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73-87 Chevy _ GMC Trucks => Fuel Systems and Drivability => Topic started by: Stewart G Griffin on December 24, 2018, 10:51:19 pm

Title: Return line hose size?
Post by: Stewart G Griffin on December 24, 2018, 10:51:19 pm

Would anyone happen to know what size the return hose line is?

NOT the actual metal line running back to the tank, but the rubber hose (from the mechanical pump) that CONNECTS to the metal line.

i am trying to connect the fuel pressure regulator's return output to the existing return metal line.


Thanks.

Title: Re: Return line hose size?
Post by: 75gmck25 on December 25, 2018, 01:32:05 pm

Stock size for return line is 1/4".
Fuel feed - 3/8"
Vent - 5/16"

Bruce

Title: Re: Return line hose size?
Post by: Stewart G Griffin on January 08, 2019, 06:43:55 pm

thanks