[Tigers] Blower/Heater

[Ron Fraser]

Jim
    I found a Smith blower motor in my parts.  
 
Just the motor draws about 2 amps - with the blower cage on the shaft about
3.5 amps.
 
I have not looked to see if there is amp change when the motor is mounted to
the housing.
 
My guess is the bushings are a bit dry but I will not know until I look
inside.
 
Ron Fraser

-----Original Message-----
From: Rollright at aol.com [mailto:Rollright at aol.com] 
Sent: Wednesday, January 20, 2016 9:33 AM
To: rfraser at bluefrog.com
Cc: tigers at autox.team.net
Subject: Re: [Tigers] Blower/Heater



Thanks Ron for the current draw spec. Very good information
 
Jim A
 
In a message dated 1/19/2016 5:24:14 P.M. Eastern Standard Time,
rfraser at bluefrog.com writes:


Jim
    The blower motor on my Tiger was running slow at one time.  I found that
the motor was drawing over 1 amp.  The motor bushings were seized to the
motor.
I cleaned the motor shaft and lubed the bushings.  The blower ran much
better and only drew around .1 amp.  I don't recall exactly what the final
amp draw was, too long ago.   Checking the amp draw is one way of checking
the motor/ bushing condition.
 
    The heater core is sized nicely IMO.
You have to check that the core is not plugged - I back flush the core now
and then to get the sediment out of it.
The air has to go through the core not around it for it to work correctly.
 
Ron Fraser
 
 

 -----Original Message-----
From: Tigers [mailto:tigers-bounces at autox.team.net] On Behalf Of
Rollright--- via Tigers
Sent: Tuesday, January 19, 2016 3:02 PM
To: tigers at autox.team.net
Subject: Re: [Tigers] Blower/Heater




Hello,
 
Though my Tiger 1A is tucked away for the Massachusetts winter, thoughts of
improvements/fix-ups still pass through my head. This question is about the
anemic demister/heater system.
 
Two components make up this system
1) the blower with the squirrel cage fan
2) the heater radiator
 
The blower fan seems like it could use a redesign. SOOOO slow. Mine is
working same as it ever was. Anybody tried upgrading this?
The radiator seems awfully small. Any smart-guy thoughts on this?
 
Anything else I should be thinking of? Any Ideas?
 
Even if the heater isn't regularly used, I'd like to be able to count on the
system to defog the windshield. 
 
Jim Armstrong
382002083
Mk 1A
code 86
TAC # 0763

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