Topic: Rear Window Defogger Repair
in Forum: C3 Cooling and Heating Systems
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The rear window defogger fan motor in my 70 coupe is making a "rattling" noise but seem to move air properly. I haven't torn ito it yet, but would like to repair/replace while the car is in for the winter. Internet searches have been fruitless. Does anyone know where to find a replacement motor, or optionally the best place to get mine rebuilt. Any other suggestions, hints or instructions would be welcome too.
TIA--Joe
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
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#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Before condemning anything, I would get the motor out, and see if there is a dead mouse, or some other object lodged in the fan....even a candy wrapper could cause a noise. The fan could also just be loose on the motor shaft. 
Joel Adams
C3VR Lifetime Member #56 
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Might just need to balance the fan/squirrel cage. Most have some kind of balance weight on them on one(or more) of the fins, and some tend to fly off over the years.I've seen a couple of them rusted out, too...
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
in Forum: C3 Cooling and Heating Systems
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