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Old 07-02-2012, 06:02 PM   #1
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Changing oil in Tranny

Need a little help from anyone that has drained flluid from a MD3060.

Does the drain take a special tool or will a 3/8 drive Square do??

The plug is kind of frozen and I am afraid I will strip it if I am not careful.

So my questions are

Do I need a special tool?

How do you unfreeze the plug?
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Old 07-03-2012, 10:23 AM   #2
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I use the square drive of the socket wrench. You could try spraying PB Blaster on the plug.
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Old 07-03-2012, 11:21 AM   #3
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Thanks Bob. I sprayed some PB last night and then again this morning.

Will try to loosen again in about an hour. This time I will use a bigger wrench.

When I first looked at the plug it looked like someone had trouble before me so my heart sank a little. I did not use a lot of force and thought I would let the PB loosen it up before I try again. If I can get it off I will run down to Tampa and get a new one.

So I will either get it off or finish it off. Already looking at some transfer pumps to get the old oil out. It is about 4.9 Viscosity so I have to get a lot of it out somehow before my Branson Trip.

Appreciate your response
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Old 07-03-2012, 02:18 PM   #4
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Ok, it is loose. PB is some great stuff but I hope it does not get into the tranny.
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Old 07-03-2012, 04:53 PM   #5
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Great that you got the plug loose and/or out. I doubt a drop or two of PM would have any adverse affect if it gets into the trans plug area but you can take a rag and dab it out. If it's like my transmission I suspect you'll be adding about five gallons of trans fluid and that would really dilute a drop of PB, no?
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Old 07-03-2012, 05:32 PM   #6
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Hope so. I had two new 15 gallon containers and when I got the plug off the flow went so fast it overflowed and when I reached for the plug it went flying so I had to hold my finger on the drain while I changed pans so now it is slowly draining. What a mess. I used to do this for a living but I guess when you get old you still know what to do but you can't do it fast enough. Should have just cracked the plug to drain it Maybe someone can save a mess that reads this. For now it LOL

Plug looks ok so I guess I will use it. I have to change again since I had dexron so I will change again later to flush out all the dexron but at least my viscosity will come up to acceptable levels. Will replace the plug at the second change. I cannot believe someone would tighten this plug that much. It only requires 18-24 lb ft which is not a lot.

So I will put the filters in it next. Hope those bolts are not frozen. Since I have a 2 inch sump I expect to add 17 quarts of transynd. Bought plenty. Will put in 17 and then warm it up and check it.

Thanks again for the suggestions.
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Old 07-04-2012, 10:46 AM   #7
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Does the Allison in your Endeavor have the electronic transmission fluid check capability? On mine I push the up and down arrows on the transmission selector at the same time for a few seconds then wait through a count down for it to check the lever. The fluid has to be hot.
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Old 07-04-2012, 02:18 PM   #8
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Yes I have the electronics for level checking and also including diagnostics.

My manual stick is for hot only. After I run for about 10 minutes I check it and it usually reads full
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