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2/10/12 11:48am - Original Message: 'Vacuum Storage Tank - not sure what forum this should be in'
persico Gold Member
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Long Valley, NJ - USA

Vette(s):
1972 454 Coupe, 4 speed, Targa Blue with blue interior, luggage rack

Joined: 3/21/2007
Posts: 253
Hey guys, not sure what forum topic this goes, I thought Engines was the most logical since it involves vacuum supply.  My question is - has anyone had their vacuum storage tank repaired?  Mine form my '72 is in good shape except for a couple of pin hole leaks I detected by connecting to an air hose while the tank was submerged in water.  I tried an epoxy filler (JB Weld) but that didnt work.  I also thought of gas tank sealer but the manufacturers tell me it will probably not dry since the tank openings are so small, and it will be hard to verify the sealer coats the entire interior.  Next option is MIG/TIG welding but the metal is so thin I dont feel I can do it without burning through!.  My last idea was to bring it to a radiator shop to see if they could fix it.  Any ideas appreciated, thanks!

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Mario
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2/10/12 1:57pm - Reply: 'Re: Vacuum Storage Tank - not sure what forum this should be in'
Adams' Apple Lifetime Member
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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

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The problem with repairing the tank is, since it IS so thin, it expands & contracts, so any type of JB Weld/epoxy isn't likely to hold for long. Same thing with welding/brazing...the metal will just contract around the weld, and create a crack there.I have no idea how you could permanently repair the tank, other than replacing it...Ouch

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Joel Adams
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2/10/12 2:22pm - Reply: 'Re: Vacuum Storage Tank - not sure what forum this should be in'
The Rook Lifetime Member
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Pittsburgh, PA - USA

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1979 L-82, 3 spd auto, car was originally Lt. Beige currently painted Sportsman Red, Doeskin leather interior, 103,000 miles......

Joined: 12/4/2002
Posts: 600
Not to be a wise guy, but what about that spray sealer they sell on TV?
 
 
The one where the guy sprays a screen door on a boat bottom and puts it out on a lake.
 
Its called Flex Seal.....worth a shot IMHO
 


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2/10/12 4:06pm - Reply: 'Re: Vacuum Storage Tank - not sure what forum this should be in'
DaveM Lifetime Member
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Flanders, NJ - USA

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1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.

Joined: 1/27/2004
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Is replacing it out of the question? I replaced mine rather than fool around with it.
Dave


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2/10/12 4:15pm - Reply: 'Re: Vacuum Storage Tank - not sure what forum this should be in'
persico Gold Member
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Long Valley, NJ - USA

Vette(s):
1972 454 Coupe, 4 speed, Targa Blue with blue interior, luggage rack

Joined: 3/21/2007
Posts: 253
Is replacing it out of the question? I replaced mine rather than fool around with it.
Dave


Dave,
 
I would love to replace it but the cheapest I've seen these is for $200 used on ebay.  Anyone know of another place to get one?


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Mario
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2/10/12 4:16pm - Reply: 'Re: Vacuum Storage Tank - not sure what forum this should be in'
persico Gold Member
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Long Valley, NJ - USA

Vette(s):
1972 454 Coupe, 4 speed, Targa Blue with blue interior, luggage rack

Joined: 3/21/2007
Posts: 253
In the interim guess I'll try the Flex Seal that The Rook suggested, and yes I did see the commercial, but I wont be floating my car in any lake!

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Mario
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2/10/12 4:41pm - Reply: 'Re: Vacuum Storage Tank - not sure what forum this should be in'
dcherr Gold Member
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Elkhart, IN - USA

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1975 Red T-Top 1972 Red Convertible

Joined: 10/7/2007
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I used JB weld on mine 72 2 years ago and it is still holding. I plasted it first to make it clean then but the JB weld on and left to dry good and primed and painted it before putting it back in the vett.
good luck
Dean


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2/10/12 5:11pm - Reply: 'Re: Vacuum Storage Tank - not sure what forum this should be in'
DaveM Lifetime Member
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Flanders, NJ - USA

Vette(s):
1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.

Joined: 1/27/2004
Posts: 2530
persico said: Is replacing it out of the question? I replaced mine rather than fool around with it.
Dave


Dave,
 
I would love to replace it but the cheapest I've seen these is for $200 used on ebay.  Anyone know of another place to get one?


CHECK THIS OUT.....http://www.volvette.com/HE76H.html
Dave

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Dave's '82


   
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2/10/12 7:50pm - Reply: 'Re: Vacuum Storage Tank - not sure what forum this should be in'
Jaws79 Lifetime Member
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Sykesville, MD - USA

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1979 Corvette Coupe Corvette Light Blue Midnight Blue interior Mirrored Glass T-tops

Joined: 4/27/2008
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That sounds like the ticket, Dave! You couldn't fix it cheaper then that!
 
Barry
 
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2/11/12 1:00pm - Reply: 'Re: Vacuum Storage Tank - not sure what forum this should be in'
Adams' Apple Lifetime Member
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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
Something like that might work in a pinch. The early cars('68-'72) had a fairly large, square-ish vac tank under the driver side fender. They needed the larger tank with the vac wiper door and headlights, plus, a lot of the engines in them days din't produce a lot of vacuum at idle anyway, so the larger reservoir was welcome. Starting with the '73 model, they used the front "crossmember" as a vac storage tank for several years....pretty neat idea. Thumbs Up

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Joel Adams
C3VR Lifetime Member #56    
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(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"
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2/11/12 1:34pm - Reply: 'Re: Vacuum Storage Tank - not sure what forum this should be in'
dcherr Gold Member
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Elkhart, IN - USA

Vette(s):
1975 Red T-Top 1972 Red Convertible

Joined: 10/7/2007
Posts: 208
This is what my tank looked like when fixed and repainted

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2/11/12 11:34pm - Reply: 'Re: Vacuum Storage Tank - not sure what forum this should be in'
tb2k82ce Lifetime Member
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Lemon Grove, CA - USA

Vette(s):
1982 C3 Collectors Edition 44000 miles, sat in the sun most of it's life, My wife purchased it for me for fathers day in 2007 from her girl friend that had it for 19 years. It is on the road again. I'm retired but it is now my daily driver.

Joined: 10/17/2007
Posts: 2007
A friend of mine used JBWeld and it worked for him.  He said getting a clean buffed surface was the ticket.

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2/13/12 5:21pm - Reply: 'Re: Vacuum Storage Tank - not sure what forum this should be in'
persico Gold Member
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Long Valley, NJ - USA

Vette(s):
1972 454 Coupe, 4 speed, Targa Blue with blue interior, luggage rack

Joined: 3/21/2007
Posts: 253
Thanks for all the replies!  I did take the tank down to bare metal in a blasting cabinet before trying the JB Weld so not sure why it didnt hold for me (Dean couldnt see your picture don't know if it was the post or me!)  I am going to go to my local radiator repair guy to see if he can solder it, other than that I guess I'll go to the Campbell Soup can (or is it Progresso?)

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Mario
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