1973 Oil Tank Questions

[frankc]

I know that the '73 911s had a one year only oil tank (911.107.006.11) that is somewhat a hybrid of the '71 & '74 tanks (copper tank with separate filter console similar to '71, clamp-on S-hose, oil filter size & fixed filler tube from '74), but I have seen many suppliers selling the '74+ style stainless steel tank for '73 - '89 cars. Plus, I have seen '74 style tanks in some '73s.

So I have two questions:

1) Were some late build '73s equipped with the '74 style tank? That is, was the '74 style tank ever "correct" for a '73?

2) Is the '74 style tank is a direct fit replacement (appears to be)?

The answer to these questions will help guide me on my decision to use the extra '74 tank I have, or try to find an original '73 for my '73 project.

Thanks,
Frank

[gled49]

The 74 tank was never installed in 73 cars. The tank is longer/lower by about an inch, it has an extra Qt of capacity. The rear 1/4 valance on the 74's is lower to cover the tank or vice versa, they install a larger tank because it would be covered by the valance. The later tank will show just a little below the 73 bumper. Gled

[Marek]

FYI

I got new REPRO´s on stock at 550 EURO + postage

Drop me a email if you are interested at early911parts@gmail.com

Regards

Marek

[frankc]

The 74 tank was never installed in 73 cars. The tank is longer/lower by about an inch, it has an extra Qt of capacity. The rear 1/4 valance on the 74's is lower to cover the tank or vice versa, they install a larger tank because it would be covered by the valance. The later tank will show just a little below the 73 bumper.

Gled,
Thanks for pointing out the difference in the shape/capacity. I saw that the '73 tanks did not have the stamping for the two lines near the tank inlet, but I never noticed that it was a little shorter at the bottom as well.

Can the copper tanks be repaired easily? Many I've seen have corrosion.

I got new REPRO´s on stock at 550 EURO + postage

Marek,
The tank in your photo appears to be a '74+ tank. Can you confirm?

-Frank

[Marek]

HI Frank

it should be a 73 one year only , But I do also got the 74 + with the screw on cap ( see pic )

Same price :-)

Marek

[RSTarga]

The 73 tank has the one year only thermostat at the bottom of the tank. Different to the 74 where the thermostat is mounted forward of the rear wheel.

[frankc]

it should be a 73 one year only , But I do also got the 74 + with the screw on cap ( see pic )

Marek,

What I believe is a '73 tank is shown in the photo below. Notice that the oil filter console is separate instead of being integrated into the tank as with the '74+.


Also, as Gled pointed out, the '73 tank is a bit shorter on the bottom. Compare the bottom portion of the tank in the photo below with the one in your photo and can see the difference I am referring to.

[ESully]

HI Frank

it should be a 73 one year only , But I do also got the 74 + with the screw on cap ( see pic )

Same price :-)

Marek

Marek,
Your pictured tank would seem to be Sportmatic with the extra fittings, but I don't see a screw cap type in the PET. The cap for the '73 and later style are the same part number.
"June 29,1973 Oil filter replaced by filter originally designed for G model. July 10, 1973 Last day of production."
It would seem most of the '73 cars had the 911 107 006 11 tank with separate console. I don't know if there is a difference between my tank and the '74 or not. It was original to my car. When I bought the car from PO, he let me know he did little to no work on the car, and I have seen a few late '73.5 with same tank. It also does not hang below the fender.