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Dead Parrot · 05-13-2019, 02:04 PM

The plastic thing is the vent. My 75 has the same setup. You use the 1 wire solenoid 3 pipe valve to switch between tanks. Probably want to replace the dash switch if your gas gauge has problems, especially the go to 3 o'clock issue.

The vent should have a hat like thing over the end. Looks like yours may have broke and settled. Orange ring in 1st pic.

Ask for a differential vent at the parts store. Should be the same thing.

05-13-2019, 02:04 PM	#4
Dead Parrot Registered User Join Date: Aug 2012 Location: Oklahoma City, OK Posts: 2,477	Re: bad fuel delivery 77 c20 dual tanks The plastic thing is the vent. My 75 has the same setup. You use the 1 wire solenoid 3 pipe valve to switch between tanks. Probably want to replace the dash switch if your gas gauge has problems, especially the go to 3 o'clock issue. The vent should have a hat like thing over the end. Looks like yours may have broke and settled. Orange ring in 1st pic. Ask for a differential vent at the parts store. Should be the same thing.