New heater motor w/ fan blade ?

[Guest Anonymous]

The fan blade that came with the motor is loose. The pink plastic piece at the end of the shaft, that the notch of the fan blade fits over, is on tight. The other piece of pink plastic, that's on the motor side of the fan is loose, so the blade itself is loose. How do I go about getting the blade secured?

Thanks,

-Jaycen

72 tundra tii

72 agave 2002

[Guest Anonymous]

saw off the armature near the fan hub, the drive the remains of the armature out of the hub with a hammer and drift. Position the fan hub on a proper-sized socket to support the hub while removing the armature shaft. Don't try to pull or pry the fan off the shaft; you'll booger it up (voice of experience)

Fallback position: epoxy the loose pieces of hub back together, but power up the motor before the epoxy sets so you'll know you have the fan on straight. Otherwise the noise/vibration will drive you nuts!

PS--measure position of current fan on armature before removing. Position is critical to keep the fan from hitting the heater housing. And reinstall the fan with the blades facing the correct direction!

Cheers

Mike

[Guest Anonymous]

with the new motors w/ blade. Or did you purchase a new motor w/o blade and just added existing blade to it?

Thanks for the advice. How would you go about pressing the used blade onto the new motor's armature?

-Jaycen

[Guest Anonymous]

We measured the amount of armature extending out from the fan hub before removing it from the old (frozen) motor. We installed it on the new motor by placing a small socket on the hub and gently tapping on the socket to push the fan's hub onto the armature, taking measurements as we tapped until it was positioned correctly. Then you want to make sure the fan blades clear the "cold air mixer door"--the flap that closes as you open the water control valve. If it's a close fit, you can carefully cut the right angles off the slot in the leading edge of the door; that should give you enough clearance so the fan won't hit the door (thus making a very annoying dinging sound whether the blower is on or off).

Just be patient and gentle and you won't bend the fan.

Cheers

Mike

PS--don't install the fan facing the wrong way! Mark it before removal.