73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: Senck243 on October 03, 2011, 10:56:09 am

Title: Which sending unit.
Post by: Senck243 on October 03, 2011, 10:56:09 am

I have an 84 k10 with a 305. Took the bed and both fuel tanks off to coat the frame, new brake and fuel lines. The saddles were shot so I got used ones but I am only putting one tank back on. I dont need both and its more money I dont have. The oe sending units had 3 outlets so doing a single tank do I need 2 or 3. What are each one for? Thanks

Title: Re: Which sending unit.
Post by: Captkaos on October 03, 2011, 11:00:25 am

Supply, return and Vent.  Getting rid of dual tanks has nothing to do with the sending unit.

Title: Re: Which sending unit.
Post by: Senck243 on October 03, 2011, 11:30:53 am

Thanks. Vent just goes out of the tank and stops right?

Title: Re: Which sending unit.
Post by: firefighter on October 03, 2011, 01:24:40 pm

Quote from: Senck243 on October 03, 2011, 11:30:53 am

Thanks. Vent just goes out of the tank and stops right?

My vent was run (via a rubber fuel line hose) toward the back of the bed with one of those plastic vent caps on it.
That keeps any gas vapors toward the back of the truck and away from occupants.

Title: Re: Which sending unit.
Post by: Senck243 on October 03, 2011, 01:25:50 pm

Thanks firefighter

Title: Re: Which sending unit.
Post by: DnStClr on October 09, 2011, 04:11:30 pm

Actually, if it's done properly, the vent line will run up to the vapor cannister (on the driver's side under the hood.) That's the reason for having the cannister.