[Healeys] Correct V-belt

[Michael Oritt]

Hi Michael--

The pulley on my alternator is two-piece which allowed me to shim it with a
1/4" or so washer and use an original 3/4" wide 100 belt.
Last year I added a harmonic damper and narrow pulleys both for the crank
and water pump and removed the shim on the alternator pulley so that
everything now accepts a 1/2" belt.

Hope that clarifies things.

Best--Michael Oritt


On Sun, Mar 23, 2025 at 9:08 AM Michael Salter <michaelsalter at gmail.com>
wrote:

> Michael,  as I recall you are running an alternator on your 100. Has the
> original 100 generator pulley been fitted to the alternator, as the
> original alternator pulley would definitely require a totally different
> belt than would be correct for the 100 pulleys?
>
> On Sat., Mar. 22, 2025, 8:19 p.m. Michael Oritt, <michael.oritt at gmail.com>
> wrote:
>
>> I went to the NAPA store today to get a V-belt and was sold a smooth belt
>> with an FH (Fractional Horsepower) designation.
>> The packaging said it was for lawn and household applications of less
>> than 1 HP.
>> I asked the sales clerk if an FH belt was suitable for automotive use and
>> was told "Yes".
>> Now I see that Google AI says no--that such a belt is [i]not[/i] suitable
>> for cars.
>> Who is right--AI or NAPA and if not FH which designation is correct?
>>
>> Best--Michael Oritt
>>
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