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| | | | Joined: Jun 2011 Posts: 59 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2011 Posts: 59 | As some of you may know Ive had a problem with th fuel sender in my 54 gmc. I got that taken care of with the new install of a VDO fuel sender that works hand in hand with VDO fuel gauge. The new sender didnt have the port for the fuel line. How would i go about converting it into a gravity feed fuel system or what other option do I have?? | | | | | Joined: Jun 2011 Posts: 59 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2011 Posts: 59 | Can I add an inline electric fuel pump powered off of the ign so it would shut when the truck shuts? Mechanical pump is still in working condition
Last edited by 54GCPGMC; 08/09/2012 6:42 PM.
| | | | | Joined: Jul 2011 Posts: 21 'Bolter | | 'Bolter Joined: Jul 2011 Posts: 21 | 54GC, you would need to add a relay that gets power when the key is on, not necessarily from the ignition. the other two connectors -one comes directly from the battery the other goes to the elec fuel pump. Should be a picture on the new one.
Relay avail,Aotozone ,Orielly,etc
edit-if your system is 12 VDC
Last edited by chuck2213; 08/09/2012 7:08 PM.
old guy with old trucks
| | | | | Joined: Jun 2011 Posts: 59 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2011 Posts: 59 | would this be a better option then running it by gravity? | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | an electric pump is an option, but you could also find an earlier tank with the bottom outlet .... a bottom outlet tank doesn't really run by gravity, the mechanical pump has suction, that's why the top outlets work as well .... how is it working now if the sender doesn't have the outlet fitting?
Bill | | | | | Joined: Jun 2011 Posts: 59 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2011 Posts: 59 | its not working right now. could i drill a hole on top and run a line in the tank? similar to previous sender? | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | should work if you use the tube and filter sock from the original and can seal it properly so you don't have fumes in the cab .... it needs to accurately reach the bottom of the tank
Bill | | | | | Joined: Jun 2011 Posts: 59 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2011 Posts: 59 | did what you said works great so far. thanks | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | Can you modify the new sender to include the fuel suction line?
If not I'd look for a sender that incorporates the suction line as it was stock.
As another option you can modify your tank to have a suction tube or drain wherever you please.
The fuel sender system I've used many times looks like a 5 gallon can of fuel, it goes in the bed. When the tank is low on fuel the engine makes a distinct sputtering sound, at that point you cut the ignition and pull over preferably on the left side of a hill such that the filler neck is high, makes it easier to pour the fresh fuel in without a funnel....
Grigg | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | I have a cheap fuel sender, hardware stores give away yard sticks, 1" = 2.5 gal.
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Jun 2011 Posts: 59 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2011 Posts: 59 | | | |
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