[FC] Problem after installing High Volume Blower Motor

[Rickie Williams]

But the coil he mentioned was the coil on the relay...not the ignition coil.

I don't know much about relays and whether or not they have coils...I am
just taking his wording at face value.

Rickie Williams

On Thu, Oct 27, 2011 at 10:17 AM, Paul Steinberg
<noahsarkinc at earthlink.net>wrote:

> It is where you took the 12 volt connection from.  The power to the starter
> is always there, but the power to the coil is switched through the ignition
> switch.  I would use a switched and fused feed, such as the power feed to
> the radio to power the relay, so you don't have a feed back problem.  Other
> than that, I don't see anything wrong with the installation.  Presently you
> are back feeding the coil which will keep the engine running.
> Paul in CT
> ----- Original Message -----
> From: "Andrew Sego" <andrew_sego at yahoo.com>
> To: <corvanatics at corvair.org>
> Sent: Thursday, October 27, 2011 10:34 AM
> Subject: [FC] Problem after installing High Volume Blower Motor
>
>
> >I recently installed a high volume blower fan on the heater in my 63
> >Corvan. I followed the Tech Guide instructions and wired in a relay to
> >control the high speed circuit. The fan works as before in low and medium,
> >and works GREAT on high. The problem I'm having is if I shut the key off
> >with the fan still on high speed the engine will remain running. Sometimes
> >is stays running, other times it will run on for a few seconds and then
> >die. If I shut the key off with the fan switch in the off, low, or medium
> >setting the engine shuts off normally.
> >
> > The van is mostly original, except the PO wired in an externally
> regulated
> > alternator. The regulator has been replaced with a solid state unit, the
> > alternator has also been rebuilt this year. Battery is fresh. Everything
> > was working fine before the conversion.
> >
> > Here are some details about the installation. I made a strap to hold the
> > heater in place with the transaxle cover off. The brown/orange wires from
> > the fan switch were pulled from the plug, left connected to each other,
> > and insulated with tape along the harness. I mounted the SPDT 30amp relay
> > to the heater brace. I have a new wire running back from the heater
> switch
> > to the coil on the relay. The ground for the coil circuit goes to the
> > chassis, and another ground wire is also installed to the blower motor
> > flange for good measure. Fused power to the relay (terminal 30) comes
> > directly from the positive battery cable connection at the starter. I
> > chose this location for convenience. The original wire that ran to the
> > blower motor was combined with a new wire and connected to the relay out.
> > The new wire of those two runs to the blower motor. Thus the 87 terminal
> > is a junction for both wires.
> >
> > I'm wondering if somehow the connection at the starter is a problem,
> since
> > it isn't switched. Also, does is matter which side of the relay's coil
> > circuit is the power and which is the ground? I'm speaking of terminals
> 85
> > and 86. I don't think it does, just throwing it out there.
> >
> > Aside from shutting the fan switch off before the key, how do I fix this?
> >
> > p.s. This reminded of the joke: Man says "Doc, my arm hurts when I do
> wave
> > my arm like this." Doc says "Okay, that's ease to cure...Don't wave your
> > arm like that anymore!"
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