<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div><br></div><blockquote type="cite"><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><div></div><div>Ira,</div><div><br></div><div>In the 60-70's the SU carbs used on Volvo B18 and B20 engines all had unc threads here. Made changing the air filter on these a breeze. Always wondered why other manufacturers did not follow.</div><div><br></div><div>Thomas Willig</div><div><br>Am 23.09.2016 um 17:46 schrieb i erbs <<a href="mailto:eyera3000@gmail.com">eyera3000@gmail.com</a>>:<br><br></div><blockquote type="cite"><div><div dir="ltr">Lin, You raise a great question.<div> Why not just cut threads into the casting? Couldn't one use a tap to cut threads? It would be a brilliant solution to a complete PITA situation.</div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr">Ira Erbs<div>Portland,OR</div><div><span style="font-family:'Times New Roman',serif"> _______ _______</span><br style="font-family:'Times New Roman',serif"><span style="font-family:'Times New Roman',serif"> (______ \____1959 BN4____/ _______)</span><br style="font-family:'Times New Roman',serif"><span style="font-family:'Times New Roman',serif"> (_________________________)</span></div><div> BT7 engine and disk brakes</div><div><br></div><div>Please excuse random auto corrects and misspelled words</div></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Fri, Sep 23, 2016 at 3:50 AM, Linwood Rose <span dir="ltr"><<a href="mailto:linwoodrose@mac.com" target="_blank">linwoodrose@mac.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Who has used helicoils in their carb bodies so one doesn't have to put nuts on the back of the carbs when installing K&N or other air cleaners? Fiddling with the bolt head or nut from the back side of the carb is a pain. I believe I have read that some have used helicoils in the carb so solve this problem.<br>
<br>
What size helicoil is used? In my case I am using HD6 carbs if that matters.<br>
<br>
Thank you!<br>
<br>
Lin<br>
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