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720 fuel pump

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AC720Man View Drop Down
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Joined: 10 Oct 2016
Location: Shenandoah, Va
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    Posted: 19 Oct 2021 at 10:31pm
Steve, looks like I will be ordering that electric fuel pump from you. Called today to get a fuel pump rebuild kit for a Onan cckb. Was flabbergasted at the price of a rebuild kit that I paid $47 for 8 years ago. So,not staying factory correct, I will be trying your kit. I am a factory stock guy, but this doesn’t make economic sense to me. Trying to support your retirement my friend lol. I’m sure it will perform well.
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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Steve in NJ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve in NJ Quote  Post ReplyReply Direct Link To This Post Posted: 20 Oct 2021 at 8:37am
Hi Rob!
Thank you for keeping us in mind! I havta' put a kit together for ya if you want one. Sheesh, seems like a hot commodity lately.  I sold two of those kits this month so far and two last month. I don't know, maybe everybody is tired of paying a lot of dough for a little rebuild gasket kit. Everything is starting to go up. I just got another wire increase because of Copper going up, so here we go again adjusting prices on the website for the wiring systems.  This is gettin' old, and so am I........   Wacko
Steve@B&B
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote BrianC Quote  Post ReplyReply Direct Link To This Post Posted: 20 Oct 2021 at 11:53am
I have an electric pump on mine. One thing I like is when you run out of gas,
the pump fills the carburetor quickly, much less cranking to start.
At least that is my observation, I have 2 other Onans, with the original system, and they
need a lot of cranking or ether. I didn't look, is there a primer lever or bulb that I overlooked?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote orangeman Quote  Post ReplyReply Direct Link To This Post Posted: 20 Oct 2021 at 3:36pm
BrianC:  Regarding the primer, the OEM system did not have a primer.   Some install a boat primer bulb to assist with fuel to carb bowl.  Have seen this type of retrofit, boat fuel line primer in an Allis Diesel as well. 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote AcFordHawk Quote  Post ReplyReply Direct Link To This Post Posted: 20 Oct 2021 at 3:49pm
On the 620 and 9020 tractors I once owned both Onan mechanical fuel pumps had a priming lever from the factory.  Silver lever with return spring.  It can be a pain to get to being under the carb and the  throw is short so takes a few pumps.   




Edited by AcFordHawk - 20 Oct 2021 at 4:00pm
IB (restoring), MF GC1705, MF 2705E
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orangeman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote orangeman Quote  Post ReplyReply Direct Link To This Post Posted: 21 Oct 2021 at 12:19pm
ACFordHawk has it right. I stand corrected!  My 620 has a Mr. Gasket #42S HTH's.  

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AC720Man View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AC720Man Quote  Post ReplyReply Direct Link To This Post Posted: 04 Nov 2021 at 9:09pm
Steve, received the new fuel pump kit. Very nice kit, looking forward to install it this weekend and get my 720 mowing the yard again.
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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HudCo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HudCo Quote  Post ReplyReply Direct Link To This Post Posted: 04 Nov 2021 at 10:16pm
i bought that same 42s low preasure pump about six mounts ago for my 616 and not got it on yet but will soon  should help it seems like the carb is allways out of fuel  i will get mine done when i switch over to the cckb manifold and carb
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Steve in NJ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve in NJ Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2021 at 5:58pm
10-4 Rob!  That got there quick!
Steve@B&B
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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