JCD 36 #1 Posted July 23 First off I apologize for not being an electrical guy but I need some step by step help for dummies. I disconnected my fuel line as I was having some problems starting my 312-8, thought it might be an old hose but the hose looks and feels new so I reconnected it and now I can't get my tractor to start at all. I think the fuel pump may be the problem, I'd like to change it out for an electrical one but don't know anything about them, what pump should I get (I'd prefer just to buy one from an auto store and not wait on shipping) and how do I hook up the electronics to turn the pump on when the key is in the run position and off when the key is off. Thanks, Jim 2 Share this post Link to post Share on other sites
ebinmaine 66,311 #2 Posted July 23 @squonk has a number he can recommend for Napa. I've only hooked up one and I put it to the light circuit on purpose. That way you can't forget it on. Here's a thread with some useful information about all types of fuel pumps. 4 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,878 #3 Posted July 23 Need to know what engine model/spec number you have or tractor model number if the engine is original to the tractor. Some have AC power to the lights Some have DC power to the lights Some have battery ignition Some have magneto ignition. 6 Share this post Link to post Share on other sites
squonk 40,662 #4 Posted July 23 Facet low pressure pump. Carbole or Mr. Gasket are the exact same pump. Napa # is 610-1051 6 Share this post Link to post Share on other sites
lynnmor 7,218 #5 Posted July 23 You might want to take the hose off the carb and crank the engine to see if there is no fuel flow before getting a new pump. 5 Share this post Link to post Share on other sites
Goldnboy 858 #6 Posted July 23 I recommend the faucett 40177 electric fuel pump, very low psi usa made and not plastic. 4 Share this post Link to post Share on other sites
ebinmaine 66,311 #7 Posted July 23 1 hour ago, gwest_ca said: DC power to the lights Learn something new everyday! 2 Share this post Link to post Share on other sites
pfrederi 17,491 #8 Posted July 23 I wire mine to the I terminal on Battery Ignition units . 2 Share this post Link to post Share on other sites
Handy Don 11,820 #9 Posted July 23 (edited) 25 minutes ago, ebinmaine said: Learn something new everyday! S/G or else stator with regulator or diode -- DC Stator without diode or regulator -- AC Edited July 23 by Handy Don 3 1 Share this post Link to post Share on other sites
ebinmaine 66,311 #10 Posted July 23 4 minutes ago, Handy Don said: S/G or stator with regulator or diode -- DC Stator without diode or regulator -- AC Yep yep 10-4. Now that I think about it the Workhorse we built would have originally been an AC system but all of that was modified or gone before we got it. 1 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,878 #11 Posted July 23 4 hours ago, gwest_ca said: Need to know what engine model/spec number you have or tractor model number if the engine is original to the tractor. Some have AC power to the lights Some have DC power to the lights Some have battery ignition Some have magneto ignition. Missed one Magneto ignition using a battery type of ignition switch plus a kill relay to control the magneto ignition Careful consideration required to connect an electric fuel pump.. If in doubt ask questions. 2 Share this post Link to post Share on other sites
JCD 36 #12 Posted July 23 Thank you guys even though I could only follow a portion of what was said. I finally got my 312-8 to run so the fuel pump isn't shot but I still wonder if its weak. I'll keep reading and probably try to switch it over to an electric one soon. Thanks, Jim 4 Share this post Link to post Share on other sites
squonk 40,662 #13 Posted July 23 13 minutes ago, JCD said: Thank you guys even though I could only follow a portion of what was said. I finally got my 312-8 to run so the fuel pump isn't shot but I still wonder if its weak. I'll keep reading and probably try to switch it over to an electric one soon. Thanks, Jim Jim, here are a couple of threads I did when I installed an electric pump on my C-160. 2 1 Share this post Link to post Share on other sites
Mike in NC 338 #14 Posted July 23 I installed an electric fuel pump on my Bronco 14 several years ago. I wired mine up to a toggle switch that runs a relay to power the fuel pump. I used the Mr. Gasket 2-3 PSI pump. 1 Share this post Link to post Share on other sites
peter lena 8,412 #15 Posted July 24 @JCD personally like the CARBOL electric pumps , also put in a single LED green bulb in the dash to verify it is on / off , you didn't mention cleaning tank or , possible carb fuel bowl packed with debris , very easy to do . between debris in tank , and fuel hose break down , the carb issues can be a regular thing . also have 2 fuel filters on my horses , 1 large filter close to tank , another small one , close to carb . my pump light comes on with key switch start , pete 1 Share this post Link to post Share on other sites
squonk 40,662 #17 Posted July 25 Carbole, Mr.Gasket, Facet, they are all the exact same pump with a different brand name attached. 2 Share this post Link to post Share on other sites
953 nut 54,155 #18 Posted July 25 On 7/23/2024 at 4:33 PM, JCD said: Thank you guys even though I could only follow a portion of what was said. I finally got my 312-8 to run so the fuel pump isn't shot but I still wonder if its weak. I'll keep reading and probably try to switch it over to an electric one soon. Thanks, Jim The hour meter on your 312 has fuse protection and is only powered when the key is on so that is a good source of electrical power for the fuel pump. The pump should be located lower than the fuel tank so it has a positive suction head pressure and doesn't have to suck the fuel. You may want to go ahead and buy the pump along with new hose, clamps and a filter so you can do the job at your convenience rather than when the mechanical pump decides to let you down. 2 1 Share this post Link to post Share on other sites
ebinmaine 66,311 #19 Posted July 25 1 hour ago, squonk said: Carbole, Mr.Gasket, Facet, they are all the exact same pump with a different brand name attached. I went back and looked through those threads of yours. Was there a particular reason you chose the location that you did for the fuel pump to set? Or is it just a matter of convenience? 1 Share this post Link to post Share on other sites
squonk 40,662 #20 Posted July 25 31 minutes ago, ebinmaine said: I went back and looked through those threads of yours. Was there a particular reason you chose the location that you did for the fuel pump to set? Or is it just a matter of convenience? Near the tank, under it and easy to get to. 1 1 Share this post Link to post Share on other sites
pfrederi 17,491 #21 Posted July 25 1 hour ago, squonk said: Carbole, Mr.Gasket, Facet, they are all the exact same pump with a different brand name attached. Carbole pumps are made in China..Facet are made in USA 2 Share this post Link to post Share on other sites
squonk 40,662 #22 Posted July 25 (edited) 2 hours ago, pfrederi said: Carbole pumps are made in China..Facet are made in USA I stand corrected. Same body and look though. Edited July 25 by squonk 1 Share this post Link to post Share on other sites
pfrederi 17,491 #23 Posted July 25 I would guess Chinese clone like the Honda small engine knock offs... 1 Share this post Link to post Share on other sites