1954 100mm gas tank, were they wavy or not?

slow36hp · Posted: Mon Sep 27, 2010 5:06 am Post subject:

never had one to look at personally (yet) but all sides upper and lower yet the top pristine is pretty hard to discount.
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RGD · Posted: Mon Sep 27, 2010 10:31 am Post subject:

Bruce I guess you have never seen somebody pissed off changing a flat tire .more than the tire comes in contact with the poor old fuel tank after changing a flat in rain snow or hot sun. After a few years those wheel bolts become one with the drum. Imagine some poor bastard on the side of the road not knowing that the bolt wants to be struck with a hammer before it will spin loose . I have witnessed on more then one occasion tired pissed off guys throwing there jack and tools along with there wheel on or at there luggage compartment ,tire on top of the tank trying to slam the hood with the hood prop still up. Most people that owned early beetles for there first 20 years or so used them as daily drivers to and from work cheap little car that saw the elements .There should be a CSI team put together to track every nick and bruise on these old cars! If the dents bother you fix them ,the amount of man hours over analyzing them could be better spent in the garage

BugMan114 · Posted: Mon Sep 27, 2010 3:55 pm Post subject:

how is the top going to be weaker? when the metal is stretched into shape, that would also mean its a little thinner, so the sides would infact be the weaker point.

And how would pressurizing the tank prove anything? If the waves were caused by vacume, it was over a long period of time, AND the metal is already stretched. do you really expect the metal to just pop into place like nothing ever hppened?

And about the no plugged caps thing, how do we know that the vacume released from these partially plugged caps was enough? maybe when the cap is actually installed, the cap won't vent as effieciently. Someone needs to take a tank, put a partially plugged cap, and a good non plugged cap (a new or NOS cap), and see if you can create a vaccume inside the tank (vacume gun on the fuel outlet at the bottom of the tank). if you can create a vacume, if the vented cap isn't vented enough, you should be able to create a substantial vacume in the tank. and if the cap vent is able to flow air out very easy, this would atleast help to dispell the vacume theroy.
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1971 Std. Beetle w/ 1929 Mercedes Benz Gazelle kit
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1969 Baja Bug
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Sand Rail- FUBAR

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Why the hell do they call it a gland nut. its obviously a big fat bolt!!!

Bruce · Posted: Mon Sep 27, 2010 10:57 pm Post subject:

Bruce · Posted: Mon Sep 27, 2010 11:03 pm Post subject:

Louis · Posted: Tue Sep 28, 2010 2:15 am Post subject:

is this a spelling class?
keep it to the topic please...

i can see the carbs cant pull that much vaccum, its just seem odd to have VW pressing such bad tank.

we cant keep arguing.
need a test.. i cant do it because my tank is already wavy.
i tried to plug my air compressor and blow air in it but it never poped back and i have a 7hp at 155psi...

BugMan114 · Posted: Tue Sep 28, 2010 3:23 pm Post subject:

X2. dis ain't no fukin spellin class, ya dig Wink

AND like i said. the top probrobly isn't warping, because its most likely STRONGER, because it hasn't been stretched like the sides. since it has been stretched, the sides are weaker which may be more prone to buckling under vacUUm (are you happy, i spelled it right), or other stresses, like constant fuel sloshing. but again, it just seems unlikely that VW would let such an obvious defect leave the factory that way.

Perhaps temperature change may have had an effect on the tank. the constant thermal expansion over time (cold winter days, hot summer days, morning/ night, etc.) may have also caused the waves you see. this would actuall make more sense, since the sides are thinner, they were the ones to wave. just another thought.
_________________
1974 Super Beetle: Custom resto in progress
1972 Super Beetle: Daily Driver
1971 Std. Beetle w/ 1929 Mercedes Benz Gazelle kit
1960 Baja Bug
1969 Baja Bug
Sand Rail- Homemade
Sand Rail- FUBAR

Aircooled Airheads

Why the hell do they call it a gland nut. its obviously a big fat bolt!!!

Bruce · Posted: Tue Sep 28, 2010 11:15 pm Post subject:

tisius · Posted: Wed Jul 22, 2015 3:36 am Post subject:

mine's wavy as well.
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txoval · Posted: Wed Jul 22, 2015 7:51 pm Post subject:

I'm with Bruce, my 54 has the exact waves in the front of the tank

If there WAS enough vacuum to warp the tank the engine would never freaking run as no gas would be supplied

Tempie · Posted: Mon Jul 27, 2015 2:11 am Post subject:

I had the tire rubbing I think :

Image may have been reduced in size. Click image to view fullscreen.

Will leave it as it is...
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tisius · Posted: Mon Jul 27, 2015 2:30 am Post subject:

wavy and rubbed, nice! Laughing

I would just scuff it up a bit and then rattle can some black paint over that spot, and call it a day!

I don't think vacuum pressure (if any) could be so strong that it can warp the side of the tank. And even if that was the case, then wouldn't it be odd at the least that all pictured tanks are wavy in the same spots?
I go for VW-factory manufactured waves (hang loose, surf's up! Wink

).
_________________
drive it like you just robbed the bank
you don't have to be crazy to be into VW's, but it sure helps!!
.... if it ain't dutch, it ain't much!

Tempie · Posted: Mon Jul 27, 2015 2:33 am Post subject:

this car is going for a full resto Smile

It is too rusty to drive as is.
Its a 3 fold early 55 standard ragtop

Btw,

My standard, is has a lot of imperfections, no nice pressings, half-ass welds, and yes, factory Smile

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When a deluxe is not enough.... you go standard Smile

Early 55 standard sunroof Smile

Visit the Standard Split and Oval Beetle group!!

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carnut63

What a great thread. I shall revive it with my own March 55 tank.
Clearly wavy on the front and back with about 4 consistent low spots. Other than the pink panther sticker looks like it's never been touched.

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---> Mar 2 1955 Strato Silver Oval <---
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Russ

well my tank is now about 7 years old and still straight
tend to agree with Bruce that it was stamped that way.
either way it was a good old read again:)

I think I'm just excited to see pre 56 cars popping up, I have a soft spot for them Very Happy

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1954 100mm gas tank, were they wavy or not?
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