Group: alt.energy.homepower
From: Anthony Matonak
Date: Sunday, September 16, 2007 6:24 PM
Subject: Re: Attn : Nick Pine - got a live one for ya ! Re: Too much humidity from my swamp cooler

Neon John wrote:
> On 16 Sep 2007 15:34:25 -0400, nicksanspam@ wrote:
>
>>>> 12V fans have brushes that are slanted in the normal rotation direction
>>>> in a way that lets the commutators quickly grind them up in reverse?
>> My mechanic friend says no. Reversing should be OK.
>
> You're mechanic friend is wrong for most automotive DC motors. The issue isn't brush
> slant because most small motors don't use brush slant. The issue is brush timing.

I guess the simple solution would be to bolt another fan on the other
side of the radiator.

Anthony