67S fuel tank

[tomkirkcis]

I am getting my 67S soft window back on the road after a few year hiatus. One of the reasons I parked it was I was tired of clogged idle jets. The tank has been rust treated in the past. I scoped my fuel tank and there is some encapsulated rust particles that are breaking out. It is clear to me at some point I will need to slit the tank at the seam and sand blast the tank to properly restore it. I have a few years before I will have time to get to that project so I have decided to buy a new tank to run until the original tank is restored.

Given the fitment year ranges claimed, it is clear the available tanks are compromises and not necessarily year specific to exactly replace my 67 tank. Does anyone have advise as to which of the available repros would fit my 67 best and look not too out of place or require any modification

Thanks

Tom

[moito]

i only know of one company doing fuel tanks for 911...DANSK

[Rick Cabell]

I have had good luck on using the several "inside coatings" that are available for tanks worse than that. It a messy process that is not fun, but if you have time and patience you can get good results. Coincidentally the last tank I did was a 67 SW 5 years ago and no problems. If your tank is in good condition other than the inside it is better to preserve what you have. The new production is not exactly like what you have now.

[tomkirkcis]

Rick
The tank has been treated in the past. I do not remember which product was used but it appears silverish. I think it looks better than it is. I am thinking each of those bumps is a coated rust glob that is only being held in place by the coating. That is one of the reasons I think it is time to sand blast the rust and old sealer off to a bare metal before recoating. I have every intention of putting the original tank back, but just do not have the time to deal with it now.

I am seeing new tanks shipped for under $300 . If Moito is correct that the only maker is Dansk then I buy the least expensive one available and, use it for a couple years while I get my act together and fix the original tank properly.

Thank you

Tom

[tfiv]

I agree with Rick that the new tank will always look - well, like a replacement tank. That said if this is a car you are keeping I'd replace it. Coatings, radiator shop treatments etc. are just not a final solution. Doesn't take a very large piece of stuff to plug an idle jet.

[gulf908]

Tom

as usual it depends if you want to drive the car or have it as a show only car
for a driver you should really consider a new tank
Do Porsche have these tanks in their current Classic parts catalogue ?
if you rely on internal repairs to correct later potential problems,then you will be stranded sooner or later.
I had one 63 and one 80 litre tanks that had the repairs done yet they both went bad fortunately at minimum inconvenience
get a new one and a good quality inline filter for a driver

HTH
Dennis

[Frank Beck]

Interesting thread.

For starters, the new Dansk tank has the incorrect size breather pipe for an early car. There are other differences as well.
I understand it's a challenge to find a tank that's not corroded inside but given the fact that a fuel tank is such an important part of these cars I can't imagine going with aftermarket.

In regard to "liners": With all due respect Rick, that goo is a mess and eventually does solidify and deteriorate. Far and away best to find a nice, dry donor tank and have it restored.


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