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Discussion Starter #1
I recently purchased a used Rubicon and it makes a disturbing sound at very low speed just as transmission is about to disengage. I found evidence that it may have been swamped but have since thoroughly cleaned radiator, oil cooler and changed the oil. My question is, is the noise I am hearing an indication of serious damage or is it normal? I'm new to this so my apologies if I am going against protocol. I am hoping someone with experience servicing these machines will be able to help. I'm attaching a video with audio to show what it is doing. For background the machine is basically in mint condition and only has 7xx miles. The machine is fully warmed up and in drive with D1 selected. Listen closely when you see speedometer read 4 mph. File is too big to upload so I will add a link to the video on YouTube. Thanks.

 

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I'm no mechanic, but from my own previous experience swamping my own Rubicon and seeking advice here, the Hondamatics are very sensitive to any kind of contamination....especially after being swamped. I did 3 oil changes as per instructions from the dealership after swamping mine. Got **** lucky apparently cause its still running good. Hopefully it has not been swamped, what have you found for evidence of this so far?
 

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Discussion Starter #3
Just mud under the plastic and dried mud packed in radiator and oil cooler. Some debris in bottom of airbox. This doesn't necessarily mean it took water/ mud into the intake or exhaust but maybe was stuck bad and worked hard. It may have been ran hot as well if the oil cooler and radiator were not getting good air flow.
 

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First oil change when I got it, the oil was pretty dirty. After I cleaned the radiator and oil cooler (externally), I changed the oil again in case it got too hot and the oil was perfect when it came out....light Amber.
 

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I would recommend running honda oil. I dont think that will solve your problem though. Its possible to have somthing going on with the timing chain. Thats where i would start
 

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Your oil pressure is low and because of that the transmission is on it's way out. It might last a day, could last for years.
 

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Discussion Starter #9
Is oil pressure low because of pump volume or tolerances too high in passages? Would replacing the oil pump do any good? Keep in mind that it only has 700 miles it. I am considering getting a new Foreman with the foot shift but I may be able to keep this and use until transmission fails. Sounds like a replacement trans is $1,200.... What would you do if you were in my shoes?
 

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Discussion Starter #10
The dealer I bought it from only sells used ATVs and snowmobiles. They get their stock from dealers that take trade-ins. My guess is that the owner traded it in when they heard the noise. Probably got $2,500 on trade and the dealer I bought from probably paid a little more or same and sold it to me for $3,500. Now it's my problem and I don't want to screw someone else over with it because it that wouldn't be right. I am afraid if I traded it in it would just get passed on in it's current condition... pretty crappy deal all the way around ☹
 

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It's a no win situation for everyone. I would see if the company you bought it from could get the parts for cost from the dealer they bought it from (oil pump, transmission, gasket kits and a set of rings). Set them parts on the shelf and ride it until it goes out completely. Or have them sell it again and the problem goes back to them.
 
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