Don't know if this helps, but I went through the same kind of thing
due to replacement of the Crank Pulley / Harmonic Dampener on my race
TR-4. We have a local farm supply store called Farm & Fleet which
has a large selection of pick it yourself belts. In my case, the
belt is narrow so is more readily available than the original wide
ones would be. I bought groups of 3, tried them on my car, went back
and returned them and bought another group of 3 until I found the
right size. If you have a place like this in your area, it's a
thought. Using Randall's string method would help get you in the
right ballpark to start with either using the "choose it yourself"
method or the mom and pop FLAPS store (and that's who we should be
supporting anyway) will eventually get you there.
Cheers, Tony Drews
At 10:40 AM 5/27/2013, Randall wrote:
> > Does anyone have any other suggestions for a pulley belt that
> > will fit a TR3A with an alternator?
>
>Pull a string around the pulleys, and mark the length. Take the string to a
>local, independent auto parts store (not one of the big chains) and explain.
>They'll let you try several belts until you find one that fits. The string
>will, of course, be shorter than the belt you need (because the string lays
>in the bottom of the vee while the belt has to ride against the sides) but
>only by an inch or so.
>
>-- Randall
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