I think I can answer that one.
Reversing the wires reverses the direction of the motor and blade. Flipping
the fan makes it work the way it was designed since the blades are not
designed like a Triumph fan and are not efficient if run in the wrong
direction.
Joe
----- Original Message -----
From: "Bob Danielson" <75TR6@tr6.danielsonfamily.org>
To: "'Randall'" <tr3driver@ca.rr.com>; "'Peter C'" <peter@nosimport.com>;
<triumphs@autox.team.net>
Sent: Thursday, August 07, 2008 11:24 AM
Subject: Re: [TR] re TR4 help, cooling fan, conclusion
> Randall,
> Just curious but if flipping the blade over has no impact, why does Hayden
> have you flip the blade and swap the wires around to turn a pusher into a
> puller? I know that swapping the wires changes the rotation of the fan
motor
> but there must also be something in the fan blade construction that makes
it
> more effective? I learned the "hard" way when I went to change the fan
from
> puller to pusher and just flipped the blades over as the direction said to
> do. The part about changing the wiring around was in a completely
different
> section of the instructions. As you said, just flipping the blades had no
> impact of pusher vs. puller.
>
>
> Bob Danielson
> 1975 TR6 CF38503U
> Running w/ Throttle Body Injection
> Toyota 5 Speed & Nissan LSD
> http://tr6.danielsonfamily.org
>
>
> -----Original Message-----
> From: triumphs-bounces+75tr6=tr6.danielsonfamily.org@autox.team.net
> [mailto:triumphs-bounces+75tr6=tr6.danielsonfamily.org@autox.team.net] On
> Behalf Of Randall
> Sent: Thursday, August 07, 2008 11:14 AM
> To: 'Peter C'; triumphs@autox.team.net
> Subject: Re: [TR] re TR4 help, cooling fan, conclusion
>
> > Makes me look stupid. Anyway, turning the blade over has gotten the
> > airflow in the right direction.
>
> Don't mean to add insult to injury, Peter, but turning the blade over
would
> make no difference at all to airflow direction; just like a nut turns the
> same way no matter which side goes on the bolt first.
>
> Randall
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