?
>
>
> Kevin
>
>
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