924Board.org

kidporsche · Posted: Wed Jul 09, 2003 10:16 pm Post subject: Fuel tanks

I'm having a custom tank made for a project I have going, but have a problem getting someone to weld it out of aluminium without too much porosity. I have heard you can get sealants to put in tanks, can anyone recommend a product? Can you describe the process of sealing the tank?

Also, how big a gap can these fill? Someone suggested that I have the tank rivited and then sealed, but I'd be surprised if the available sealants would be suitable, does anyone know if this would work?

Thanks in advance,
Chris
_________________
Chris
1981 924 - RoW (Australian) spec

78 924 N/a · Joined: 20 Mar 2003 Posts: 769 Location: Pacific N.W.

Aluminum tanks will need to be welded. Easy for any welder familiar with aluminum.

_________________
1978 924 n/a

MunkPuppy · Posted: Thu Jul 10, 2003 4:06 am Post subject:

Back when I still thought that British cars were really cool (rebuilding a 68 MGB-GT fixed that notion), I was reading through a Moss Motors catalogue, and I remember seeing a tank etching kit which was used to get the crud out of old tanks and then reseal them. I would think the sealant to be available seperately... might want to try your local auto parts shop like NAPA. They may have something for you.
_________________
'80 931 FOR SALE

"It's a shame that stupidity isn't painful"
-Anton Szandor LaVey

CMXXXI · Joined: 05 Nov 2002 Posts: 1939 Location: Vicksburg, MS

A couple of folks here have mentioned some sealant product they got originally for motorcycle tanks, but either did use it, or intended to use it on their 924 tanks. Do an archive search, it should turn up the relavent threads.
_________________
'79 Eurospec 931

78porsche924 · Posted: Thu Jul 10, 2003 4:33 am Post subject:

Talk to Joes924racer(sp?). He had his tank sealed with i think he said creem sealer or something. send him a pm.
_________________
90 944 S2
78 924 NA <---now sold and killed by new owner
snailshell trans
Bae turbo kit
to check out my 944 S2 http://www.cardomain.com/member_pages/view_page.pl?page_id=388139

kaffine · Joined: 13 Jun 2003 Posts: 644 Location: Las Vegas

The Eastwood company sells a gas tank sealer. I've never used it though.

http://www.eastwoodcompany.com/

martiner1 · Joined: 23 Feb 2003 Posts: 14

Try:
http://www.por15.com/subcat.asp?id=42
Don't know about this stuff, but their POR-15 paint is great.

Doodle · Posted: Thu Jul 10, 2003 10:53 am Post subject:

You might want to check your local radiator shop. Most will also do fuel tanks. Aluminum for sure. It's a plastic sealant which they apply. Basically pour it in and swish it around. Beware not to plug up any feed lines. If you take the tank to them it's usually very reasonable. s/b under a hundred dollars and they'll guarantee it. They are most likely to be equipped to do a pressure test for leaks on something you would have made up. Try a motorcycle shop for aluminum welding. They're very familiar with aluminum and if not equipped themselves they'll be able to refer you.
_________________
Doodle
Pre 77.5 Mars Red