vacuum canister question.....
Thread Starter
Drifting
Joined: Oct 2008
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From: wichita kansas
vacuum canister question.....
i'm restoring 68' coupe, and was just getting ready to clean up the vacuum canister and mount it...it isn't rusted or beat up, but doesn't hold vacuum??? must have a bad seam or something...anyone else run into this, can they be repaired? thanks, Rick
Melting Slicks
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From: Palatine, Peoples Republic of Illinois
St. Jude Donor '09-'10-'11-12-'13-'14-'15-'16-'17-‘18
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There's a diaphragm in the vacuum canister? I thought it was just a big empty can to store vacuum pressure with some connecters on the side.
Thread Starter
Drifting
Joined: Oct 2008
Posts: 1,369
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From: wichita kansas
uhhhhhhhhh, i didn't know they had a diaphragm...that may be my problem, the canister looks great, .......but if there is a bladder or some type of diaphragm inside, that's probably my problem, it doesn't hold vacuum now...(simple suck the air out of it and block both holes test)
can the diaphragm be repaired or am i S.O.O.L. ?
can the diaphragm be repaired or am i S.O.O.L. ?
Melting Slicks
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From: Palatine, Peoples Republic of Illinois
St. Jude Donor '09-'10-'11-12-'13-'14-'15-'16-'17-‘18
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Having a diaphragm in the canister makes no sense. Try pressurizing the canister and see where the air is leaking (if it is). That's your leak. Solder or epoxy should fix it.
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Melting Slicks
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From: Palatine, Peoples Republic of Illinois
St. Jude Donor '09-'10-'11-12-'13-'14-'15-'16-'17-‘18
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The actuator and the canister are 2 different things. The canister is just the big can that accumulates the vacuum and the actuator has the diaphragms and rods to open and close the headlights and wiper covers.
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Melting Slicks
Joined: Jun 2005
Posts: 2,239
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From: Palatine, Peoples Republic of Illinois
St. Jude Donor '09-'10-'11-12-'13-'14-'15-'16-'17-‘18
NCM Sinkhole Donor
Melting Slicks
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From: Palatine, Peoples Republic of Illinois
St. Jude Donor '09-'10-'11-12-'13-'14-'15-'16-'17-‘18
NCM Sinkhole Donor
We're using different terms for the same parts. Maybe the OP can tell us if he means the hollow vacuum retaining container under the driver's side fender or the wiper actuator on the passenger's side.
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Your first link is for 80-82 vacuum reserve tank; not an actuator.
You second link is for a vacuum relay (headlight or wiper door); also not an actuator.
I thought the OP was working with his wiper door actuator since they are commonly called "cannisters".
If he means vacuum reserve tank on the rear of the left fender skirt, then you are correct - nothing in those except empty space to store vacuum.
RAZMAN: which is it? Actuator or reserve tank?
You second link is for a vacuum relay (headlight or wiper door); also not an actuator.
I thought the OP was working with his wiper door actuator since they are commonly called "cannisters".
If he means vacuum reserve tank on the rear of the left fender skirt, then you are correct - nothing in those except empty space to store vacuum.
RAZMAN: which is it? Actuator or reserve tank?
Team Owner
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From: Westminster Maryland
Hi r,
Yes they can be repaired.
It's a good thing too since they're not being reproduced so used ones have gotten pricey.
I'd first determine where the leak is by pressurizing the tank slightly. The position and size of the leak should help determine the method of repair.
Good Luck!
Regards,
Alan
Yes they can be repaired.
It's a good thing too since they're not being reproduced so used ones have gotten pricey.
I'd first determine where the leak is by pressurizing the tank slightly. The position and size of the leak should help determine the method of repair.
Good Luck!
Regards,
Alan
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From: Crossville TN
If you find a leak, it's easy to repair. Since it holds 'vacuum' (rather than pressure), you can patch it on the outside. 
JB Weld putty stick epoxy will do a great job....after you use some sandpaper to get down to a 'fresh' surface to stick it to. Re-paint with semi-flat or satin black paint when done.
JB Weld putty stick epoxy will do a great job....after you use some sandpaper to get down to a 'fresh' surface to stick it to. Re-paint with semi-flat or satin black paint when done.