Heater Core and blower upgrade

[ksbronco75]

i just did this upgrade today and got it all put back in... went to turn the fan on and......nothing!! i repainted the box, could i not have a good ground? does it matter witch plug goes on which side on the coil on the back? Id appreciate any help. its getting cold in kansas

 

[airbur]

I didn't have it grounded when I upgraded the motor and it wouldn't start. I sanded down the grounding point, reconnected and everything works perfectly.

 

[DirtDonk]

Don't you have to run a dedicated ground to the new motor on the GM conversion anyway? Is that what you did?
I don't think it matters which post you put which plug on, but if you get it backwards you might not get High speed function. But you should get something at least, even if it's backwards.
Again, I would think, anyway.

Paul

 

[ksbronco75]

Faulty connection in the bar fixed it. Also didn't hook up linkage right and more damper Hastings much slack in it to open. I wish I could morph into an elf whenever I have to work under these dashes lol!!

 

[airbur]

Faulty connection in the bar fixed it. Also didn't hook up linkage right and more damper Hastings much slack in it to open. I wish I could morph into an elf whenever I have to work under these dashes lol!!

Great you got it working. I much prefer cramming myself under the Bronco's dash compared to anything built in the last 20 years.

 

[pcf_mark]

What mod did you do? I can't get my top defrost the window let alone keep me warm!

 

[ksbronco75]

This is the link i used to get the info on the chevy blower motor. http://classicbroncos.com/forums/showthread.php?t=54371&highlight=blower+upgrade
I didnt upgrade the squirrel cage and it works just fine. The hardest part for me was getting the linkage back to the right fit...so mark em with a with something before you take em off is my advice. It was 17 degrees this morning here in NE Kansas and i had to turn the heater off it was cooking me out of the bronco. Make sure your defrost ducts are clear and have no holes in em to get max potential.