John Cowan wrote:
>
> Previous threads on this topic warn of a dangerous oscillation at about
> 5400 RPM with the non-standard fan. This is interesting since there has
> also been mention of the six-bladed plastic fan being standard on some
> later TR-4As. TRF catalog offers it as an option and I'm thinking of
> installing one on my own TR-4A. Its a lot less expensive than a metal
> replacement.
>
> John Cowan
>
> At 08:38 AM 10/15/97 -0400, you wrote:
> >Good day fellow listers:
> >At a recent British car meet I noticed a few TR4A's running what appeared
> >to be TR6 plastic fans on the fan hubs. Wasn't able to track down the
> >owners to find out about this. Anyone know about this "conversion" & what
> >is involved? I'm assuming the same conversion would work on a 3A, but you
> >would loose the hand crank bolt. Any more effective cooling with a multi
> >blade, plastic fan? Thanks for any leads.
> >
> >Angelo Graham
> >1959 TR3A
> >Waterloo, Ont. Canada
> >
> >
> >
Angelo & john, there is a six bladed fan used on T/R 4-A called a
tropical fan, hard to find, they are listed in V/B 10-0105 pg. 79 also as
Bob Shaller recomends a Volvo 122-S, just file slightly two of the four
mounting holes , easy installation for both.
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