Rebuilt 4L60E issues. Finally fixed!
To get the lower section of the trans out, there is a yellow snap ring around the input shaft. Once you get that out, the output shaft will most likely fall out the bottom.
Thread Starter
Staging Lane
Joined: May 2022
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TECH Junkie
Joined: May 2012
Posts: 3,051
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From: Poplarville, MS
@bbond105
i would also like to add what I found at 1500 to 2000 rpm with main unplugged
park: 240 max out
reverse: 250
drive: 240
i would also like to add what I found at 1500 to 2000 rpm with main unplugged
park: 240 max out
reverse: 250
drive: 240
Sometimes you can push the output shaft back into the case and get a little relief for the snap ring to spread easier. A good set of snap ring plyers can get it quite easily though.
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Staging Lane
Joined: May 2022
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I would also like to point out that there was no o ring before the pump on the main shaft. (EDIT: I believe the shaft I have doesnt have an o ring where I thought there would be one before its pre 98)
Last edited by atlsoldier27; Jun 23, 2022 at 04:30 PM.
TECH Junkie
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From: Poplarville, MS
Last edited by bbond105; Jun 23, 2022 at 10:21 PM.
TECH Regular
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since you have a new plate I would use "torlon" check *****, sonnax makes them. this will prevent future damage to new separator plate. also, there a bunch of valve body mods you can do as well as drilling the separator plate for quicker/firmer shifts. while some people like to feel the shift, it also clamps the clutch packs more, more longevity,etc. let us know when you are at that stage.
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From: Ann Arbor, MI
I see what looks like an o-ring on the far-left end of your shaft in the picture. That should be there and should be replaced on each rebuild and perhaps each time the converter is removed.
That is the only o-ring on the input shaft.
Did you find an o-ring under the pump slide?
That is the only o-ring on the input shaft.
Did you find an o-ring under the pump slide?
Last edited by mrvedit; Jun 23, 2022 at 10:49 PM.
TECH Junkie
Joined: May 2012
Posts: 3,051
Likes: 716
From: Poplarville, MS
I see what looks like an o-ring on the far-left end of your shaft in the picture. That should be there and should be replaced on each rebuild and perhaps each time the converter is removed.
That is the only o-ring on the input shaft.
Did you find an o-ring under the pump rotor?
That is the only o-ring on the input shaft.
Did you find an o-ring under the pump rotor?
Moderator: Yes. I have corrected my posts. Thanks.
Last edited by mrvedit; Jun 23, 2022 at 10:52 PM. Reason: Moderator confirmed the correction needed.
Thread Starter
Staging Lane
Joined: May 2022
Posts: 98
Likes: 4
I see what looks like an o-ring on the far-left end of your shaft in the picture. That should be there and should be replaced on each rebuild and perhaps each time the converter is removed.
That is the only o-ring on the input shaft.
Did you find an o-ring under the pump slide?
That is the only o-ring on the input shaft.
Did you find an o-ring under the pump slide?
Thread Starter
Staging Lane
Joined: May 2022
Posts: 98
Likes: 4
with me taking this apart, what part have a direct impact as far as first gear apply and reverse apply? As this is where I see the main problem, Im wondering what to look at exactly. if its multiple parts, or one that impacts both things.
TECH Junkie
Joined: May 2012
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From: Poplarville, MS
To answer your question
In 1st gear the forward clutch pack is applied and the low roller clutch is holding.
In reverse the reverse input clutches and low/reverse clutches are applied.
In 1st gear the forward clutch pack is applied and the low roller clutch is holding.
In reverse the reverse input clutches and low/reverse clutches are applied.
Thread Starter
Staging Lane
Joined: May 2022
Posts: 98
Likes: 4
I have a PDF printed of all the parts and fluid flows per gear. Does the pressure tap come directly from the pump or does it go through valve body before reaching the tap/gauge?
I am going to be making a tool at work for spring cages to check clutch pistons as well.
I know I'm asking a lot of questions, just trying to understand everything. I am a knowledge seeker and love learning new things.