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Nate (OH) 
Silver Level
Joined: 12 Sep 2009
Location: Bellevue, Ohio
Points: 216
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 Topic: allis 720/ onan
Posted: 23 Mar 2018 at 7:37am |
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All you guys that are running electric fuel pumps: what are you running? Most guys I see running them are running the facets. Specify what you use and PSI. Getting tired of having to purchase fuel pump rebuild kits every year.
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Acdiesel
Orange Level
Joined: 15 Jun 2012
Location: Rochester Ohio
Points: 2548
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Posted: 24 Mar 2018 at 8:31pm |
i use a facet,( i think it's the 3-4 psi) but i find that the heat from the engine will cause them a premature failure, i mow 3 acres with mine (so about 55 hours per year) i usually get about 3 years out of one.
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D19 diesel,D17 diesel SER.3 D14 NF,D14 WF, D15 SER.II wf
D15 SER.2 DIESEL,D15 ser.II nf
D12 SER.I, D10 Ser.II
2-720'S
Gmc,caterpillar
I'm a pharmacist (farm assist) with a PHD (post hole digger)
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ac720nut
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Joined: 09 Feb 2016
Location: Dexter Mi
Points: 1217
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Posted: 25 Mar 2018 at 7:28am |
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I also use the Facet, so far no problems
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Nate (OH)
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Joined: 12 Sep 2009
Location: Bellevue, Ohio
Points: 216
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Posted: 25 Mar 2018 at 4:01pm |
 Acdiesel wrote:
i use a facet,( i think it's the 3-4 psi) but i find that the heat from the engine will cause them a premature failure, i mow 3 acres with mine (so about 55 hours per year) i usually get about 3 years out of one.
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We use ours for about 6 acres a week and odd jobs so hours normally get racked on lol. For the last 2-3 years we've had to rebuild the stock fuel pump because the diaphram and seals keep going out. We normally run them empty of gas and run stabil through them before putting away for winter. Works well for the most part except this ongoing issue. Does the 3-4 psi seem ideal? I was leaning more toward the lower 1.5-2 models.
Edited by Nate (OH) - 25 Mar 2018 at 4:02pm
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AC720Man
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Joined: 10 Oct 2016
Location: Shenandoah, Va
Points: 4919
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Posted: 25 Mar 2018 at 8:33pm |
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Still running the stock pump on both of my 720’s. Haven’t had this issue before. Rebuilt the pump as part of a restoration 7 years ago in one of them. Not sure what’s causing the issue.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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talntedmrgreen
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Joined: 25 Jun 2013
Location: Caledonia, MI
Points: 477
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Posted: 26 Mar 2018 at 9:27am |
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You're going to want the lower PSI pump....3-4 psi will push a lot more fuel than you need. A nice mod, even with the lower pressure pump, is to enlarge the bore in the fuel return line fitting on the carb. The oem hole is very restrictive, and when converting, you can end up with fuel in your oil quickly if your pump overwhelms the carb and the return can't handle the flow.
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Patterson B1*B1/B1Forklift*B10*BigTen/B1Loader*B110*B208*B206*616*Homelite T16H/T8/T7/RM7E*Landlord/Loader/Trencher*Broadmoor717*Serf525*2110*7790*Legacy XL*Twin 20*Squire9*Squire6*JCPenny 494
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Acdiesel
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Joined: 15 Jun 2012
Location: Rochester Ohio
Points: 2548
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Posted: 30 Mar 2018 at 11:00am |
YES, I DID HAVE TO DRILL OUT THE RETURN, SO FAR AFTER 7 YEARS HAVEN'T HAD ANY CARB/FLOODING ISSUES.
DAN  |
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D19 diesel,D17 diesel SER.3 D14 NF,D14 WF, D15 SER.II wf
D15 SER.2 DIESEL,D15 ser.II nf
D12 SER.I, D10 Ser.II
2-720'S
Gmc,caterpillar
I'm a pharmacist (farm assist) with a PHD (post hole digger)
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Nate (OH)
Silver Level
Joined: 12 Sep 2009
Location: Bellevue, Ohio
Points: 216
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Posted: 31 Mar 2018 at 3:04pm |
Acdiesel wrote:
YES, I DID HAVE TO DRILL OUT THE RETURN, SO FAR AFTER 7 YEARS HAVEN'T HAD ANY CARB/FLOODING ISSUES.
DAN |
That's a sharp looking 720!
The one on the left we picked up at an auction. Supposidly had been gone all thru but since we've acquired it we have done nothing but replace things lol. The one on the right was my great grandfathers who purchased it new. We acquired this one after my great aunt had sold her farm.
Edited by Nate (OH) - 04 Apr 2018 at 6:38pm
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chainweaver
Bronze Level
Joined: 09 Feb 2014
Location: west central m
Points: 62
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Posted: 19 Apr 2018 at 3:35pm |
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Nate, try using Startron stabilizer. I quit using Stabil when it ate the gas line on my jd. Had to replace from carb to tank. A friend said stabil will rot from the inside out. Just my two cents.
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Coke-in-MN
Orange Level Access
Joined: 12 Sep 2009
Location: Afton MN
Points: 41578
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Posted: 20 Apr 2018 at 6:02pm |
this one on amazon for $12
W8sunjs Universal 12V Heavy Duty Electric Fuel Pump Metal Solid Petrol 12 Volts  See walmart has this online for $18. https://www.walmart.com/ip/New-12V-Low-Pressure-Universal-Electric-Fuel-Pump/197963606?wmlspartner=wlpa&selectedSellerId=4241&adid=22222222227061826623&wmlspartner=wmtlabs&wl0=&wl1=g&wl2=c&wl3=165546459570&wl4=pla-272691342691&wl5=9019700&wl6=&wl7=&wl8=&wl9=pla&wl10=113537607&wl11=online&wl12=197963606&wl13=&veh=sem Been using this style on my trucks and on mower engines instead of on both Kohler and other engines - they do come in different pressure ratings On old White Dump truck it supplies enough fuel to run the 400 cu in 6 cylinder engine
Edited by Coke-in-MN - 20 Apr 2018 at 6:08pm
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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Toscani NE SD
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Joined: 21 Jan 2011
Location: Milbank S.D.
Points: 369
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Posted: 21 Apr 2018 at 7:19am |
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I got one from advance auto, think its mr.gasket brand, low psi, been several years now still works good, but we don't have the bad gas trouble a lot of folks have out east,actually no gas troubles. still running factory pump on 620 and that's from 74
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Nate (OH)
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Joined: 12 Sep 2009
Location: Bellevue, Ohio
Points: 216
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Posted: 24 Apr 2018 at 3:34am |
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Appreciate the advice guys. Still weighing my options and trying to figure out what I want to do.
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Steve in NJ
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Joined: 12 Sep 2009
Location: Andover, NJ
Points: 11803
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Posted: 26 Apr 2018 at 9:27pm |
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Todays Ethenol plays havoc with rubber parts in pumps, carbs etc. That's probably your culprit if there's Ethenol in the fuel you purchase.
Steve@B&B
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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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Nate (OH)
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Joined: 12 Sep 2009
Location: Bellevue, Ohio
Points: 216
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Posted: 27 Apr 2018 at 2:32am |
Steve in NJ wrote:
Todays Ethenol plays havoc with rubber parts in pumps, carbs etc. That's probably your culprit if there's Ethenol in the fuel you purchase.
Steve@B&B
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I'm pretty sure that it has a large part to do with it. We normally run the stabil before storing to help but here lately just seems it doesn't help much.
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