924Board.org

[sciroccosteve]

Well, it has been raining something fierce in these ol mountains, and my passenger floor is soaked.

I traced the culprit to the battery location....someone years ago already fiber glassed it(ive heard that this is a common thing)

Wondering what you guys think I should do? Should I tear out and replace the fiberglass....
or!
Should I get some of that liquid rubber/rhino liner, and coat the whole deck with it?

replacing with new metal is not an option. I no longer have a TIG.
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1979 924
2000 V6 Passat
"Let the fools have their tar tar sauce."
C. Montgomery Burns

[mikebola]

mine had two holes in it the size of dollar bills when I got it. I cut out all the rust, painted it with rust converter and regular rattlecan black, then riveted in a plate of aluminum. about 6 ounces of spray rubber filled the cracks and made it so it'll last a good long while.
if the fiberglass seems well done and isn't delaminating from itself or the metal, I'd say coat it. but ymmv.
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proud owner of a 1979 924 Sebring Edition with a 931 trans that looks horrible but somehow runs...

[sciroccosteve]

[staticsan]

Check there is, in fact, a drain hole through the firewall, too. Mine had been repurposed for the battery ground cable. I didn't think that was such a great idea and put in another hole for that.

Wade
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'82 British NA - Which I think I've been very lucky with!

[sciroccosteve]

[MikeJinCO]

I do fiberglass work often, just make sure to use an epoxy resin rather than polyester as it tends to delaminate on repair jobs. Polyester is the norm for molding, but is not a good adhesive. The local boat building folks should all have both epoxy and fiberglass. Mine had some rust so I gave it a couple of coats of POR15 that I had on hand and then 4 or 5 coat so Duplicolor Truck bed coating. I just have to figure out a front battery anchor mount as the stud is broken.
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Mike


'67 MG Midget Dp
'71 Ocelot Dsr Kawasaki 1000(under rebuild)

[mikebola]

[joecitizennn]

[Slam]

I second the windshield seal. The adhesive dries out and leaks. The best way to test you battery box is to wait until all is nice and dry and then have an assistant (heh...) pour water into the battery box while you stick your head under the dash. Many leaks can't be seen with the naked eye. (I finally had a chance to use the word 'naked' on a car site...)

I'm a fan of fibreglassing these and have done all our cars.
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'88 944 Auto - may or may not resurrect

[brealytrent]

I have a similar problem:
The battery box was pretty ratty, so I cut out all the bad metal, riveted in a new aluminum piece, then put a few layers of fiberglass on that and painted it. Still leaks? I can't see where either as the AC system is in the way Oh, and then there is the myriad of other leaks, especially coming from the sunroof that doesn't seem to get better no matter how clear the drain lines are.
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1977 Porsche 924 - sold
1980 Porsche 931 - sold
1984 Porsche 928 'S2' Euro - sold
2016 Ford Fiesta ST - sold
2009 Porsche Cayman

[Slam]

Hmmm.. Maybe have a look and see if the drain tubes have come adrift from the nipples on the drains themselves (heh... I got to say nipples too...).

One other thing is to swap out your quarter window seals.
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'88 944 Auto - may or may not resurrect

[brealytrent]

how do you tell if the hose has come off without cutting sheet metal? I know at least three of the lines are good because I can blow air through them to the drain hole in the gutter system. The one I'm not so sure about is over the driver through the a-pillar, but i never have water drip from there.
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1977 Porsche 924 - sold
1980 Porsche 931 - sold
1984 Porsche 928 'S2' Euro - sold
2016 Ford Fiesta ST - sold
2009 Porsche Cayman