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[Healeys] Tapping SUs for air filters.

To: "healeys@autox.team.net" <healeys@autox.team.net>
Subject: [Healeys] Tapping SUs for air filters.
From: "josef-eckert@t-online.de" <josef-eckert@t-online.de>
Date: Thu, 22 Nov 2018 17:02:56 +0100 (CET)
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
Importance: normal
References: <001701d4826d$c8fbd360$5af37a20$@alexarevel.plus.com>
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So you want to destroy three carburetter bodies???
What do you expect from the three HD6s?? More horsepower - nope!! More fuel=
=20
consumation!!!
=20
=20
=20
=20
-----Original-Nachricht-----
Betreff: [Healeys] Tapping SUs for air filters.
Datum: 2018-11-22T15:49:39+0100
Von: "simon.lachlan@alexarevel.plus.com"=20
<simon.lachlan@alexarevel.plus.com>
An: "Healeys" <healeys@autox.team.net>
=20
=20
=20

I=E2=80=99ll be removing my carbs soon in order to achieve clearance for ra=
ising=20
(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=
=20
current setup.

Thinking it through and looking at the big box of bits, I recalled what a=
=20
pain it is to get the nuts and two washers onto the bolts that hold on the=
=20
air filters. I have French manufactured K&N lookalikes. The bolt starts=20
inside the filter, goes through the carb and gets two washers and a nut.=20
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 tap=
 the=20
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=
=20
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=20
drill and the tap but would like some expertise applied to the issue before=
=20
I start drilling.

Any input would be much appreciated.

Thanks,

Simon

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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; charset=
=3DUTF-8"/><title></title></head><body><p style=3D"margin: 0px;"><span styl=
e=3D"font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;te=
xt-decoration:none">So you want to destroy three carburetter bodies???<br /=
></span></p>
<p style=3D"margin: 0px;"><span style=3D"font-family:arial,helvetica,sans-s=
erif;font-size:10pt;color:#000000;text-decoration:none">What do you expect =
from the three HD6s?? More horsepower - nope!! More fuel consumation!!!</sp=
an></p>
<p style=3D"margin: 0px;">&nbsp;</p>
<p style=3D"margin: 0px;"><span style=3D"font-family:arial,helvetica,sans-s=
erif;font-size:10pt;color:#000000;text-decoration:none">&nbsp;</span></p>
<p style=3D"margin: 0px;">&nbsp;</p>
<p style=3D"margin: 0px;">&nbsp;</p>
<p style=3D"margin: 0px;">-----Original-Nachricht-----</p>
<p style=3D"margin: 0px;">Betreff: [Healeys] Tapping SUs for air filters.</=
p>
<p style=3D"margin: 0px;">Datum: 2018-11-22T15:49:39+0100</p>
<p style=3D"margin: 0px;">Von: "simon.lachlan@alexarevel.plus.com" &lt;simo=
n.lachlan@alexarevel.plus.com&gt;</p>
<p style=3D"margin: 0px;">An: "Healeys" &lt;healeys@autox.team.net&gt;</p>
<p style=3D"margin: 0px;">&nbsp;</p>
<p style=3D"margin: 0px;">&nbsp;</p>
<p style=3D"margin: 0px;">&nbsp;</p>
<div>
<div class=3D"WordSection1">
<p class=3D"MsoNormal">I&rsquo;ll be removing my carbs soon in order to ach=
ieve clearance for raising (the front of) the engine. (Harmonic balancer in=
stallation).</p>
<p class=3D"MsoNormal">So, it struck me that I may give my 3 HD6s another g=
o. Swap them with the current setup.</p>
<p class=3D"MsoNormal">Thinking it through and looking at the big box of bi=
ts, I recalled what a pain it is to get the nuts and two washers onto the b=
olts that hold on the air filters. I have French manufactured K&amp;N looka=
likes. The bolt starts inside the filter, goes through the carb and gets tw=
o washers and a nut. Very awkward to deal with those nuts and washers. PITA=
.</p>
<p class=3D"MsoNormal">I thought that I might put in helicoils then I thoug=
ht &ldquo;Why not tap the holes?&rdquo;</p>
<p class=3D"MsoNormal">The holes on my HD6s are 11/32&rdquo; or 8.8mm.</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&rdquo; drill bit and tap them o=
ut to 7/16&rdquo;. I have both the drill and the tap but would like some ex=
pertise applied to the issue before I start drilling.</p>
<p class=3D"MsoNormal">Any input would be much appreciated.</p>
<p class=3D"MsoNormal">Thanks,</p>
<p class=3D"MsoNormal">Simon</p>
</div>
</div>=EF=BB=BF</body></html>
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