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Discussion Starter #1
I looked at the internal diagram of this transmission(document ID 673291 in the on-line manual). Item 9 is a magnet that looks like it goes behind item 7 which is a countershaft bearing race.

Is this magnet supposed to attract ferrous debris? If so, it doesn't make much sense to have a magnet internal to the transmission instead of a magnetic drain plug.

Does anyone know why the magnet is there?

John Pease
 

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Discussion Starter #2
BrianK:
Your guess is more information than I had before. Thanks.

If the internal magnet is supposed to trap debris, then how can you really get the inside clean when you change the fluid? From my own ignorant perspective, I think this is not a good design. I hope this magnet has some other reason for being there.

When the car is stopped, a magnetic drain plug would have a good chance of attracting the debris that is denser than the fluid.

It seems llike the best approach would be to install a magnetic plug early in the transmission life so less ferrous debris will accumulate on the internal magnet.
 

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How about a pieces parts catcher when something goes south in the tranny, to prevent more (like something breaking off isn't enough!) damage?
just a guess
:cheers:
 

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Most turbine engines.....

.....have chip detectors, essential 2 magnets that can complete a circuit when a ferrous piece touches both. When the lite is blinking or stays on its time to land!!!!!!
 

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2 MAGNETS

Hi there,
There are 2 in the position that you speak of, and they are not on the counter shaft.
They are RTV adhered to the case in the space provided, which is not shown here.
Just so you know, and they will always be a little metal within the tranmission, which comes from metal to metal contact, syncro hub wearing, and other issues.
Besttoyou, c4c5:z:
 

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Discussion Starter #6
C4C5specialist:
Thanks for the education. Are these magnets attached to the bottom of the case? The illustration I found was not clear. Given what you said, it sounds like they are installed to trap debris. The bottom of the case is the best place.

John Pease
 

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Yes, you are correct, bottom of the case.
c4c5:z:
 
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