[Healeys] Fasteners and Air Intake Stuff

Curtis Arndt cnaarndt at gmail.com
Fri Nov 6 05:33:17 MST 2020


Hi John,

I'm not familiar with the "triangular aluminum adapter plate " on the BN1/2
master cylinder mounting.  Is this a RHD thing?

Cheers,

Curt

On Fri, Nov 6, 2020 at 4:05 AM john harper <ah100tech at gmail.com> wrote:

> Curtis
>
> As you say UNF but it might be worth adding that the triangular
> aluminium adapter plate has a short countersunk bolt that is also UNF.
>
> Sometimes new owners when rebuilding are not aware of this plate and
> cannot work out how to fit the master cylinder.
>
> Rgds
>
> On Fri, 6 Nov 2020 at 11:04, Curtis Arndt <cnaarndt at gmail.com> wrote:
>
>> Both of the master cylinder mounting bolts on most (most likely all) BN1s
>> and definitely all BN2s were UNF.  You may have to run a 5/16 UNF tap into
>> the holes to clean them out.
>>
>> On Thu, Nov 5, 2020 at 9:52 PM Michael MacLean via Healeys <
>> healeys at autox.team.net> wrote:
>>
>>> Healey 100 listers,
>>>      Can someone please confirm to me that the mounting bolts for the
>>> master cylinder on a BN1/2 is BSF threads or UNF.  I started to thread in a
>>> UNF bolt to mount the master cylinder and the familiar one turn and then
>>> stop when I am using the wrong thread on this car appeared.  I firmly
>>> believe if it's hard to do, you are doing it wrong.  Also, can someone
>>> confirm the horizontal part of the split air director that mounts behind
>>> the radiator grill is attached with two of the screws for the bumper
>>> apron?  I see no other attachment points other than the top of the air
>>> director vertical panel after it is bolted to the horizontal panel.  Where
>>> is the top attachment point on the body for the vertical panel?  This would
>>> be much easier if I had someone's BN1/2 to look at during assembly, but I
>>> am on my own pretty much relying on pictures I can find on the internet.
>>> Mike MacLean
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