My 4A had the aluminum fan extention and yellow plastic fan installed when
I bought it 5 years ago. The yellow plastic fan has a little cylindrical
shaped peg like thing molded into it that fits in the 1/2" hole and locks
the fan to the hub so it spins at engine speed. I bought a new plastic fan
from TRF and it did not have this peg, but had four 1/2" holes drilled
around the center hole. I had to make up a little piece that would fit in
both holes to lock the fan to the hub.
I have now run into a new problem. The fan is really close to my recently
re-cored radiator. Anyone know how close is too close? There is currently
about a 1/2" gap.
-Eric
At 03:57 PM 1/12/02 EST, HDRIDER570@aol.com wrote:
>As I was rummaging through the old parts bin today I found an unusual item.
>It is a fan extension hub (Moss part 837-530). The unusual part is that it
>is cast aluminum. It has all the external dimensions of the regular steel
>part but the front flange has not been drilled for the fan mounting holes.
>It does have one 1/2" dia cast hole in the fan flange. The pulley flange
has
>only three (rather than six) mounting holes drilled. The center bore is
>drilled for a standard bolt instead of the special TR bolt that has the
>starter handle dogs.
>
>It has two numbers cast into the extention section
>
>142121 CFL
>
>and
>
>V2993
>
>Has anyone seen one of these before?
>
>EJH
>Petaluma CA
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