Blower moter screeming?

[632 Regal]

The old detroit metal vehicles allowed you to spray a lubricant of choice through a vent hose that would eventually find it's way into the fan motor bushings... is there a trick to these besides dynamite to get in there? I do not want to disassemble everything just to lube the ****ers, has to be a trick.

[ahlem]

I just changed my blower motor and it didn't take too long. If you wanted to open the covers to get at the bearings on the motor you probably have less than an hour to do the whole job. a 1/4" drive ratchet was most helpful to get the screws holding the outer cover off. If you like, I can try lubing the still functional but screeching old motor and see if it makes a difference. I scored a used motor at LKQ for about $29 so it was worth changing.

[Ross]

If it's screaming the bushing are done. It's not worth the effort of getting to it to change it for an unknown used or lube it. Shogun's site has posted the write up I did years ago for using an MB motor that is half the price. Fixed right <$100 or do it again?

[shogun]

yes, here is the write up by master Ross Lagergreen
http://twrite.org/shogunnew/fixes/climate.html

[632 Regal]

Wow a lot of them jar the memory, thanks for the bunch Shogun. So it looks like I can get to the blowers from under the hood, I'm sure the V8 will have it's challanges but at least this points me in the right direction. The motors aren't really screaming but on low you can hear a chatter and I would rather lube now than later when it gets really bad. Any particular long lasting lube I should use?

[ScottyWM]

Very timely info... mine just started squeaking intermittently. Not something I want to tackle anytime soon though.

[shogun]

my one also chatters at the moment till it gets warm. Have already some spare ones here, but maybe I try a test with greasing the bearing, Gale also has some info about brushes
http://www.nmia.com/~dgnrg/page_15.htm

[ahlem]

Well, I lubed my old screaming blower with lithium grease and it quieted down. I could feel play in the bearing so I don't think it would be a permanent fix. If you had lots of time to open up the housing each time it squeeked, you might as well do it right and change the blower the first time. If you put in some sort of tube/section of brakeline, you could probably set it up to squirt some lube in the tubes as needed. Can't see much time-effort-money savings in the long term.

[ScottyWM]

Mine has just developed a new thing. The intermittant squeak is still there maybe 20% of the time, but now the blower just sometimes stops alltogether. But if I turn the speed to 4, it'll kick it back on, sometimes with a little "thump" sound, and then it'll run on any speed again. I'm assuming the bearing(s) is just freezing up and the extra speed (voltage) is kicking it loose. Does this sound about right?

I guess it's about time to dig in to it...

[MasterMorality]

Getting to the blower motor isn't that bad, you basically drain a little coolant, remove the coolant tank on the firewall, and unbolt the cover plate and it's there. You could probably be in an out in a bit over an hour.