Remote atf filter, screen filter??

PAT Ventures

Well-Known Member
Joined
Sep 21, 2009
Location
Wentworth, NC
I am going to be adding a remote atf filter when I add a remote cooler. I am struggling as to whether leave a screen filter in the sump or rip it out. What says nc4x4?
 
VortecJeep said:
I would leave it in the pan. You want the fluid to be filtered immediately before it goes in. Look at what is on the magnet in the bottom of the pan.
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If clean filtered fluid is goig into the pan where would any contamination be coming from?
 
If any particles come off the clutches, they fall into the pan with returning fluid from the trans internals, then it gets immediately ingested and fed straight to the pump without a filter. Leave it in and save having to drop the pan.
 
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The filter also acts as a pickup tube in most cases...so if you remove it, it seems like it would be far more likely to starve the transmission for fluid. If you starve it, I don't care how many filters you have, it's gunna shit the bed.
 
a_kelley said:
If any particles come off the clutches, they fall into the pan with returning fluid from the trans internals, then it gets immediately ingested and fed straight to the pump without a filter. Leave it in and save having to drop the pan.
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Execelent point. Thanks. I believe this is what I was looking for.

VortecJeep said:
What do you gain by removing the filter from the pan?
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If something is not needed in the system, why have it?

Croatan_Kid said:
The filter also acts as a pickup tube in most cases...so if you remove it, it seems like it would be far more likely to starve the transmission for fluid. If you starve it, I don't care how many filters you have, it's gunna shit the bed.
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Filter housing acts as the pick up. Removal of the screen would only aid the flow. Like gutting a catalytic converter.
 
I tend to over think things at times. A late night, a few beers.... The spin on filter I plan on using is rated at 28 microns. WIX 51662 The screen filter for my aw4 I could not find a rating. I found a 70 micron rating for an Allison transmission. So started the journey.
 
And much like gutting a catalytic converter, the flow gains are miniscule and it sounds like unnecessary work.

What is the flow rating on that filter? I'd probably be concerned with that as well. 28 microns should be a gracious plenty since the only filter it usually sees is probably way higher than that.
 
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Also might be worth checking flow numbers on the filter setup you plan to add to ensure sufficient flow so the filter doesn't burn up the trans due to insufficient flow.
 
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