70 wiper door
Thread Starter
Instructor
Joined: Sep 2007
Posts: 244
Likes: 3
From: Long Island
70 wiper door
My 70 wiper door is not coming up fully. If I raise it the balance of the way by hand, it will close fully when I close the switch. Are these known to need lubrication or do you think I have another issue.
Thanks !!
Thanks !!
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Do you have a mighty vac vacuum pump? You can buy one at autozone or any parts place. They are very useful with the amount of vacuum operated stuff on our cars. You could pull the hoses of of the wiper door actuator and apply vacuum to either port and see if you can make the door raise. If the door does raise, you know you have a good wiper door actuator. If it does not, you may have a leaky vacuum line or leaky control valve.
Here is a link that will help troubleshoot some of the parts of the vacuum system. Look for the Vacuum Trouble link on the upper left.
www.corvette-101.com
Here is a link that will help troubleshoot some of the parts of the vacuum system. Look for the Vacuum Trouble link on the upper left.
www.corvette-101.com
Thread Starter
Instructor
Joined: Sep 2007
Posts: 244
Likes: 3
From: Long Island
Do you have a mighty vac vacuum pump? You can buy one at autozone or any parts place. They are very useful with the amount of vacuum operated stuff on our cars. You could pull the hoses of of the wiper door actuator and apply vacuum to either port and see if you can make the door raise. If the door does raise, you know you have a good wiper door actuator. If it does not, you may have a leaky vacuum line or leaky control valve.
Here is a link that will help troubleshoot some of the parts of the vacuum system. Look for the Vacuum Trouble link on the upper left.
www.corvette-101.com
Here is a link that will help troubleshoot some of the parts of the vacuum system. Look for the Vacuum Trouble link on the upper left.
www.corvette-101.com
Thread Starter
Instructor
Joined: Sep 2007
Posts: 244
Likes: 3
From: Long Island
Do you have a mighty vac vacuum pump? You can buy one at autozone or any parts place. They are very useful with the amount of vacuum operated stuff on our cars. You could pull the hoses of of the wiper door actuator and apply vacuum to either port and see if you can make the door raise. If the door does raise, you know you have a good wiper door actuator. If it does not, you may have a leaky vacuum line or leaky control valve.
Here is a link that will help troubleshoot some of the parts of the vacuum system. Look for the Vacuum Trouble link on the upper left.
www.corvette-101.com
Here is a link that will help troubleshoot some of the parts of the vacuum system. Look for the Vacuum Trouble link on the upper left.
www.corvette-101.com
Safety Car
Joined: Aug 2000
Posts: 3,734
Likes: 2
From: Southeastern PA
Sometimes the white vacuum filter splits apart and causes slow operation of the vacuum operated components. Check this filter (may be tucked under your air cleaner or in the open above your manifold) and replace it if cracked or leaking.
Thread Starter
Instructor
Joined: Sep 2007
Posts: 244
Likes: 3
From: Long Island
70454, Thanks for the info. Is there a "formal" name for this part as I am attempting to look it up for potential replacement and can't find it.
Thread Starter
Instructor
Joined: Sep 2007
Posts: 244
Likes: 3
From: Long Island
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
Lubricating the wiper door bushings can sometimes be a help. Or they may be worn out. BE VERY CAREFUL if you do any "work" to the wiper door. The shouldered bolts attaching the door are very easily broken and it's a real pain to repair. Put liberal amounts of liquid penetrant on those bolts and let is set overnight... and repeat a time or two. Then use very little force to back them out. Breaking these bolts is a very common problem and a PITA to fix.
