Randall
What then is the purpose of the "hunk of rubber" that hangs at the back
of the transmission?
TIA
>
>> If you take the engine driven fan off a TR3 do you
>> have to do some sort of balancing?
>
> The short answer is No, the engine should remain balanced without the
> fan.
> The weights on the fan are only to balance the fan itself.
>
> However, the racers say that the original metal fan (& it's rubber
> mounts)
> functioned as a harmonic dampener, to prevent crank failure from a
> resonance
> just above factory redline. If you plan to run your engine over 5000
> rpm at
> all, then some sort of substitute dampener is a good idea. It's not
> clear
> to me how true this is ... I'm just repeating what I've heard from
> people
> who should know. I've run without a metal fan or dampener for many
> years
> and never broken a crank. However, the "hot rod" motor I'm building
> will
> have one ...
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