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By Rob R
So I have a Honda gx390 OHV engine in one of my Sears Suburban's which runs great and has cut my lawn for at least 5 years, it has electric and pull start. The engine was installed by the PO as was the wiring. Since I have owned it, it has never charged correctly. It has two wires coming from the engine one black and one brown... The black is currently connect back to the B+ through a small 1 inch plastic connector that has the symbol for a Diode on it I suspected that this is the juice back to the battery don't know if this is also some sort of rectifier (very small like one inch X one inch plastic) I took the voltage reading off this and it was a very low reading ….. like 2.5 volts DC. The other brown wire to me was more like it this wire is just hanging not connected voltage measured 27-32 volt AC.... Both wires have the same push-on connector and I seriously considered switching the wires (connecting the hanging 27-32 volt AC to the Diode and see what happens but I didn't have the courage to do it).
Questions : Could I install a new circuit using a external rectifier to the 27 volt AC drop? Note there is only ONE wire from the stator putting out the 27 volts DC all the Wheel Horse rectifiers I have seen have TWO wires and a B+ tab. Would you try connecting the hot AC volt line to the current Diode/Rectifier? Could doing this take out the Diode, also If yes and this provides DC output how would I control the amount of charge to the battery. Do they make ONE wire (AC input Rectifiers) ?
Lots of questions I really need to solve this problem so that the battery stays charged and I can use the starter. Thanks in advance
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By 69-Raider-10
Happy Easter fellow Horse Junkies! I am not happy with my Raider 10 after I swapped out the Lauson for a K181. Its not so much the difference in power between the 10hp and the 8hp, its the fact that my other 2 tractors are a Bronco 14 and a 416 8 Onan. I hop on the Raider and even though its the most mechanically sound and aesthetically pleasing tractor, it has the least cajones. I have a low hour 14hp Magnum sitting around that I was saving as a backup but I think I want to drop it in the Raider. Anyone make this type of swap before? Anything that makes it not doable or ill advisable? As always I appreciate the input and your time in answering. Happy Easter!
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By r1jakecfd
Hi Guys,
The Onan in my 520H was running poorly so last month I took the heads off, decarboned, cleaned/reseated the valves, checked valve seats and reassembled with new gasket set. When installing intake manifold, I realized last year (carb cleaning) I forgot to hook up vacuum line from manifold to gauge. Hooked it up correctly this time and ran great. First blizzard yesterday and started snow blowing. After about 15 minutes the became noticeably louder with less power.
I was wondering firstly if anyone has any idea what went wrong?
Also, I was thinking about repowering with a Honda or Vanguard and would love opinions on which way to go? Also, should I go with an engine or kit and which company? I’m good at fabrication, etc.
Thanks in advance!
Happy NewYear
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By dhr5050
I am looking for an engine that will easily swap into my C100 that is not the K241AS. Any suggestions?
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By Rob R
Hi folks Brewster Rob here, was gifted a Cub Cadet LTX 1040 in great shape other then a completely blown 19HP in-famous Kohler Courage SV590, today I acquired a 17HP Pro OHV CV490S in perfect running condition.... so I want to swap the engines. They have identical vertical shafts question is the electrical. The Courage had four wires coming from the engine red/green/white/purple, the Pro has 3 white, 1blk and 1 red. I also have the alternator and regulator from the blown Courage.... might I be able to swap alternators??? I of course have the old Courage key switch I do NOT have the new engine key switch......... Need help from the Red Square wizards and PLEASE think about the best result way to go here.... thank you in advance.
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