[Healeys] 100 generator pulley diameter

[Michael Salter]

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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