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Better still get some of these:
https://mossmotors.com/bracket-rear-air-cleaner?assoc=3D19384
On Thu, Nov 22, 2018, 12:48 PM Bob Spidell <bspidell@comcast.net wrote:
> I've not tried this, but my first thought is that the aluminium bodies of
> the SUs would be too soft; eventually, you might strip the threads (esp. =
if
> trying to get a good seal with the filter). Why not do what you're likel=
y
> to end up doing anyway: installing thread inserts (Helicoil or similar). =
I
> think 5/16" bolts would be sufficient.
>
> Bob
> On 11/22/2018 6:15 AM, simon.lachlan@alexarevel.plus.com wrote:
>
> I=E2=80=99ll be removing my carbs soon in order to achieve clearance for =
raising
> (the front of) the engine. (Harmonic balancer installation).
>
> So, it struck me that I may give my 3 HD6s another go. Swap them with the
> current setup.
>
> Thinking it through and looking at the big box of bits, I recalled what a
> pain it is to get the nuts and two washers onto the bolts that hold on th=
e
> air filters. I have French manufactured K&N lookalikes. The bolt starts
> inside the filter, goes through the carb and gets two washers and a nut.
> Very awkward to deal with those nuts and washers. PITA.
>
> I thought that I might put in helicoils then I thought =E2=80=9CWhy not t=
ap the
> holes?=E2=80=9D
>
> The holes on my HD6s are 11/32=E2=80=9D or 8.8mm.
>
> I am no engineer but it seems to me, from looking at tables on Google,
> that I could use a 25/64=E2=80=9D drill bit and tap them out to 7/16=E2=
=80=9D. I have both
> the drill and the tap but would like some expertise applied to the issue
> before I start drilling.
>
> Any input would be much appreciated.
>
> Thanks,
>
> Simon
>
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<div dir=3D"auto">Better still get some of these:<div dir=3D"auto"><br></di=
v><div dir=3D"auto"><a href=3D"https://mossmotors.com/bracket-rear-air-clea=
ner?assoc=3D19384">https://mossmotors.com/bracket-rear-air-cleaner?assoc=3D=
19384</a><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr">On=
Thu, Nov 22, 2018, 12:48 PM Bob Spidell <<a href=3D"mailto:bspidell@com=
cast.net">bspidell@comcast.net</a> wrote:<br></div><blockquote class=3D"gma=
il_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-lef=
t:1ex">
=20
=20
=20
<div text=3D"#000000" bgcolor=3D"#FFFFFF">
<p>I've not tried this, but my first thought is that the aluminium
bodies of the SUs would be too soft; eventually, you might strip
the threads (esp. if trying to get a good seal with the filter).=C2=
=A0
Why not do what you're likely to end up doing anyway: installing
thread inserts (Helicoil or similar).=C2=A0 I think 5/16" bolts =
would
be sufficient.<br>
</p>
<p>Bob<br>
</p>
<div class=3D"m_-8138121852727981470moz-cite-prefix">On 11/22/2018 6:15=
AM,
<a class=3D"m_-8138121852727981470moz-txt-link-abbreviated" href=3D"m=
ailto:simon.lachlan@alexarevel.plus.com" target=3D"_blank" rel=3D"noreferre=
r">simon.lachlan@alexarevel.plus.com</a> wrote:<br>
</div>
<blockquote type=3D"cite">
=20
=20
=20
<div class=3D"m_-8138121852727981470WordSection1">
<p class=3D"MsoNormal">I=E2=80=99ll be removing my carbs soon in or=
der to
achieve clearance for raising (the front of) the engine.
(Harmonic balancer installation).<u></u><u></u></p>
<p class=3D"MsoNormal">So, it struck me that I may give my 3 HD6s
another go. Swap them with the current setup.<u></u><u></u></p>
<p class=3D"MsoNormal">Thinking it through and looking at the big
box of bits, I recalled what a pain it is to get the nuts and
two washers onto the bolts that hold on the air filters. I
have French manufactured K&N lookalikes. The bolt starts
inside the filter, goes through the carb and gets two washers
and a nut. Very awkward to deal with those nuts and washers.
PITA.<u></u><u></u></p>
<p class=3D"MsoNormal">I thought that I might put in helicoils
then I thought =E2=80=9CWhy not tap the holes?=E2=80=9D<u></u><u>=
</u></p>
<p class=3D"MsoNormal">The holes on my HD6s are 11/32=E2=80=9D or 8=
.8mm.<u></u><u></u></p>
<p class=3D"MsoNormal">I am no engineer but it seems to me, from
looking at tables on Google, that I could use a 25/64=E2=80=9D dr=
ill
bit and tap them out to 7/16=E2=80=9D. I have both the drill and =
the
tap but would like some expertise applied to the issue before
I start drilling.<u></u><u></u></p>
<p class=3D"MsoNormal">Any input would be much appreciated.<u></u><=
u></u></p>
<p class=3D"MsoNormal">Thanks,<u></u><u></u></p>
<p class=3D"MsoNormal">Simon<u></u><u></u></p>
</div>
<br>
<pre class=3D"m_-8138121852727981470moz-quote-pre">
</pre>
</blockquote>
</div>
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</blockquote></div>
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