I believe that you will find that the hole is in all your pulley parts
and the fan.
It was put there after your fan was balanced as an unit. If you
substitute parts,
you are supposed to fill in the holes and rebalance the unit. You then
drill a new
hole through the balanced unit. I am not making this up!! It all comes
from the
factory TR2/3 manual. I am just wading through this section as I have
discovered
that my fan extension bolt is sheared off in the crank.
Bob
1960 TR3 TS57799L
bbrewer@qnet.com wrote:
> I've thought that my TR3A didn't have a timing mark until I took the belt
> off and found that there is a small hole in the pulley right below where we
>had
> made a mark with liquid paper. Obviously, this must be the timing mark, but
>how
> is one supposed to see it with the belt covering it? Most crank pulleys have
> some sort of colored slot for a timing mark.
> What gives? Are they all like this?
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