>Date: Tue, 15 Dec 1998 22:00:27 -0500
>To: laifman@flash.net
>From: James Barrett <jamesbrt@mindspring.com>
>Subject: Re: Blower
>
>Folks,
> The resistor on my Tiger II reads 1.3 ohms. If Ron's
>current measurment of 1 amp is correct then I have problems too.
>I measured, using a VOM, 3.8 amps with resistor in series and
>5 amps with the resistor bypassed.
> The power waste in the resistor is:
> I^2 x R=3.8^2 x 1.3=18.7 watts.
>Not too bad for 30+ year old technology. It still sort
>of works.
>Not only that, but Rootes has provided a backup in case
>of failure of your ignition resistor. Might be a little
>difficult to move the blower resistor to the ignition
>circuit; but it is available never the less. I could have
>used this info about 20 years ago when I had an ignition
>resistor fail on the road.
>
>
>
>
>
>At 07:38 AM 12/15/98 -0800, you wrote:
>
>>2) There is a very large resistor between the blower switch
>>and the motor.
>>
>>3) The blower switch has three wires, but the motor has 2.
>>
>>The answer is simple, Rootes has put a resistor in series
>>with the single speed motor, dropping the voltage, and hence
>>your "second", slower speed. The other switch position
>>by-passes the motor, with that extra wire, and provides it
>>with the full voltage and speed. This does not reduce the
>>power needed to drive the motor, it just makes the resistor
>>hot instead of making the motor go faster.
>>
>>It's cheaper.
>>
>>Steve
>
>
>>Reply-To: "Fraser, Ron" <Ron.Fraser@usa.xerox.com>
>>
>> The problem I found with the blower motor is that the motor shaft
>>seized to the bearings. I used a battery charger with an amp meter on the
>>blower motor, it was drawing about 5 amps and the blower was turning very
>>slowly. I pulled the motor apart, pulled the oilite bearings off the motor
>>shaft, cleaned the motor shaft and oiled the bearings, then assembled
>>blower. The blower now drew less than 1 amp and was spinning at full speed.
>>
>>Ron Fraser
>
James Barrett Tiger II 351C and others
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