Kidster71

Thanks jd71 for the write up and the URL and thank you DC for the picture. It’s brilliant.

I’ve been working on my 1971 with a new ZZ6 EFI. I bought a Tanks inc. tank for the baffle and the internal fuel pump and the kit came with the aluminum roll over valve. Because the Tanks Inc. tank doesn’t have the spot welded bracket for the factory separator valve at the side of the tank, I was trying to figure out what way to go.

I thought of epoxying the factory separator valve to the side of the tank and reusing it with the charcoal canister.

I thought of just using the Tanks inc. roll over valve mounted at a high point but don’t want the potential fumes in the garage especially trapped up inside the rear deck.

Removing the screen cap of the Tanks Inc. roll over valve and direct plumbing it reusing my charcoal canister is brilliant.

Thank you,
Richard

DC3

I now have about 400 miles on the new engine and can report that so far the rollover valve as I installed it appears to be working. No gas smell in the garage, no gas in the charcoal canister and I no longer have to worry about the separator valve failing.

DC

mongoose87

Can you give some more details where you mounted this aftermarket valve?
It's kind of hard to tell from your picture.
Is that in the engine compartment by the carbon canister, or back by the fuel tank?

If back by the tank, I thought this valve still needs some height above the filler neck, so wouldn't anywhere back there be problematic?

DC3

It's in the back. That's the drivers side frame rail at the bottom of the pic. You can see the ground plane for the antenna in the upper left. I mounted the valve forward of the tank near the rear bulkhead as high as I could. It's actually above the top of the tank but is not above the filler neck. The vent leaves at the top of the tank with my new setup so as long as I don't overfill the tank to where the fuel level is above the bottom of the filler neck, it's fine.

DC