Greg: Good Research! Maybe you could share more about the 'harmonic
balancer', what it is, what it looks likem how it mounts to the crank.
What it costs, as Brian and I seem to be dedicated to eliminating the
original metal fan and its problems.
Sherman
Sherman Taffel
Columbia MD
http://members.home.net/staffel/triumph1.html
- - - - -
greenman62@hotmail.com wrote:
>
> As it happens I was just looking a the definition of a viscous fan in
> R&T's automotive dictionary... As I understand the way the Vfan works
> is on air flow... as long as the air flow through the rad is
> sufficient to be eqivalent to what the fan would draw (were it
> running full speed) the fan "freewheels" with no power other than the
> airflow coming throght the rad. When the car's speed falls (e.g.
> traveling slowly or stopped for traffic) the viscous coupling drives
> the fan to a speed to compensate for the lack of airflow.
>
> Regardless of that, my opinion is you would be still ahead in the
> weight saved by ridding yourself of the TR fan and pedestal, and
> going for the electric fan. While I haven't weighed my set up, I'm
> positive the harmonic balancer, electric fan, wiring and aluminum
> mounts for all of the above are lighter than the pedestal, pulley and
> fan assembly I removed.
>
> Greg Petrolati Champaign, Illinois 1962 TR4 (CT4852L)
>
Sherman Taffel wrote:
>
> >I know the earlier Jensen-Healey Roadsters used fixed plastic fans,
> >maybe the same as the TR6, however, the GT viscous fan was larger in
> >diameter (17") as well as being viscous, and cooling (a problem on the
> >aluminum 907's) was improved. Later cars also came stock with oil coolers.
> >
> >I'm more comfortable than ever with my decision to go electric with the
> >TR4, and in fact will do some research about eliminating the Viscous fan
> >on the GT and adding an electric to that car as well. I know the
> >electric fan in pusher mode is an option that has been chosen by many
> >J-H's, but usually in addition to the stock fan.
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