hobolabo

Can someone give me a 1 2 3 step process to pull motor so i can clean out ?? That is causing it to growl nd squeal when i turn it on.
thanks in advance for your help

digitaltrucker

https://www.google.com/search?client...UTF-8&oe=UTF-8

Mailho69

I'm going to try to attach a file with the pages from the service manual for the HVAC system. If it doesn't work, I sent you a PM so we can figure out another route.

hobolabo

Appreciate the quick responses along with diagrams, will be getting into it this week and may as well replace the dash pad while I'm under there, got the good news on replacing it along with this post. I knew this cab off resto was going to easy.
Oh well, onward and upward, or should i say .... under the dash.
Thanks to all.

Mailho69

Make sure you post some pictures of your progress. I for one would love to see them.

burnthelight88

Not sure if you got this figured out yet or not...but it matters if you have A/C or not. I just did this a couple of months ago on a non-a/c truck and could be of use if that's what you're working with so let me know.

IF this is non-a/c, then you should replace the heater core while you're in there if your heat is anything less than stellar. This isn't a bad job but it's not great either, you wouldn't want to pull the heater box more than you need to.

I replaced the heater core, blower motor and blower wheel. I think I kind of regret doing the wheel because I went from stock plastic wheel to metal and the blower is kind of noisy now. Not sure if its because of the metal wheel or because the blower motor works so much better. The other parts though, I couldn't be happier, heat was so much warmer for the winter.

hobolabo

Both to mailho69 for the diagrams and to burnthelight re: heater core.
I hope to address both issues this week or next and "will" post pics of it as i progress. I'll probably have the core professionally flushed along with the radiator since i think i had a slight leak in the rad anyhow, not real concerned about alot of heat since i have never driven it past Oct. until April and has set most of the last 15 years, of the 32 years I've owned it, I just hate the noise the blower makes on start up.
One last ? though.
Can i get the blower wheel (plastic) out without breaking it? and how would you suggest the best method, it appears to be pressure fit to shaft. I did apply penetrating oil just havent attempted removal yet.
Thanks for your responses, sure is nice having friends you've never met but are there to assist.

Mailho69

Mine had a metal wheel with a set screw. I.m not sure how to remove a plastic wheel without destroying it if the retaining clip is in accessible.

I looked through the service manual and all it said was "remove wheel" with no instructions how to do it.

Sorry I can't be much help with this one.

burnthelight88

The wheel came off really easily and I feel like it was a cotter pin or set screw but can't remember 100%. Set screw I think. Either way, it won't break taking it off but you don't know that it isn't broken already. Hope for the best.

hobolabo

Upon looking closer at it seems like it is out on shaft to far by a scosch, seeing that its not a perfect world, when it starts spinning it slightly rubs the housing some until it gets full rpm's then it quits. Im going to try and press it in a tad and am pretty sure it'll work, the cage is dust dirty so ill clean that as well.
The cage wheel is plastic and where it press' onto the shaft the hub has 3 slits in it giving it the tension to hold it to the shaft, no retainer clip obvious to keep tension on the tabs. Im going to put a small socket over the shaft and give it a slight tap to set it further onto the shaft giving the clearance it needs, .001- .002 should do.... if not I'll get a bigger hammer.
It appears like the complete dash needs to come out to get the clearance if i want to remove the complete blower assy, for some reason some people just never think about the next guy or gal when designing things. Heater motors in 1978 and sparkplugs 5.4 vans, both Fords but i keep going back for more since i love challenges.