Heater Blower Motor - front/dash
#106
Chaps, a quick question I've now got a faint squeek on one of the fans but mainly on speed '1' and '2' so suspect the bearings are drying out.
Can I actually 'inspect' the fans (ie the squirrel cages) without taking off the firewall like you can with the 993?
What's annoying is I've just had the evaporator replaced and I told the garage to put some oil on the fan bearings as some preventative maintenance when they would obviously have had the heater matrix out. It looks like they forgot to do it
Can I actually 'inspect' the fans (ie the squirrel cages) without taking off the firewall like you can with the 993?
What's annoying is I've just had the evaporator replaced and I told the garage to put some oil on the fan bearings as some preventative maintenance when they would obviously have had the heater matrix out. It looks like they forgot to do it
#107
Yes, but I am not sure what you hope to see or accomplish. I guess if you have have some spray lubricant with a tube on it you might could get some onto the shaft and it might work its way down toward the bearings.
#108
That's what I was thinking for a first attempt to prevent me havingto take out the firewall etc
#109
I put some drops of oil on the shaft with a cut wire-hanger dipped in fluid bicycle oil (the kind you get in a small metal can with a conical nozzle). It worked.
So far 1 year without squeal.
So far 1 year without squeal.
#110
Anyone with pics/diagram of how I get easy viewing access is appreciated. I can see why they modified these for 993, not least to add pollen filters
#111
From memory: I removed the front of the casing from the main casing (losing the bottom clip in he process, I should have taped it to a string of masking tape first), then you can see the squirel cage.
Then I dipped the wire in oil and passed it through the radial spikes of the fan to drop the oil on the axis if the motor.
See picture of fan+motor in https://rennlist.com/forums/964-foru...-motors-3.html
See casings in the second post of Jeff Curtis in https://rennlist.com/forums/964-foru...nt-dash-3.html
NOTE: I only did the rights one (left one is still not squealing after 25 years....
Then I dipped the wire in oil and passed it through the radial spikes of the fan to drop the oil on the axis if the motor.
See picture of fan+motor in https://rennlist.com/forums/964-foru...-motors-3.html
See casings in the second post of Jeff Curtis in https://rennlist.com/forums/964-foru...nt-dash-3.html
NOTE: I only did the rights one (left one is still not squealing after 25 years....
#112
6th Gear
Join Date: Dec 2009
Location: Jacksonville, FL
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Can the Left A/C Blower Bearings be lubricated without removing the fan assembly?
This question relates to my 1990 Carrera 2 Coupe:
Problem: My Left A/C Blower produces a large amount of grinding noise that increases as I turn the dial for more cold air.
Your post indicated that lubricating the motor bearings might solve the problem of loud noise coming from an A/C Blower assembly. Is there a way to lubricate the motor's bearings without completely removing the fan assembly?
Thanks,
David S.
Problem: My Left A/C Blower produces a large amount of grinding noise that increases as I turn the dial for more cold air.
Your post indicated that lubricating the motor bearings might solve the problem of loud noise coming from an A/C Blower assembly. Is there a way to lubricate the motor's bearings without completely removing the fan assembly?
Thanks,
David S.
#113
This question relates to my 1990 Carrera 2 Coupe:
Problem: My Left A/C Blower produces a large amount of grinding noise that increases as I turn the dial for more cold air.
Your post indicated that lubricating the motor bearings might solve the problem of loud noise coming from an A/C Blower assembly. Is there a way to lubricate the motor's bearings without completely removing the fan assembly?
Thanks,
David S.
Problem: My Left A/C Blower produces a large amount of grinding noise that increases as I turn the dial for more cold air.
Your post indicated that lubricating the motor bearings might solve the problem of loud noise coming from an A/C Blower assembly. Is there a way to lubricate the motor's bearings without completely removing the fan assembly?
Thanks,
David S.
Last edited by ffc; 07-29-2016 at 09:10 AM.
#114
This question relates to my 1990 Carrera 2 Coupe: Problem: My Left A/C Blower produces a large amount of grinding noise that increases as I turn the dial for more cold air. Your post indicated that lubricating the motor bearings might solve the problem of loud noise coming from an A/C Blower assembly. Is there a way to lubricate the motor's bearings without completely removing the fan assembly? Thanks, David S.
It's blind, and produces an odour for a while. But I've found doing this a couple times a year allows for quiet fan use.
Cheers
FS
#116
Rennlist Member
G
#118
A set of Uro fans are available for less than $350. There's no way the Porsche fans are worth nearly $900 a piece, it's just that they became rarer and rarer as time went by and the prices went up as a result. I'll probably buy a set and install them as my drivers side fan squeals under certain loads and will have to be replaced sooner or later. Might as well swap out both when I''m in there!
G
G
#119
Burning Brakes
Wondering how the URO fans have worked for you? I need to replace both fans, they keep squeaking and I have tried lubricating them 2x and it never lasts long until the squeak returns. The price of the URO models are so much less expensive ($173 vs $919.50 for OEM on Pelican) it is tempting to try them out but thought I would see if you or anyone had any experience with the URO fans.
So that's well and truly jinxed it now