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Clean a gummed up motor

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Childresshunt

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DeRidder, Louisiana
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  1. Bashing
whats the best thing to use to clean up a gummed up motor i just got a hpi 5.9 with a savage buy that the motor is gummed and needs to be cleaned.
 
Personally I use brake cleaner because of the strong flow. It won't harm any of the metals or even plastic, and it breaks down grease and gunk extremely well. I use it for many things lol. Carb cleaner would work also.
 
I've always done a full teardown and soaked/washed the parts in hot water and Simple Green. I use a toothbrush to scrub the parts really good.

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a full tear down is deff in order i was just wondering what would be best to clean all the parts with and soak them in the last motor i cleaned i soaked in gas then dropped in a dawn bath for a while then tooth brushed em
 
Most people recommend soaking in the nitro fuel you run it with. I personally use Yamaha combustion chamber cleaner. Its more powerful than carb cleaner, but has a much stronger sent to it.
 
Soaking in nitro is quite expensive, ouch not sure if I'd try that one lol.

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Soaking in nitro is quite expensive, ouch not sure if I'd try that one lol.

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Soak it in old nitro fuel that you would be concerned about running then. Its not like your using a lot of it anyway. Your not supposed to submerge it, your just soaking the parts and the inside of the crankcase. On top of all that dont soak in a big dish or you will be using more than you need no matter what you choose to clean it with. Idk why your laughing more people do that than you know. It would use less than $3 worth of fuel which is less than what you would be spending on anything else in the first place to do the same thing. Dont be stupid and wasteful. Use your head.
 
Soak it in old nitro fuel that you would be concerned about running then. Its not like your using a lot of it anyway. Your not supposed to submerge it, your just soaking the parts and the inside of the crankcase. On top of all that dont soak in a big dish or you will be using more than you need no matter what you choose to clean it with. Idk why your laughing more people do that than you know. It would use less than $3 worth of fuel which is less than what you would be spending on anything else in the first place to do the same thing. Dont be stupid and wasteful. Use your head.

I used to use my old fuel that went bad to clean my engines. When I ran out I looked for an alternative and found that de natured alcohol and mean great works really good. I have heard people using carb cleaner that I would not do. If anything I would use brake cleaner its less abrasive and sensor safe. Plus some brake cleaner has some lubing capabilities.:D
 
I used to use my old fuel that went bad to clean my engines. When I ran out I looked for an alternative and found that de natured alcohol and mean great works really good. I have heard people using carb cleaner that I would not do. If anything I would use brake cleaner its less abrasive and sensor safe. Plus some brake cleaner has some lubing capabilities.:D

I used Yamaha cumbustion chamber cleaner which is made to soak engines and carbs in dirt bikes, atvs, and motorcycles to deep clean the engine. The only downside is that it leaves a strong smell that smells like gas for around a week. I would be cautious about carb cleaner too. Maybe WD40 would be okay though.

If the engine is dissasembled all you need is hot water/soap and a toothbrush.

I would be worried about water causing the engine to rust. Water is the last thing you want in your engine.
 
Soak it in old nitro fuel that you would be concerned about running then. Its not like your using a lot of it anyway. Your not supposed to submerge it, your just soaking the parts and the inside of the crankcase. On top of all that dont soak in a big dish or you will be using more than you need no matter what you choose to clean it with. Idk why your laughing more people do that than you know. It would use less than $3 worth of fuel which is less than what you would be spending on anything else in the first place to do the same thing. Dont be stupid and wasteful. Use your head.

I was laughing because I have a sense of humor.. We do try to be friendly and helpful here and have a good time, and not call others' "stupid". And I am well aware people do it, I have done it, we are simply offering alternatives and knowledge.

---------- Post added at 1:41 AM ---------- Previous post was at 1:36 AM ----------

But anyhow... In the garage, I used to use Gunk, the kind that doesn't foam. It's great for cleaning up metals and also safe on plastics and rubbers, works very well and a somewhat common garage item. Plus its cheap! I just use brake cleaner because it leaves no film and evaporates instantly. I use that crap for everything lol. Castrol has one too but i forget name, super clean or something? Awesome stuff.
 
I would be worried about water causing the engine to rust. Water is the last thing you want in your engine.

You're not letting it sit in the water and then air dry. As soon as you're finished cleaning it, blow it dry and then give it a generous coat of 3-in-1 (or lubricant of choice) while reassembling. I've cleaned multiple engines with hot water/Simple Green and a toothbrush; I've never had an issue.
 
I was laughing because I have a sense of humor.. We do try to be friendly and helpful here and have a good time, and not call others' "stupid". And I am well aware people do it, I have done it, we are simply offering alternatives and knowledge.

---------- Post added at 1:41 AM ---------- Previous post was at 1:36 AM ----------

But anyhow... In the garage, I used to use Gunk, the kind that doesn't foam. It's great for cleaning up metals and also safe on plastics and rubbers, works very well and a somewhat common garage item. Plus its cheap! I just use brake cleaner because it leaves no film and evaporates instantly. I use that crap for everything lol. Castrol has one too but i forget name, super clean or something? Awesome stuff.

I didnt call you stupid. I guess the better way of saying it is dont be a dummy and waste the fuel you have. I have a pretty dry sense of humor myself but I honestly dont understand whats funny about using nitro fuel to clean an engine.
 
I use denatured alcohol straight from container and a round thick paint brush with 1 inch hairs or a tooth brush. Ace hardware has it in the quart size for around $7. Its enough to clean several engines with product left over for future cleanings as well. I also have a small 4 inch deep stainless bowl i found at walmart just for breaking down engines and soaking/cleaning parts.
 
The hpi i had to clean i actually removed the piston and sleeve and the bearings where was so stiff. i just look a lil shot of nitro fuel and started spining the crank shaft and they freed up real nice wiped everything else off and reassembled then put some ARO in it
 
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