C3 Blower Motor - Corvette Forum : DigitalCorvettes.com Corvette Forums
 
 
Go Back   Corvette Forum : DigitalCorvettes.com Corvette Forums > C3 Corvette Forums > C3 Corvette
Register Forums Garage Garage Mark Forums Read Auto EscrowInsurance

Notices

C3 Corvette
C3 Corvette General | Technical | Performance | Aftermarket | Discussions

Other sections:
Corvettes Classifieds
Corvette Detailing & Car Care
Corvette Audio/Video/Radar
General Automotive/Shop/Tools
Corvette Performance Driving/Racing

( Sponsored by: Zip Corvette Parts )

Shops/Tuners
Custom Image Corvettes
A&A Corvette
Corvette tuner

Interior
Corvette aftermarket products

Insurance

Parts & Products
Race Ramps
Edelbrock
ATI/Procharger
Corvetteguys.com
Melrose Motorsports
Parts Taxi
Airaid
Mid America Motorworks
Pfadt Racing
Madvette Motorsports
Hi-tech Custom Concepts
Corvette aftermarket products
Corvette Garage
Corvette Parts and Accessories
Corvette Car Care Products
Corvette HID
Mid America Motoroworks

Tracks/Schools
Bob Bondurant School of High Performance Driving
Corvette driving school

Wheels/Tires
Cray Wheels

Services
BADWERKS.com
Reply
 
Thread Tools
Old 06-15-2004, 07:23 AM   #1
vintagemuscl
DC Crew
 
vintagemuscl's Avatar
 
Posts: 1
Member #13611
Member since: Jun 2004
Location: Georgia

My Corvette(s)
64 and a 71

Thanks: 0
Thanked 0 Times in 0 Posts
Question C3 Blower Motor

I recently purchased a sweet 71 roadster, white, redleather, standard motor, Kelsey Hayes spoke wheels.....bla bla bla.

Anyway, I know the C3 A/C's leave a lot to be desired, but will a replacement blower motor move more air than the old stocker?
vintagemuscl is offline   Reply w/quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 06-15-2004, 07:40 AM   #2
1971bigblock
DC Crew
 
1971bigblock's Avatar
 
Posts: 179
Member #9042
Member since: Feb 2004
Location: Miss/On/Canada

My Corvette(s)
1971 Corvette 454 Rag

Thanks: 0
Thanked 0 Times in 0 Posts
Re: C3 Blower Motor

Quote:
Originally posted by vintagemuscl
I recently purchased a sweet 71 roadster, white, redleather, standard motor, Kelsey Hayes spoke wheels.....bla bla bla.

Anyway, I know the C3 A/C's leave a lot to be desired, but will a replacement blower motor move more air than the old stocker?
I'd like to hear some input on this one too
1971bigblock is offline   Reply w/quote Quick reply to this message
Old 06-15-2004, 08:40 AM   #3
norvalwilhel
Account Disabled.
 
norvalwilhel's Avatar
 
Posts: 746
Member #1141
Member since: Jun 2003
Location: Waterloo Ontario Canada

My Corvette(s)
75 supercharged bigblock

Thanks: 0
Thanked 0 Times in 0 Posts
With AC it is usually a problem with the condensor getting plugged. The condesor gets a grease on it that collects dust and eventually it plugs restricting air flow. The only solution is pulling the condensor or washing it with brake cleaner. I had this done on my older Bonneville and it really improved the air flow.
norvalwilhel is offline   Reply w/quote Quick reply to this message
Norval
Old 06-15-2004, 09:33 AM   #4
Patrick
DC Crew
 
Patrick's Avatar
 
Posts: 53,129
Member #1
Member since: Jan 2003
Location: Arizona / USA!

My Corvette(s)
Current: 2003 Convertible .... Previous: 1996, 1996 GS, 2001 vert, 2002 Z06, 2003, 2007 Z51, etc...

Thanks: 17
Thanked 84 Times in 61 Posts
Re: C3 Blower Motor

Quote:
Originally posted by vintagemuscl
I recently purchased a sweet 71 roadster, white, redleather, standard motor, Kelsey Hayes spoke wheels.....bla bla bla.
Congrats on your new ride! Welcome to digitalcorvettes.
Patrick is offline   Reply w/quote Quick reply to this message
Old 06-15-2004, 10:53 AM   #5
Jlreyna
DC Crew
 
Jlreyna's Avatar
 
Posts: 1,283
Member #2287
Member since: Sep 2003
Location: Houston, Texas

My Corvette(s)
1977 Corvette

Thanks: 1
Thanked 0 Times in 0 Posts
I know a few C3 guys who have put C4 blower fans in theirs with the help of a spacer
Jlreyna is offline   Reply w/quote Quick reply to this message
John
Old 06-22-2004, 07:12 PM   #6
Bobchad
DC Crew
 
Posts: 60
Member #7819
Member since: Jan 2004
Location: Norcross, GA

My Corvette(s)
77 Coupe

Thanks: 0
Thanked 0 Times in 0 Posts
Wilcox has a fan that is supposed to fit (p/n 52466047) and is supposed to make a big difference. The blower motor and fan come as one assembly and is the same bolt pattern as the original motor. The fan itself is 1 inch deeper and has a different pitch to the blades. You must make a spacer of at least 3/4" - 7/8" thickness and use longer bolts to attach it to the housing. Use the old motor to make a cardboard template and cut the spacer from high density plastic, oak or marine plywood.

Last edited by Bobchad; 06-23-2004 at 03:12 PM.
Bobchad is offline   Reply w/quote Quick reply to this message
Old 06-23-2004, 01:12 PM   #7
mga
DC Crew
 
mga's Avatar
 
Posts: 749
Member #1749
Member since: Jul 2003
Location: rochester ny

My Corvette(s)
1981 silver two tone

Thanks: 0
Thanked 0 Times in 0 Posts
a car that old usually has dust and dirt built up on the heater core and the a/c core. over the years the build up restricts air flow. sometimes even leaves get sucked in there, not to mention bugs, etc etc. the problem is getting at them to clean them. a bigger or more powerful motor won't be any good if they are plugged.

i believe you MIGHT be able to remove the front part of the a/c box and get at them. you would have to check an assembly manual to see if you can do that.

or, you MIGHT be able to reach in there after the blower motor is removed and use a small vaccuum hose..be careful not to damage the fins.

for refrigerant, i tried r-12...didn't cool to my liking. then i tried r-134a...sucked big time...went back to r-12. then i found some stuff called 'enviro-safe' sold by autorefrigerants. the damn stuff worked perfectly and no modification was needed. install just like r-12.

it's been over 3 years since i installed that stuff and the car gives cold air every time. i am one satisfied customer.

(autorefrigerants.com)
mga is offline   Reply w/quote Quick reply to this message
http://home.rochester.rr.com/my1981/1/
Benjamin Franklin wrote "They who would give up an essential liberty for temporary security, deserve neither liberty or security"
Old 06-25-2004, 06:56 PM   #8
Red70Vette
DC Crew
 
Red70Vette's Avatar
 
Posts: 46
Member #2525
Member since: Sep 2003
Location: Cortlandt Manor,NY,USA

My Corvette(s)
1970 red cpe

Thanks: 0
Thanked 0 Times in 0 Posts
Many times the lack of air flow is more a result of debris collected in the blower box than the fan configuration itself. I had the same problem and I pulled the blower motor cleaned out the debris. sealed up all the vent connections and the result was a marked increase in air flow both for the heater and A/C.

If you are expecting the same air flow you get from a modern vehicle you can forget it. Remember this design has been improved many times over the last 30+ years.
But when working properly it is adequate at best.
Red70Vette is offline   Reply w/quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Corvette Forum : DigitalCorvettes.com Corvette Forums forums, you must first register.
Please enter your desired user name (12 CHARACTERS MAXIMUM), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Powered by vBadvanced CMPS v3.2.2

All times are GMT -6. The time now is 01:36 PM.




Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
2003-2011, DigitalCorvettes.com - All Rights Reserved