NV5600 Fluid Change, found Magnet how do we clean it?

[RobertMay]

So I finally got around to changing the fluid in my NV5600 transmission and NP271 transfer case today for the first time at almost 150,000k



Based on my readings in TDR, I used

• 3 qts. Valvoline Full Synthetic ATF+4 for the Transfer Case, and
• 6 qts. Mopar PN 4874464 for the NV5600 + 1 qt Pennzoil MTF for a total of 7qt. (overfill as recommended in TDR)

During this process I removed the PTO covers to inspect and clean inside as much as possible and found a lot of gray colored goo covering the floor of the trans, it looks like very fine valve lapping compound.
As I cleaned this crap out I found a magnet covered with around . 200 of this stuff. I was able to remove about half of it, but my fingers would not reach all the way to the other side and there is no access from the passenger side PTO cover.

Is there any kind of flush or cleaner to remove this gray stuff without damaging my transmission in the process?
And has anyone found a reliable replacement magnet that’s actually cleanable and won’t go swimming in the transmission?

• Foot note: The PTO covers didn’t have gaskets, only silicone, I cut some gaskets from high temp paper gasket material and silicone sealed them to the covers before reinstalling.
• The only reason for the quart of Pennzoil, dealer only had 6 qts. of Mopar Oil.
• Warning note: I bought a $4. 00 fits any gallon jug hand pump with a clear tube on the spout and a cool little clip to hold the other end in fill hole.
  The bad part was there was nothing securing the clear tubing to the spout except friction.
  So as I lay there under the truck pumping away at this thing, you guessed it, the tube popped off the spout while it was pointed right at my nose and eyes.
  That crap went straight up my nose and a little found its way around my safety glasses into my eyes. Not Good! I still smell Mopar fluid and it feels like water up my nose that won’t go away. Shower won’t even get it all out of my nose and eyes. #@$%!

I used a tight zippy tie to secure the tube to the spout and completed the job.
The moral here is always wear those safety glasses and look at both ends of the cool clippie thing hand pump before use.

Please let me know your thoughts on this job, anything I missed besides my chin?

 

[SMcGrady]

I can't really help you with your question, but I know how it feels to get a blast of engine oil up into your sinuses... Don't ask how I know... :{ The bad thing is, It can cause a nasty sinus infection so it is important that you flush it out as best you can. I bought a sinus rinse kit that worked pretty well for me. I used a saline solution as warm as I could stand and had to rinse about 7 or 8 times. Here is a link for the kit I got:



Amazon.com: Neilmed Sinus Rinse, 1 kit: Health & Personal Care



I bought mine at Safeway and I've seen them at Walgreens and Bartells too.



I'm sorry, but your story made me laugh because it reminded me of a similar outcome to a maintenance effort of my own :-laf



Hope you feel better and get your other questions answered too!



Scott

 

[Slow Six]

The magnet should just slide out. It feels like it is stuck peremantly but it is just the magnetic pull holding it to the case. It will come right out and than you can clean it and put it back in. As for the inside of the case I use a lot of shop towels and keep soaking and wiping until it is clean. The transmission is sloped down to the back so I raise the rear as high as my floor jack will lift and place jack stands under rear diff. This helps remove oil that is pooled at the rear of the transmission case. It takes a bit of time but at least I get a clean job. A bead of silicon is all the covers need for a seal. The first time I changed transmission oil I found a lot of junk in the oil. Subsequent changes the oil looks like the day it went in, but I still change it just because.

 

[RobertMay]

Thanks for the link i will try the sinus rinse, so far no infection has hit.

 

[Gary - K7GLD]

The magnet should just slide out. It feels like it is stuck peremantly but it is just the magnetic pull holding it to the case. It will come right out and than you can clean it and put it back in. As for the inside of the case I use a lot of shop towels and keep soaking and wiping until it is clean. The transmission is sloped down to the back so I raise the rear as high as my floor jack will lift and place jack stands under rear diff. This helps remove oil that is pooled at the rear of the transmission case. It takes a bit of time but at least I get a clean job. A bead of silicon is all the covers need for a seal. The first time I changed transmission oil I found a lot of junk in the oil. Subsequent changes the oil looks like the day it went in, but I still change it just because.

YUP - that magnet pad is like the thin ones used to stick various messages to refrigerators and the like - it comes out pretty easily for cleaning - but getting all the residue of oil and accumulated gunk from the bottom side of the gear train and the case is nothing to be cheerful about!



My transmission fluid had always appeared to come out as clear and nice as when it went in - so I was sorta surprised too at the abundance of fine grey residue in the sump of the gear case - shed material from the syncros I assume...



In any event, I next installed an aftermarket transmission lube filter kit to my own 5600, it has a small filter element inside, and there was enough space inside for me to add in another strong magnet to help trap other stray ferrous wear particles...



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