184 Lo Boy weak spark/stalling

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Lucas1997
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184 Lo Boy weak spark/stalling

Postby Lucas1997 » Sun May 22, 2022 11:59 am

Hi guys! I Just joined this forum with hopes to get a question answered by some more experienced people.

So I’ve owned a 1979 184 Lo-Boy for about 3 years now, that has been a great tractor. About 6 months ago, I noticed if I use the tractor (specifically mowing) for more than about 30-45 mins the tractor will stall out. If I try to restart the tractor it will continuously stall out, but if I let it sit a couple of hours, it starts and runs fine again. The carburetor is in good shape, it’s getting fuel, so I then came to the conclusion that it has a wiring/ignition problem due to my voltage gauge on the tractor reading low. So last week I replaced the points/condenser, coil, pointer, wires with all Hamilton bobs parts, and I noticed upon disassembly, that the plastic insulator for the distributor terminal screw was all but gone. on the inside. So I thought I had found my problem, but after replacing the distributor screw and new plastic pieces, the tractor will barely run. Points have been gapped to .20” like the manual specifies, and all wires are in good shape. could I have gotten a bad coil?

Look forward to hearing from you guys,

Lucas

Richard Goetze
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Re: 184 Lo Boy weak spark/stalling

Postby Richard Goetze » Sun May 22, 2022 12:57 pm

Sounds like bad coil or wrong voltage coil to me

Jim Becker
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Re: 184 Lo Boy weak spark/stalling

Postby Jim Becker » Sun May 22, 2022 2:24 pm

A bad condenser could also have the same symptoms. If it is an out-of-box failure, I'd be more incluned to start there. Put the old condenser back in and see what happens.

Eugene
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Re: 184 Lo Boy weak spark/stalling

Postby Eugene » Sun May 22, 2022 2:25 pm

Could be a bad coil.

Check the battery voltage at the battery then again at the coil. Something to consider is a bad battery ground. Try moving the battery ground cable from the sheet metal to the transmission case.
I have an excuse. CRS.

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Don McCombs
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Re: 184 Lo Boy weak spark/stalling

Postby Don McCombs » Sun May 22, 2022 2:48 pm

Eugene wrote:Try moving the battery ground cable from the sheet metal to the transmission case.

Or just clean it well and reinstall.
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Lucas1997
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Re: 184 Lo Boy weak spark/stalling

Postby Lucas1997 » Sun May 22, 2022 6:27 pm

Thanks for the reply’s guys! I’ve changed out the coil and still have the same problem, so tomorrow I will swap condensers and see if that makes a difference as well as clean and inspect the ground cable.


Lucas

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Re: 184 Lo Boy weak spark/stalling

Postby Eugene » Sun May 22, 2022 8:06 pm

Lucas1997 wrote:Thanks for the reply’s guys! I’ve changed out the coil and still have the same problem, so tomorrow I will swap condensers and see if that makes a difference as well as clean and inspect the ground cable.
Normally it's the corrosion where the battery box mounts to the frame.
I have an excuse. CRS.

Lucas1997
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Re: 184 Lo Boy weak spark/stalling

Postby Lucas1997 » Mon May 23, 2022 5:28 pm

Hey guys, just swapped out the condenser and she fired right up and ran just like it should! The new one must’ve been bad out of the box. Thanks everyone for the help!

Lucas

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Don McCombs
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Re: 184 Lo Boy weak spark/stalling

Postby Don McCombs » Mon May 23, 2022 6:00 pm

Not uncommon these days.
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Re: 184 Lo Boy weak spark/stalling

Postby cubbrian » Mon May 30, 2022 9:47 pm

I had the same problem a few years ago on a regular cub. I ohmed out the condenser and the lead was shorted to the case.


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