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'73 911S Sepia Braun
Join Date: Jan 2009
Location: Kleve Germany / Atlanta Georgia
Posts: 175
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Found sacrificial corrosion anodes in 1973 gas tank
I have never seen this in a gas tank but my 1973 has a few loose sacrificial anodes in it.
This is normally used on steel hull boats to prevent corrosion. Has anyone else found this in a Porsche tank? Was this done by Porsche? |
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10-01-2009, 07:17 AM
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Registered
Join Date: Feb 2001
Location: South of the Mason-Dixon Line
Posts: 3,722
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Is your tank from a 1973.5T/CIS? This tank is unqiue only to this model year based on its swirl pot and fuel pickup configuration. Several of the internal components are not metal but a polymer including the baffles/deflector.
Anodes for cathotic protection/electrolysis? I have zincs in my marine diesel heat exchanger and on my prop shaft, but a Porsche fuel tank? The only current relative to the Porsche tank is off the 12v fuel level sender but thats shielded by the cork gasket. I wonder though how the tank is grounded although they have rubberized coatings and rest on a foam gasket. Maybe its the metal retaining fittings that keep it attached in the trunk at four locations. Why would Porsche consider a sacrifial anode in a fuel tank? Maybe someone will chime in with experience here............. Bob 73.5T/CIS |
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10-01-2009, 07:31 AM
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'73 911S Sepia Braun
Join Date: Jan 2009
Location: Kleve Germany / Atlanta Georgia
Posts: 175
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Bob, I have 2 tanks. One is original to my 911S that is being redone based on your older post at a radiator shop. The second tank I have is flawless with no rust inside and the above mentioned anodes. This tank is from a 73 CIS and has an orange colored fuel trap inside. I'm hoping to use the CIS tank since it is so clean.
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10-01-2009, 07:47 AM
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AutoBahned
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pics of the anodes?
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10-01-2009, 08:13 AM
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Friend of Warren
Join Date: Oct 2000
Location: Lincoln, NE
Posts: 16,492
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Could they possibly be some of those "catalyst" pellets sold by the marketers that supposedly increase your gas mileage?
__________________
Kurt V No more Porsches, but a revolving number of motorcycles. |
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10-01-2009, 10:32 AM
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