[Healeys] Heater motor

[bighealey3k at aim.com]

Herb,  Many years ago (early 70's) I took a BJ8 heater blower from a junk yard
and used it to provide for a forced air blower in the fresh air hose on the
driver's side (L/H) that has a vent outlet under the dash.  The ram air wasn't
enough at low speeds in the South Florida summers.  I noticed that the housing
provided for mounting the motor on ether side of the blower housing so I could
mount it on the left side of the car in a mirror fashion to the one on the
right side used on the heater blower hose.  I had to open up the motor housing
and reverse some wires inside to get the motor to rotate in the opposite
direction so the squirrel cage would rotate in the correct direction to eject
the air into the blower outlet.  I don't remember which wires but it was
pretty straight forward looking at the windings and connections inside.  So
yes it can be done.  I didn't have to alter anything else like brushes or
commutator and it still runs today.  I did have to shim up the inlet and
outlet to accomodate for the larger hose used on the fresh air vent on that
side of the car in case someone would like to do the same thing.

Larry
'67 BJ8






-----Original Message-----
From: Herbert Miller <hgmiller3 at qwest.net>
To: healeys at autox.team.net
Sent: Wed, Jul 14, 2010 5:29 pm
Subject: [Healeys] Heater motor


I need some help.
I disassembled my heater blower, BJ8, and found that the squirrel cage has
ome damaged blades, (chewed by a  resident rodent  in a previous life).
eplacements do not seem to be available.No problem, I have a couple of
xcellent spares for my MGB. Exact dimensional  match. Only one problem,
hey are designed for opposite rotation.  So here is the question. Is it
ossible to change the rotation of the blower motor. I know that changing
he polarity of the leads makes no difference.
Any help is appreciated.

Herb Miller
AN5
BT7
BJ8
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