question about wiper vacuum system
Thread Starter
Safety Car
Joined: Jun 2005
Posts: 3,775
Likes: 4
question about wiper vacuum system
well, ive found my leak and my headlights go up and down now, but im wondering if something is missing.
thats the vacuum relay in the nose of the car. the leak was comeing from where the red plug is now. was there supposed to be another hose or something that goes there.
thats the vacuum relay in the nose of the car. the leak was comeing from where the red plug is now. was there supposed to be another hose or something that goes there.
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
There should be a piece of sponge there.If you have a leak there the seals are leaking.You can replace or try to rebuild the relay valve.The sponge is a filter for the momentary leak it takes to dump the vacuum from the actuator.
Instructor
Joined: Aug 2004
Posts: 142
Likes: 1
From: Minnesota
Here's a thread on rebuilding the relay: http://forums.corvetteforum.com/show....php?t=1728713
I did this same thing with a couple differences: I cut the ring holding the two halves together and soldered it back together at the end. Had to be careful not to melt the diaphram (quick solder then cool in water). I used a standard Oring size I found at the hardware store, cut out some thickness with a razor on the inside of the Oring to make it thinner, and put it around the outside of each end of the plunger, so the Oring itself sealed against the inside of the housing.
Good luck!
I did this same thing with a couple differences: I cut the ring holding the two halves together and soldered it back together at the end. Had to be careful not to melt the diaphram (quick solder then cool in water). I used a standard Oring size I found at the hardware store, cut out some thickness with a razor on the inside of the Oring to make it thinner, and put it around the outside of each end of the plunger, so the Oring itself sealed against the inside of the housing.
Good luck!
Le Mans Master
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
You can buy a imported replacement for 40 bucks, and if you're lucky, it will work. I sent 2 back before I got one that didn't leak. I think GM stopped making them and if you can find a GM part they cost over 100 bucks.
Thread Starter
Safety Car
Joined: Jun 2005
Posts: 3,775
Likes: 4
i think ive been in the sun too long.... how the hell did i ever think wiper = head lights....
anyways, this sounds like itll probably be a winter project. im just happy to have 2 working headlight doors again.
anyways, this sounds like itll probably be a winter project. im just happy to have 2 working headlight doors again.
