SylvanLakeWH 28,820 #24451 Posted yesterday at 06:14 PM Weird... Go with an electric pump and bypass it altogether? 1 1 Share this post Link to post Share on other sites
ebinmaine 73,319 #24452 Posted yesterday at 06:31 PM 16 minutes ago, SylvanLakeWH said: Weird... Go with an electric pump and bypass it altogether? I could wire one in temporarily. I keep a Facet on the shelf. I don't wanna do much considering it's a parts tractor. 1 Share this post Link to post Share on other sites
Ed Kennell 42,370 #24453 Posted yesterday at 06:38 PM 30 minutes ago, ebinmaine said: The way it sits right now I cannot use the primer to push fuel through. Then it is not connected correctly or one or both of the two check valves is frozen closed. If the two check valves are working properly, you should be able to blow air or pump fuel through any pump. 1 1 Share this post Link to post Share on other sites
adsm08 3,420 #24454 Posted yesterday at 07:39 PM 1 hour ago, ebinmaine said: Messing about with trying to start/ run/drive the 520H. Got the wiring connected. Turns over great. Fuel filter was cracked so I took th air cleaner off and changed the lines and filter from pump to carb. Here's how it WAS connected. Yes that's right side up. No it's not correct. I can't flip the pump because the holes are offset. Here's how it IS NOW. I want to believe that I have it connected right. But I don't. Or the fuel pump is not pumping enough. The way it sits right now I cannot use the primer to push fuel through. If I reverse the bottom two which makes it theoretically connected backwards, I can use the primer to fill the carburetor and it will run for a minute or two but then die when it's out of fuel because it's not sucking through the pump. Thoughts comments questions suggestions? I'll try again tomorrow... Eric, the first principle of any sort of wrenching is to assume any work you didn't do yourself was done wrong. The second is to assume any work you did do yourself was done wrong. I'm not familiar with that uinit butit has screws on the cover, that means it's removable. I don't know what the insides look like, but it's symmetrical. That means that cover can be installed backwards. Turning it 180 degrees would put the "in" marking where the hose from the tank was originally. 1 1 Share this post Link to post Share on other sites
ebinmaine 73,319 #24455 Posted yesterday at 07:45 PM 5 minutes ago, adsm08 said: Eric, the first principle of any sort of wrenching is to assume any work you didn't do yourself was done wrong. The second is to assume any work you did do yourself was done wrong. I'm not familiar with that uinit butit has screws on the cover, that means it's removable. I don't know what the insides look like, but it's symmetrical. That means that cover can be installed backwards. Turning it 180 degrees would put the "in" marking where the hose from the tank was originally. I'd been thinking the same about all 3 above sentences. I may pop that top cover off tomorrow. 1 Share this post Link to post Share on other sites
ML3 1,791 #24456 Posted yesterday at 07:58 PM Slight disassembly of the 702 to degrease/clean it. Then I assessed what needs to be done. Definitely some wiring issues.....I'll probably just re-wire it. New fuel line. Engine & trans oil change. Steering needs some help. Overall nothing really significant but a bunch of little things. 1 Share this post Link to post Share on other sites
Goldnboy 1,040 #24457 Posted yesterday at 08:06 PM Today I removed the brackets from the front thatcher and bolted on a bump receiver hitch and inserted a sleeve hitch yoke. Should have thought of it sooner...it lifts easy and attaches quickly 4 Share this post Link to post Share on other sites
wallfish 18,343 #24458 Posted yesterday at 08:09 PM (edited) 31 minutes ago, ebinmaine said: I may pop that top cover off tomorrow. I believe you may need to swap these 2 lines. They are also marked IN and OUT Or, the one to the carb down next to the primer bulb On mine both in and out are in that position. The yellow line is from the tank the black to the carb, That horizontal bump on the cover is opposite postion and it also only has 3 ports Edited yesterday at 08:18 PM by wallfish 1 Share this post Link to post Share on other sites
lynnmor 7,899 #24459 Posted yesterday at 08:29 PM 2 hours ago, ebinmaine said: Yes that's right side up. No it's not correct. I can't flip the pump because the holes are offset. Here's how it IS NOW. Thoughts comments questions suggestions? I'll try again tomorrow... On the back side of the pump, under the cover, is the pulse hose, check that it is in good condition and connected. Mine has operated for the past 30 years just fine, here is today's photo: 1 1 Share this post Link to post Share on other sites
MainelyWheelhorse 1,724 #24460 Posted 23 hours ago (edited) @ebinmaine I’d almost mount the pump as low as I could get it and try to gravity feed it into the filter which could be as low too. The pump may be struggling to push fuel out to the filter as is. Edited 22 hours ago by MainelyWheelhorse 1 Share this post Link to post Share on other sites
953 nut 60,647 #24461 Posted 22 hours ago 3 hours ago, ebinmaine said: Thoughts comments questions suggestions? Doctor's orders. Put that Onan on an IV. Use a temporary tang gravity feeding the carburetor. 2 Share this post Link to post Share on other sites
MainelyWheelhorse 1,724 #24462 Posted 22 hours ago Today was paint/fixing day. I repainted the C-141 hood IH red, the left inner front rim white and retried slime in the 312’s left rear tire. So far so good. 1 Share this post Link to post Share on other sites
ebinmaine 73,319 #24463 Posted 18 hours ago 4 hours ago, 953 nut said: Use a temporary tang gravity feeding the carburetor. That'll make it run but I can't drive it ... Share this post Link to post Share on other sites
Treepep 699 #24464 Posted 11 hours ago 7 hours ago, ebinmaine said: That'll make it run but I can't drive it ... CAN, Should NOT! Too advanced for me. I hope that you figure it out. 1 Share this post Link to post Share on other sites
ebinmaine 73,319 #24465 Posted 9 hours ago 1 hour ago, Treepep said: CAN, Should NOT! Too advanced for me. I hope that you figure it out. Oh. I'll get it. Just a matter of how.... 1 Share this post Link to post Share on other sites
ebinmaine 73,319 #24466 Posted 58 minutes ago The 520H runs and drives! The entire motion control system is worn and it's a two hand driver so no video... Seems reasonable. Engine is decent and smooth. Transmission operates correctly. I had the hood off already so I leaned up against a tree. Easily made two nice tire holes in the gravel. Now.... to rip it apart! 1 1 Share this post Link to post Share on other sites