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Fiat 702 Tractor

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Stub Mandrel03/11/2013 18:19:11
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I measured one at 1.97mm or 0.0775".

I can send you one if you need it.

Neil

blowlamp03/11/2013 18:51:06
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Posted by Graham Meek on 03/11/2013 18:32:56:

Hi Martin,

I appreciate your thoughts on the source of the spring driving band from old Oil seals, unfortunately on the original tractor the driving belt was a segmented type as it had to passed through two cast in apertures in the radiator assembly to get to the crankshaft pulley before being joined to go over the fan pulley.

As Mamod drive bands can be had in various lengths that can be cut and assembled in situ I thought these would be ideal, otherwise I would have to make a removable portion from the radiator assembly. I know I could have used a plastic cord, but the joins never come out to my expectations, where as the Mamod type just screw into each other.

Gray,

Hi Neil,

Many thanks for the information, I had a feeling it was 2 mm but I was not sure, I can obtain them locally as Forest Classics are just down the road. It was just that I wanted to get the design finished today if I could and now I can, thanks.

Gray,

Gray.

The reason I mentioned the garter springs from oil seals is that they join in exactly the same way as the Mamod springs, but come in various diameters, one of which I though may have been suitable if the width of the Mamod offering was not right for your application.

Martin.

Stub Mandrel04/11/2013 13:31:19
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That puts modern plastic fans to shame.

Neil

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