stheodore10 Posted June 24, 2013 Report Share Posted June 24, 2013 I'm now the proud owner of a 1973 short bed 620 :) now for the fix ups... the dude before me removed the fuel tank for some reason and I have no idea how to hook it back up... I found the schematics in the book and it says there's 2 vent hoses that have to be hooked up to something I can't remember the name of but it doesn't tell me where its located... so as of now I have no idea how to hook it back up, any help would be much appreciated Quote Link to comment
datsunaholic Posted June 24, 2013 Report Share Posted June 24, 2013 Vapor tank? It's in the fenderwell above the passenger side rear tire. There are also lines running to the evaporative system, that was hooked up to the stock air cleaner via a valve on the driver's side inner fender. Quote Link to comment
stheodore10 Posted June 24, 2013 Author Report Share Posted June 24, 2013 So both valves are on the rear? And any other hoses I should know about? Haha Quote Link to comment
laotsu Posted June 24, 2013 Report Share Posted June 24, 2013 I'm sure NJ is less stringent aboot smog than CA and in CA you don't really need to use the evap system. You could just plug those lines. Quote Link to comment
datsunaholic Posted June 24, 2013 Report Share Posted June 24, 2013 The evap system is the tank vent... venting is necessary. You can bypass the vapor tank, but just capping the lines is a bad idea. Quote Link to comment
laotsu Posted June 24, 2013 Report Share Posted June 24, 2013 The evap system is the tank vent... venting is necessary. You can bypass the vapor tank, but just capping the lines is a bad idea. true enough Quote Link to comment
Kirden Posted June 24, 2013 Report Share Posted June 24, 2013 I have a 74 (has tank mounted to the bed) and we bypassed the vapor tank. The bottom most port was hooked up to the line going to the fuel pump. The port near the middle of the tank was hooked to the line coming from the top of the filler neck, and the rear most port at the top of the tank was hooked to the evap line. So far there haven't been any problems. Edit: The evap line is the hardline on the rail that runs beside the tank. It runs along side the brake line and ends at the rear of the tank. The best way to notice it is it hooks up above the frame with the connection facing back towards the cab. Quote Link to comment
stheodore10 Posted June 24, 2013 Author Report Share Posted June 24, 2013 You guys are so helpful... I'm not worries about emissions too much, more so just getting the fuel to the engine but thank you so much very much appreciated Quote Link to comment
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