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Oil change with flush

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Rodney Ivers

03-13-2002 13:17:13




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I have an 8N that needs to have both engine oil and hydraulic oil changed. Both are very old and in very bad condition. I would like to replace them very soon, but I also feel like I need to not only drain and replace the fluids, but should I not also flush those out somehow. Any suggestions?




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SteveB(wi)

03-14-2002 07:10:43




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 Re: Oil change with flush in reply to Rodney Ivers, 03-13-2002 13:17:13  
If you put a hand in there and feel whats down in there you may want to pull the pto and pump. When I did some work on ours I found at least an 1 1/2" of crud in the bottom. Oil had been changed/added to over the years, but it really needed a good cleaning out. It is not as much work as it looks like and only a few readily available gaskets. Brings great peace of mind.



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Why stir it up?

03-13-2002 14:57:01




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 Re: Oil change with flush in reply to Rodney Ivers, 03-13-2002 13:17:13  
My suggestion is to simply change the oil and hydro fluids, your oil filter, then run it for a few hrs, and replace the fluids again. This way, you don't introduce something to the innards that ain't sposta be there, and you don't stir up some crud that could get where it ain't sposta be either. Even if you choose the kerosene cleanout method, you should change fluids again shortly, to be sure you get (most) of the kero-out. Most crud that settles in low or outta the way places inside, won't do any damage if left alone. The only REAL way to get the innards clean is to start with a complete disassembly. Marvel Mystery Oil may be a less aggressive method- add some to the crankcase and gas, then after a few hours of running, change the oil and filter again. It's a solvent and will free up things. Don't think you should use it in the tranny however. My 3 cents.

Steveo

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TimK

03-13-2002 14:54:24




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 Re: Oil change with flush in reply to Rodney Ivers, 03-13-2002 13:17:13  
I would hesitate to flush the engine oil. Unless you can physically get into the pan, which you can't, if you break some of that crude loose, it may get into some of the oil passages and really clog things up, with the only result a complete tear down. I would go with one of the other responses which suggested to just change the oil several times in short order. My $.02



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Chris(MI)

03-13-2002 14:08:23




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 Re: Oil change with flush in reply to Rodney Ivers, 03-13-2002 13:17:13  
After draining the trans and rear end you can unbolt your PTO shaft and slide it out. Reach in with your hand and scoop out any accumulated crud. I flushed out my trans with diesel fuel and cycled the 3 point a few times, let drain a day or two then refill.

Chris



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Rodney Ivers

03-13-2002 13:43:55




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 Re: Oil change with flush in reply to Rodney Ivers, 03-13-2002 13:17:13  
The diesel fuel/kerosene solution sounds good to me with one exception. Once I've drained the diesel fuel/kerosene, how do I make sure that there is not enough left in the reservoirs to dilute the new oil. Maybe I shold let it set a day or two to evaporate?



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Dave Manley, NY

03-13-2002 14:02:04




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 Re: Re: Oil change with flush in reply to Rodney Ivers, 03-13-2002 13:43:55  
If you let it set a day or two with the drain plugs out the Kerosene should evaporate Quickly.



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8n in mn

03-13-2002 13:38:06




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 Re: Oil change with flush in reply to Rodney Ivers, 03-13-2002 13:17:13  
There are over the counter motor flush products available that could be used in the engine and transmission. I've also heard of replacing oils with kerosene or diesel fuel and operating the engine and/or driving the tractor a few minutes to slosh the cleaning agent around and through the ports. Probably should cycle the 3 point up and down a few times to run some fluid thru it, too. Personally, I prefer to replace with proper oil and change oil frequently and repeatedly until I think engine and/or transmission has been cleaned up.

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Dave Manley

03-13-2002 13:35:57




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 Re: Oil change with flush in reply to Rodney Ivers, 03-13-2002 13:17:13  
Rodney... I am about to do the same thing with my Hydraulic oil. I posted the same question a week ago and was told to drain the oil. Flush the system with either Kerosene or Deisel Fuel. Then refill with the good oil. Makes perfect sense to me as many parts washers use Kerosene as the solvent. I am not sure if it is okay to do this process with the engine oil but I am sure someone else will post in regards to that. Hope this helps.

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