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post #1 of 4 Old 10-12-2018, 07:20 PM Thread Starter
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Help Honda 5518 Battery Hot Issue

Hey guys I have a Honda 5518 my dad bought back in 1994. I helped him go pick it up and remember how nice it was. Well my dad passed away in 2000 and my brother inherited the tractor. He used it until it started overheating and blowing oil. Then he gave it to me knowing I would get it fixed. Well I replaced the head gasket in it and used it for a few years until it started overheating again and causing the radiator to leak. I spent some money and replaced the engine. I bought a new motor in 2016 from a Honda dealer but of course the purchase was at my own risk. Well overall the motor has be working fine until now. I had the radiator soldered and fixed but my one issue is the battery hot light keeps coming on causing the tractor to shutoff after it gets hot. It takes about 20 mins before it kills then it takes a few mins to cool off before I can use it again for another 20 mins or so. I checked the thermostat in the engine and it seems to be working fine. I had the thermostat switch replaced when I had the radiator repaired so at this point I'm at a loss. Any advice would be greatly appreciated.

thanks in advance,


TBAD.
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post #2 of 4 Old 10-13-2018, 02:57 AM
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Re: Honda 5518 Battery Hot Issue

You have a battery temperature light? Or did you mean an engine overheating warning light?

If it is an engine overheating light, then I would suggest getting an external temp reader and see how hot the engine gets.

And when you had the thermostat out for testing, did the coolant passages seem reasonably clean, which no crud built up on the walls?

As well maybe check the radiator:
-that it still flows well. Maybe when you had it fixed, they didn't do a great job?
-that the fins on it are clean, fairly straight, and still connected to the coolant pipes
-that the fan for the rad is also clean, and spinning properly (for example, the Kawasaki FR651V engine in my zero turn had the fan incorrectly installed at the factory, causing my engine to overheat)
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post #3 of 4 Old 10-13-2018, 07:44 PM Thread Starter
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It is the battery light not the temp light. When I had the radiator repaired I installed a new thermoswitch so I would know if and when it overheated. The engine is brand new so no sludge where the thermostat goes. I have considered the radiator but not sure how to test the flow. I also tested the temp light and alarm which both work. I didn’t however Test the thermoswitch I assume it works because it’s new. I also tried a larger battery thinking it had something to do with the small battery but that wasn’t the case. I feel something I’d causing the battery light to come on and I associated with overheating but I could be way off.
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post #4 of 4 Old 10-13-2018, 08:47 PM
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Re: Honda 5518 Battery Hot Issue

The battery light is generally (as in, I haven't had one do something else) to indicate that the engine alternator isn't working right.

And if it isn't working right, I would expect the engine to start, run for X amount of time, then quit, once the battery level gets too low to power the ignition system.

What is unusual about what you describe is that, after just waiting some time, presumably without charging the battery, you can restart the motor and run the engine for another X amount of time.

I would suggest testing your battery/charging system while the engine is running. I don't know your engine, so I can't help you with how to do this testing.
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