C3 Vette Registry - The Best Resource on the Net for C3 Vettes! C3 Vette
Forums -> C3 Body
Not Logged In! Login or Register!  Users Online: 16 / Help 
Features  Find C3 Parts on ebay in only 2 or 3 clicks!  | Add YOUR C3 to the Registry

Supporting Vendors
Bair's Corvettes
VetteBookStore.com
Mid America Motorworks
CorvetteClothing.com
Volunteer Vette Products

C3 of the Month
None Current
Enter Yours Today!
Online C3 Show
13
C3s are Registered

Vanity Plates
24K AU
mare
Featured Links

Buy Now
Corvette Masterpieces: Dream Cars You'd Love to Own (Hardcover)
Corvette Masterpieces: Dream Cars You'd Love to Own (Hardcover)


The Corvette Factories: Building America's Sports Car (Hardcover)
The Corvette Factories: Building America's Sports Car (Hardcover)


Corvette Fuel Injection & Electronic Engine Control: 1982 through 2001
Corvette Fuel Injection & Electronic Engine Control: 1982 through 2001


Motor Trend - $5 for 12 issues.
Motor Trend
Only $5 for 12 issues.



| Hide Signatures and Profile Pics

 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
8/1/13 7:37pm - Original Message: '72 wiper door operation'
apasbigal
Former Member
- Send Private Message


goldens bridge, NY - USA

Vette(s):
1972 T-Top 350 auto, matching numbers,Blue, ac

Joined: 11/3/2003
Posts: 498
Wiper door has never opened by vacuum since I have had the car. I can open the door manually by pushing in on the actuator button . Once open. Wipers work fine . I would like to trouble shoot the door operation . Where to begin?? Thanks. Big Al Headlights open and close. - operate just fine.


Took actuator off and BY pushing on rod there is suction and discharge from front and rear outlets . Arms and levers and other mechanisms work fairly freely. Will clean and lubricate. Actuator valve ???

|UPDATED|8/1/2013 4:37:06 PM (AZT)|/UPDATED|


____________________________________

 Reply Reply  Quote Reply w/Quote
 
Support C3VR!
Suport our advertisers
8/1/13 8:01pm - Reply: 'Re: 72 wiper door operation'
F4Gary Gold Member
Gold Member
- Send Private Message


Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.

Joined: 8/26/2006
Posts: 862
As I say in every wiper door thread, there is a vacuum solenoid mounted on the back of the tach.  It gets a signal from the wiper switch and opens to get vacuum to the door actuator.  Don't ask how I found this little part of the system.

|UPDATED|8/1/2013 5:01:56 PM (AZT)|/UPDATED|


____________________________________
 Reply Reply  Quote Reply w/Quote
8/2/13 1:01pm - Reply: 'Re: 72 wiper door operation'
apasbigal
Former Member
- Send Private Message


goldens bridge, NY - USA

Vette(s):
1972 T-Top 350 auto, matching numbers,Blue, ac

Joined: 11/3/2003
Posts: 498
How do I get to it?? What is it called?? How did you find it?? Also can some one tell me how to remove the wiper door cover. Got the door cover and trim off. BUBA had used 4 different screws, bolts , fastners. To attach door, some with Teflon sleeves, some not . Cleaning the spring, levers etc. working smoth and easyyyy. Now got to order some hardware to reattach the door and other parts. Thanks. Big Al

|UPDATED|8/2/2013 10:01:14 AM (AZT)|/UPDATED|


____________________________________

 Reply Reply  Quote Reply w/Quote
8/2/13 8:24am - Reply: 'Re: 72 wiper door operation'
dbarnesid
Former Member
- Send Private Message


Boise, ID - USA

Vette(s):
1972 mille miglia red corvette convertible. This is a car currently under restoration. The pic above is of me and my Ph.D. candidate daughter. She, not my Vette, is my pride and joy. Smile...

Joined: 5/29/2013
Posts: 159
I don't have a solution but ill be watching this one. My '72 appears to suffer the same symptoms. Best wishes!

____________________________________
 Reply Reply  Quote Reply w/Quote
8/2/13 3:20pm - Reply: 'Re: 72 wiper door operation'
F4Gary Gold Member
Gold Member
- Send Private Message


Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.

Joined: 8/26/2006
Posts: 862
This part, it mounts on the back of the tach.

http://corvetteparts.com/pictures/45890c88dff8420c56218b515a2157df_3.jpg




____________________________________
 Reply Reply  Quote Reply w/Quote
8/2/13 4:50pm - Reply: 'Re: 72 wiper door operation'
rraider1
Former Member
- Send Private Message


Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152


____________________________________
Bob R
 Reply Reply  Quote Reply w/Quote
8/2/13 5:53pm - Reply: 'Re: 72 wiper door operation'
dbarnesid
Former Member
- Send Private Message


Boise, ID - USA

Vette(s):
1972 mille miglia red corvette convertible. This is a car currently under restoration. The pic above is of me and my Ph.D. candidate daughter. She, not my Vette, is my pride and joy. Smile...

Joined: 5/29/2013
Posts: 159
rraider1 said:



That IS simplified (and helpful). Ya got something as simple as that for the wiper door? Smile That one has really got me stumped.

____________________________________
 Reply Reply  Quote Reply w/Quote
8/2/13 7:51pm - Reply: 'Re: 72 wiper door operation'
rraider1
Former Member
- Send Private Message


Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152
Sorry I thought that was the Wiper /Door sometimers hit me

____________________________________
Bob R
 Reply Reply  Quote Reply w/Quote
8/2/13 7:58pm - Reply: 'Re: 72 wiper door operation'
rraider1
Former Member
- Send Private Message


Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152


____________________________________
Bob R
 Reply Reply  Quote Reply w/Quote
8/2/13 8:10pm - Reply: 'Re: 72 wiper door operation'
F4Gary Gold Member
Gold Member
- Send Private Message


Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.

Joined: 8/26/2006
Posts: 862
apasbigal said: How do I get to it?? What is it called?? How did you find it?? Also can some one tell me how to remove the wiper door cover. Got the door cover and trim off. BUBA had used 4 different screws, bolts , fastners. To attach door, some with Teflon sleeves, some not . Cleaning the spring, levers etc. working smoth and easyyyy. Now got to order some hardware to reattach the door and other parts. Thanks. Big Al




You want to know how to remove the wiper door after you have already removed the wiper door?


____________________________________
 Reply Reply  Quote Reply w/Quote
8/9/13 12:39pm - Reply: 'Re: 72 wiper door operation'
rraider1
Former Member
- Send Private Message


Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152
This is educating explains  how the vacuum system works
 



(created live link-aapple)

 


|UPDATED|8/9/2013 9:39:33 AM (AZT)|/UPDATED|


____________________________________
Bob R
 Reply Reply  Quote Reply w/Quote
8/9/13 1:09pm - Reply: 'Re: 72 wiper door operation'
anips
Standard Member
- Send Private Message


sonoma, CA - USA

Vette(s):
72 LT-1 AC coupe,69 l-36 coupe

Joined: 8/9/2002
Posts: 783
I've mentioned this before but the best way to troubleshoot the Vac. sys. both the wiper and HL. sys. is to go Harbor Freight and buy a electric vac. pump, hook it to the main Vac feed line that comes out of the rear of the intake manifold and plug in the cord, now you will have constant vac to the complete Vac Sys. without starting the car, HL's, wipers, vent doors, heater controls, relays, etc, work all the sys. controls listen for leaks, they are hard to hear with the eng. running, eng will also run better after you fix any hidden vac leaks.............................just checked Harbor Freight those pumps have gotten kinda spendy, better to rent one, Air Conditioning Vac pumps will work.

|UPDATED|8/9/2013 10:09:44 AM (AZT)|/UPDATED|


____________________________________
 Reply Reply  Quote Reply w/Quote
8/9/13 12:41pm - Reply: 'Re: 72 wiper door operation'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

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

Joined: 11/8/2003
Posts: 19449
rraider1 said: This is educating explains  how the vacuum system works


That's a good tutorial there. Note that ya'll can download it in a PDF format if ya want....I would suggest it would be a good idea to have a copy handy in your own tech libraries...Thumbs Up


____________________________________
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"
 Reply Reply  Quote Reply w/Quote
8/9/13 2:34pm - Reply: 'Re: 72 wiper door operation'
rraider1
Former Member
- Send Private Message


Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152
Here Is another good topic on the wiper operation
 
 


____________________________________
Bob R
 Reply Reply  Quote Reply w/Quote
8/16/13 2:26pm - Reply: 'Re: 72 wiper door operation'
apasbigal
Former Member
- Send Private Message


goldens bridge, NY - USA

Vette(s):
1972 T-Top 350 auto, matching numbers,Blue, ac

Joined: 11/3/2003
Posts: 498
Anipseoj. JOE suggested a vacuum pump to do testing . Got one from harbor freight air operated so I can vary the vacuum HOW MUCH VACUUM SHOULD I SUBJECT THE SYSTEM TO ??? Ended up having to drill out buba's broken and striped bolts, installed helicoils and alls well . Repainted and cleaned up the wiper channel and ready to test Thanks, BIg Al

|UPDATED|8/16/2013 11:26:36 AM (AZT)|/UPDATED|


____________________________________

 Reply Reply  Quote Reply w/Quote
8/16/13 5:35pm - Reply: 'Re: 72 wiper door operation'
anips
Standard Member
- Send Private Message


sonoma, CA - USA

Vette(s):
72 LT-1 AC coupe,69 l-36 coupe

Joined: 8/9/2002
Posts: 783
apasbigal said: Anipseoj. JOE suggested a vacuum pump to do testing . Got one from harbor freight air operated so I can vary the vacuum HOW MUCH VACUUM SHOULD I SUBJECT THE SYSTEM TO ??? Ended up having to drill out buba's broken and striped bolts, installed helicoils and alls well . Repainted and cleaned up the wiper channel and ready to test Thanks, BIg Al



depending on what kind of shape your motor is in  it should be puttin out about 15-20+ HG of Vac. , check the instructions but I think the HF air powered Vac pump puts out about 28 HG.



|UPDATED|8/16/2013 2:35:40 PM (AZT)|/UPDATED|


____________________________________
 Reply Reply  Quote Reply w/Quote
8/16/13 6:10pm - Reply: 'Re: 72 wiper door operation'
F4Gary Gold Member
Gold Member
- Send Private Message


Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.

Joined: 8/26/2006
Posts: 862
anips said:
apasbigal said: Anipseoj. JOE suggested a vacuum pump to do testing . Got one from harbor freight air operated so I can vary the vacuum HOW MUCH VACUUM SHOULD I SUBJECT THE SYSTEM TO ??? Ended up having to drill out buba's broken and striped bolts, installed helicoils and alls well . Repainted and cleaned up the wiper channel and ready to test Thanks, BIg Al



depending on what kind of shape your motor is in  it should be puttin out about 15-20+ HG of Vac. , check the instructions but I think the HF air powered Vac pump puts out about 28 HG.






Your LT-1 won't be puttin' out 15 HG of Vac.  Mine pulls about 11.


____________________________________
 Reply Reply  Quote Reply w/Quote
8/17/13 11:44am - Reply: 'Re: 72 wiper door operation'
anips
Standard Member
- Send Private Message


sonoma, CA - USA

Vette(s):
72 LT-1 AC coupe,69 l-36 coupe

Joined: 8/9/2002
Posts: 783
F4Gary said:
anips said:
apasbigal said: Anipseoj. JOE suggested a vacuum pump to do testing . Got one from harbor freight air operated so I can vary the vacuum HOW MUCH VACUUM SHOULD I SUBJECT THE SYSTEM TO ??? Ended up having to drill out buba's broken and striped bolts, installed helicoils and alls well . Repainted and cleaned up the wiper channel and ready to test Thanks, BIg Al



depending on what kind of shape your motor is in  it should be puttin out about 15-20+ HG of Vac. , check the instructions but I think the HF air powered Vac pump puts out about 28 HG.






Your LT-1 won't be puttin' out 15 HG of Vac.  Mine pulls about 11.
 

B.A., how did the pump work, for the sake of everyone I threw in the 15- 20 #, my motor has been bored and the compression raised it idles about 14-16HG if I remember right.


____________________________________
 Reply Reply  Quote Reply w/Quote
 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
 Forums -> C3 Body
(Moderator: Adam Wartell, Norsky, Adams' Apple)
 

 
Official C3 Vette Registry Community:
Home | Forums | Email | Who's Online | Clubs | Events | Member Stats

Other Official C3 Vette Registry Areas:
Members | Research | Shop | My Account | About C3VR
 

Corvette is a registered trademark of the General Motors Corporation(GM) & Chevrolet Motor Division. Vette Registries, LLC is responsible for all site content (except for member submitted content or where otherwise noted) and does not claim or imply that Chevrolet or GM is responsible for Official C3 Vette Registry content. Vette Registries, LLC is independent from GM and is not affiliated with, sponsored or supported by GM.  Copyright/trademark/sales mark infringements are not intended, or implied and are in fact used to support GM, Chevrolet and Corvette

Official C3 Vette Registry content is Copyright 2001-2017, Vette Registries, LLC. Content may not be reused without written consent. All Rights Reserved. NS

Corvette (Vette) Model Years on this site: 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 30