Patrick, mate...
If you flip the fan over it will still move air in the same direction,
as you've only flipped the fan over 180 degrees, not 90. Think about
it!
Ok, now that I've been very snotty about this... I should say that if
it is backwards, sometimes the pitch profile is such that it does not
move air as efficiently, causing overheating. The profile should be
such that the rounded side of the fan blade (i.e. like an airplane
wing) should always be facing forward. This way will maximize
airflow.
Best Regards,
Alan
'53 BN1 '64 BJ8
On 5/17/06, Quinn, Patrick <Patrick.Quinn@det.nsw.edu.au> wrote:
> G'day
>
> I have received a Sprite question that I am unable to answer and I
> thought someone out there would know.
>
> It concerns the pitch of the radiator fan fitted to a '67 Sprite. The
> car is experiencing overheating problems and after having the radiator
> serviced, new thermostat and radiator cap it is still doing the same
> thing.
>
> It's been suggested that perhaps the fan has been connected back to
> front and is trying to push air forward instead of drawing it backwards
> through the radiator. So the owner removed the fan and turned it around
> and it's still doing the same. He wants to know if there are left or
> right pitched fans and if the fans are reversed then does the air get
> pushed or pulled.
>
> Many thanks
>
> Patrick Quinn
> Sydney, Australia
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