[Healeys] 100 generator pulley diameter

[john harper]

Micheal

I was confused by some of the measurements that others had made but now I
can confirm that 1B 1727 is 3.625" in diameter

However, the A70 Hereford and the A90 Atlantic had a larger diameter pulley
1B 1114 and this may have been fitted to a very early 4 cylinder 100.

On Tue, 11 Jul 2023 at 12:59, Michael Salter <michaelsalter at gmail.com>
wrote:

> My apologies regarding the diameter of the 100 generator pulleys.
> I made the unforgivable mistake of not zeroing my caliper before taking a
> measurement.
> The original pulleys 1B1727 were 3.625" in diameter.
> I have four in my box of spares, never know when you might need one, an
> they are all exactly the same diameter plus or minus a few thou.
>
> M
>
> On Sun., Jul. 9, 2023, 8:52 a.m. Michael Salter, <michaelsalter at gmail.com>
> wrote:
>
>> The outside diameter of the originals is 3.2" Mark.
>>
>> M
>>
>> On Sun., Jul. 9, 2023, 6:28 a.m. Mark Donaldson, <
>> ardmorebusiness at xtra.co.nz> wrote:
>>
>>> Learned gentlemen,
>>>
>>>
>>>
>>> The pulley on my 1956 BN2 is 3½” diameter.  I believe it to be
>>> original.  I’ve owned the car for 45 years.
>>>
>>>
>>>
>>> A friend has a BN1 with a pulley diameter of just 3”.  He thinks it is
>>> original.   I don’t.  It got me thinking.
>>>
>>> I believe his is incorrect as it was converted here in NZ from a LHD
>>> import some 30 years ago.  BN1L 226180
>>>
>>> The car has some clumsy conversions made to change it to RHD, so I don’t
>>> know what else might have been ‘cobbled up’ to get the car on the road.
>>>
>>>
>>>
>>> Can somebody of you please confirm that 3½” is correct.
>>>
>>>
>>>
>>> That said, I need another for a second 100 engine I am building as a
>>> spare.
>>>
>>> They seem to be scarce down here in NZ, and repros seem to be rather
>>> expensive.
>>>
>>>
>>>
>>> Fingers crossed.
>>>
>>>
>>>
>>> Mark
>>>
>>> Ardmore
>>>
>>> NZ
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