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Plastic tank in rear panel mystery (to me)

Joined
Aug 25, 2017
Messages
2
Loc.
Morro Bay
Hi all. Just starting to restore my first car and will no doubt have lots of questions as I proceed. First one is about a plastic bottle in the rear quarter panel behind the driver's side roll bar. It's behind a metal cover plate and appears to be a 1/2 gallon overflow for the fuel system. I'm asking because sometime back when the car was near new (before me), a fire extinguisher was mounted on the cover plate and three holes drilled for screws, two of which pierced the tank. I'll know more once I get the car more apart, but I couldn't find anything on this bottle in the original manual. Anybody know what it is? Thanks

John
 

1971lubr

Full Member
Joined
Mar 23, 2014
Messages
534
Loc.
Cape Coral, FL
You can ditch that and the charcoal canister on the passenger side frame if you mount a new canister high on the firewall in the engine bay for vapor recovery..... Unless you are going for all original.
 

DirtDonk

Contributor
Bronco Guru
Joined
Nov 3, 2003
Messages
49,026
Yes. What they said.
Officially it's a "condensing tank" that keeps liquid gas from reaching the low-mounted charcoal canister on the passenger side frame. Started sometime in '70, the evap system is a good thing. In '76 Ford started using what is the more modern and maybe even still in use plastic canister mounted up on the firewall like lubr was saying.

I've even mounted them up in the very front of the passenger front wheel well behind a dual shock hoop. It's almost as high as the firewall mount (within an inch or so if I remember) and virtually invisible to the casual looky loo.
You still get the benefit of the evaporative control setup, but without the potential (or in your case, guaranteed!) fumes in the cabin.

Have fun. And welcome to classicbroncos too!

Paul
 

LOVNBRONCOS

Full Member
Joined
Mar 6, 2012
Messages
462
Loc.
Tucson, Az
Took vapor canister and charcoal canister off, Bronco always smelled like gas, put it all back on no gas smell. Depending what state your in you may need it for emissions,
another reason I put it back on.
 

1971lubr

Full Member
Joined
Mar 23, 2014
Messages
534
Loc.
Cape Coral, FL
Vapor canisters are all over the junkyards from 90's Ford trucks. Cost you $10 bucks plus some hose to replace the condensation tank and vapor tank for a cleaner system that works really well.
 
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