[Healeys] Exhaust hangers

[Michael MacLean]

It seems my original inquiry has evolved into a Concours Guide correction.
Glad to be of service to the Healey community.  More than likely the hanger
and clamp I ordered from Moss will be UNF threads.  While I respect a
restoration where every fastener is correct to date of assembly on the
line, I am not trying to recreate my car to that standard.  I appreciate
all the photos of the parts involved even though some have said it is not
on their car and is not exactly necessary.   I'm just trying to make it
"look" right in the beginning. If it rusts off after a number of years that
will just like they did originally.  That aside, I still have not seen a
photo of the assembly in place on the car. Anyone?
Mike MacLean

On Tue, May 23, 2023, 11:10 AM Curtis Arndt <cnaarndt at gmail.com> wrote:

> Hank
>
> Thanks! Very cool photo, may we use this for the AH Concours Guidelines?
>
> No one can tell just when the "U" bracket threads changed.
>
> Many Whitworth fasteners on the late BN1s and BN2s were changed over to
> UNF in late '55 nad '56. Most of these changes were documented in the
> factory parts manual and service bulletins while some were not
> documented at all. Like Hank stated, when the parts bin ran out, new items
> were often sourced and installed, and not necessarily documented.
>
> Until we can confirm that were UNF threaded "U" brackets used on later
> 100s in lieu of the BSF ones, then the assumption has to be that they were
> used until the end of BN2 production. So, if anyone out there has an
> original "U" clamp from a late BN1 or BN2 with UNF threads, please submit
> documentation to Michael Salter and me so that we can update the Concours
> Guidelines.
>
> Cheers,
>
> Curt Arndt
>
> On Tue, May 23, 2023 at 8:59 AM Hank Leach <gradea1 at charter.net> wrote:
>
>> Ok, as long as we are showing clamps, here is my NOS exhaust bracket
>> set.  It was still wrapped in this photo, but as Curt says- its British
>> thread-probably until mid 1954 when they tried to unify or whenever the bin
>> holding exhaust brackets ran out and they refilled it. Whichever came
>> first. They did not throw any away in lieu of unified replacements.
>>
>> Likely, Michael's new set will be UNF as they are not making any early
>> parts for "purists"-same holds true on the rear gearbox mounts and other
>> items as well. Hank
>>
>> -----------------------------------------
>> From: "Curtis Arndt via Healeys"
>> To: "Michael Salter"
>> Cc: "Ahealey help"
>> Sent: Tuesday May 23 2023 8:27:22AM
>> Subject: Re: [Healeys] Exhaust hangers
>>
>> *<To be correct the "U" clamp should have UNF threads.   Just sayin'>*
>>
>> Michael, FWIW, both of my ORIGINAL "U" shaped clamps have BSF
>> fasteners... See photos. I reused one of my originals when I restored my
>> BN1. Modern reproduction "U" clamps use UNF or more commonly UNC fasteners.
>>
>> On Mon, May 22, 2023 at 7:33 PM Michael Salter <michaelsalter at gmail.com>
>> wrote:
>>
>>> The strut attaches to an extra length oil pan screw, the one directly
>>> below the spot where the tach cable attaches to the tach drive housing.
>>> To be correct the "U" clamp should have UNF threads.   Just sayin'
>>>
>>> M
>>>
>>> On Mon., May 22, 2023, 5:47 p.m. Michael MacLean via Healeys, <
>>> healeys at autox.team.net> wrote:
>>>
>>>> Excuse my ignorance, but can someone tell me what number 8 is bolted to
>>>> and where does it clamp to the exhaust pipe? Anyone have a picture of this
>>>> hanger in place?  I am ordering all the hangers for the exhaust system to
>>>> install before I take the car off the jack stands.
>>>> Mike MacLean
>>>>
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