[DeTomaso] Blower motor replacement

Kirby Schrader kirby.schrader at gmail.com
Fri Jan 28 16:07:43 EST 2011


Ken,

I have not looked into that....
Sounds like a decent idea.

Kirby

On Fri, Jan 28, 2011 at 14:51, Ken Green <kenn_green at yahoo.com> wrote:

> I understand that you could just wire the PWM to a high speed terminal of a
> motor multi-speed motor, but I wondered if there is a better single speed
> motor out there.
>
> Seems like a PWM operating at a higher frequency might get rid of the
> buzz.  I've looked at some specs for different PWM power supplies in the
> past and the frequency can vary, at the same duty cycle, based on the
> application.
>
> Ken
>
>
>
> --- On *Fri, 1/28/11, Kirby Schrader <kirby.schrader at gmail.com>* wrote:
>
>
> From: Kirby Schrader <kirby.schrader at gmail.com>
> Subject: Re: [DeTomaso] Blower motor replacement
> To: "Ken Green" <kenn_green at yahoo.com>
> Cc: DeTomaso at realbig.com
> Date: Friday, January 28, 2011, 12:22 PM
>
> In my GT-40, I used the fans that were already there. It has two.
> I plan to hook it up to my existing motor in the Pantera.
>
> You can wire the PWM up to any DC brushed motor. All the PWM does is pulse
> the fan motor with smaller voltage pulses to slow it down. Note that you
> may
> be able to hear a very faint buzzing noise at very low speeds.
>
>
> On Fri, Jan 28, 2011 at 14:14, Ken Green <kenn_green at yahoo.com<http://us.mc308.mail.yahoo.com/mc/compose?to=kenn_green@yahoo.com>>
> wrote:
>
> > I assume you just use a single speed fan with the PWM power supply.  Is
> > there a preferred after market single speed fan motor?
> >
> > Ken
> >
> > --- On *Fri, 1/28/11, Kirby Schrader <kirby.schrader at gmail.com<http://us.mc308.mail.yahoo.com/mc/compose?to=kirby.schrader@gmail.com>>*
> wrote:
> >
> >
> > From: Kirby Schrader <kirby.schrader at gmail.com<http://us.mc308.mail.yahoo.com/mc/compose?to=kirby.schrader@gmail.com>
> >
> > Subject: Re: [DeTomaso] Blower motor replacement
> > To: "Brian Hill" <mazdastuff at yahoo.com<http://us.mc308.mail.yahoo.com/mc/compose?to=mazdastuff@yahoo.com>
> >
> > Cc: DeTomaso at realbig.com<http://us.mc308.mail.yahoo.com/mc/compose?to=DeTomaso@realbig.com>
> > Date: Friday, January 28, 2011, 11:54 AM
> >
> > Brian,
> >
> > Had time over lunch and did some searching and' GT-40 Jack' recommended
> > this
> > one, too. (he'll love it when I tell him I used that name...)
> >
> >
> >
> http://cgi.ebay.com/12V-15A-DC-Motor-Speed-Control-PWM-HHO-RC-Controller-/260723571546?pt=LH_DefaultDomain_0&hash=item3cb455fb5a
> >
> >
> > Again, you have to move the potentiometer to the dash and hook it up with
> > wires.
> >
> > Kirby
> >
> >
> > On Fri, Jan 28, 2011 at 09:27, Brian Hill <mazdastuff at yahoo.com<http://us.mc308.mail.yahoo.com/mc/compose?to=mazdastuff@yahoo.com>
> <http://us.mc308.mail.yahoo.com/mc/compose?to=mazdastuff@yahoo.com>>
> > wrote:
> >
> > > Thanks, I have been watching this whole blower motor thread.  Mine
> could
> > > definitely use some upgrading.
> > > Brian
> > >
> > > ------------------------------
> > > *From:* Kirby Schrader <kirby.schrader at gmail.com<http://us.mc308.mail.yahoo.com/mc/compose?to=kirby.schrader@gmail.com>
> <http://us.mc308.mail.yahoo.com/mc/compose?to=kirby.schrader@gmail.com>
> > >
> > > *To:* Brian Hill <mazdastuff at yahoo.com<http://us.mc308.mail.yahoo.com/mc/compose?to=mazdastuff@yahoo.com>
> <http://us.mc308.mail.yahoo.com/mc/compose?to=mazdastuff@yahoo.com>
> > >
> > > *Cc:* DeTomaso at realbig.com<http://us.mc308.mail.yahoo.com/mc/compose?to=DeTomaso@realbig.com>
> <http://us.mc308.mail.yahoo.com/mc/compose?to=DeTomaso@realbig.com>
> > > *Sent:* Fri, January 28, 2011 9:24:36 AM
> > >
> > > *Subject:* Re: [DeTomaso] Blower motor replacement
> > >
> > > Brian,
> > >
> > > Just go to eBay and do a search for pulse width modulator. There are
> many
> > > available at almost any price range you'd like.
> > > If you want the exact model I used on the GT40, I'll need to go home
> and
> > > look it up. It's been awhile, but it kinda' looks like this one...
> > >
> > >
> > >
> >
> http://cgi.ebay.com/ebaymotors/PWM-PULSE-WIDTH-MODULATOR-HHO-BROWN-GAS-DRY-FUEL-CELL-/110640597830?pt=Motors_Car_Truck_Parts_Accessories&hash=item19c2b18b46
> > >
> > > You have to unsolder the potentiometer from the board, install the
> > > potentiometer into the dash and then run wires accordingly.
> > >
> > > Regards,
> > > Kirby
> > >
> > > On Fri, Jan 28, 2011 at 09:15, Brian Hill <mazdastuff at yahoo.com<http://us.mc308.mail.yahoo.com/mc/compose?to=mazdastuff@yahoo.com>
> <http://us.mc308.mail.yahoo.com/mc/compose?to=mazdastuff@yahoo.com>>
> > wrote:
> > >
> > >> Where did you source that from Kirby?
> > >>
> > >> Brian
> > >>
> > >> ------------------------------
> > >> *From:* Kirby Schrader <kirby.schrader at gmail.com<http://us.mc308.mail.yahoo.com/mc/compose?to=kirby.schrader@gmail.com>
> <http://us.mc308.mail.yahoo.com/mc/compose?to=kirby.schrader@gmail.com>
> > >
> > >> *To:* Jim Gray <grayjim at att.net<http://us.mc308.mail.yahoo.com/mc/compose?to=grayjim@att.net>
> <http://us.mc308.mail.yahoo.com/mc/compose?to=grayjim@att.net>
> > >
> > >> *Cc:* DeTomaso at realbig.com<http://us.mc308.mail.yahoo.com/mc/compose?to=DeTomaso@realbig.com>
> <http://us.mc308.mail.yahoo.com/mc/compose?to=DeTomaso@realbig.com>
> > >> *Sent:* Fri, January 28, 2011 9:09:44 AM
> > >> *Subject:* Re: [DeTomaso] Blower motor replacement
> > >>
> > >> Rather than repair the old resistor network, etc. etc.
> > >>
> > >> Has anyone considered using a PWM (Pulse Width Modulator) instead?
> Fully
> > >> adjustable ('infinite' speed adjustment), cheap, works well (I
> installed
> > >> one
> > >> on my GT40) and no extra heat dumped into your cabin due to heating up
> > >> resistors.
> > >>
> > >> Just wondering... I plan to put one in my Pantera soon.
> > >>
> > >> Kirby
> > >>
> > >>
> > >> On Wed, Jan 26, 2011 at 20:44, Jim Gray <grayjim at att.net<http://us.mc308.mail.yahoo.com/mc/compose?to=grayjim@att.net>
> <http://us.mc308.mail.yahoo.com/mc/compose?to=grayjim@att.net>>
> > wrote:
> > >>
> > >> > Forum:
> > >> >
> > >> >
> > >> >
> > >> > I'm in the midst of replacing my heater blower motor with a new
> 3-spd
> > >> unit.
> > >> > As of now 1) I have removed the three screws on top of the cover on
> > the
> > >> > passenger side of the squirrel cage housing. 2) I've removed the
> four
> > >> > screws
> > >> > and the half-moon clamp that holds the motor in 3) I've removed the
> > >> brace
> > >> > from the inside edge of the passenger side housing.
> > >> >
> > >> >
> > >> >
> > >> > BUT I can't get the plastic housing to let go! The motor is loose
> but
> > I
> > >> was
> > >> > afraid to use too much force on the plastic housing.  It seems that
> > the
> > >> > bottom edge is somehow attached to the evaporator unit.  It appears
> > that
> > >> > there is some sort of rubberized goop along the bottom edge. Could
> > this
> > >> > just
> > >> > be some sort of sealant that was applied to get a good seal on the
> > >> plastic
> > >> > housing?  Does the plastic housing somehow snap into a connector of
> > >> sorts
> > >> > on
> > >> > the evaporator unit?
> > >> >
> > >> >
> > >> >
> > >> > Any ideas are welcome.
> > >> >
> > >> >
> > >> >
> > >> > Thanks
> > >> >
> > >> >
> > >> >
> > >> > Jim Gray
> >
> > >> >
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