[Healeys] Fwd: Helicoils in SU carbs

Thomas & Britta Willig willig at wtnet.de
Sat Sep 24 03:54:39 MDT 2016


> Ira,
> 
> 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.
> 
> Thomas Willig
> 
>> Am 23.09.2016 um 17:46 schrieb i erbs <eyera3000 at gmail.com>:
>> 
>> Lin, You raise a great question.
>>  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.
>> 
>> Ira Erbs
>> Portland,OR
>>       _______                                  _______
>>      (______ \____1959 BN4____/ _______)
>>          (_________________________)
>>           BT7 engine and disk brakes
>> 
>> Please excuse random auto corrects and misspelled words
>> 
>>> On Fri, Sep 23, 2016 at 3:50 AM, Linwood Rose <linwoodrose at mac.com> wrote:
>>> 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.
>>> 
>>> What size helicoil is used? In my case I am using HD6 carbs if that matters.
>>> 
>>> Thank you!
>>> 
>>> Lin
>>> 
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>> 
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