REAL TIME a440f help getting 👉🏽 manual swapped (7 Viewers)

[CJF]

Now that you have the background, here's the OD system:
View attachment 3774015
Starting from left to right,
the overdrive drum serves as a reaction plate for the overdrive piston, which clamps the clutches against the steels, and as a hydraulic reservoir, of sorts, for the piston;
the piston return spring's purpose is to remove the pressure on the clutches when they aren't engaged, so that they don't wear prematurely;
the clutches and steels serve to clamp the gear train and the flange and snap ring are the other end reaction members against which the piston pushes;
the one-way clutch provides a second means of selecting the various planetary gear items to "make" a gear ratio;
the overdrive planetary gear and the attached carrier with the planets, and the ring are what actually drives the wheels.

This is why I can't see anything in the OD set being the cause of your problem, because all that's happening is sliding along the axis of the central shaft, or not, and rotating, or not. Anything that would prevent that would have been obvious to the rebuilder (and, again, I'm giving him the benefit of the doubt here) and, presumably he would have replaced the bad part(s).

The function of the valve body is simply to send fluid to the proper piston in the gear trains so that the required gear is available, based on the output shaft speed.

Now you know all I know about this thing.

Can you identify how lock-up is achieved? There's got to be something in the tranny that says, "ok, time to lock the TC now" and then a mechanism for doing so.

 

[CJF]

Can you identify how lock-up is achieved? There's got to be something in the tranny that says, "ok, time to lock the TC now" and then a mechanism for doing so.

Pulled out my paper copy of 91 LC FSM (same tranny). AT section, troubleshooting subsection, roblem area "no lock-up":

First suggestion is "valve body faulty", second is "torque converter faulty".

 

[RevISK]

Did you ask him whether it's still possible that the TC not locking up is the issue? I'm guessing the answer to that is "yes", but that the fix is somewhere other than in the TC itself, such as in the valve body.

Yes I did and his very informed answer explained why it is probably in the Valve Body. OD/4th is where the torque converter locks up so if I'm not even getting to 4th then it has nothing to do with the TC. I assume you saw my reply to you above?

 

[RevISK]

Can you identify how lock-up is achieved? There's got to be something in the tranny that says, "ok, time to lock the TC now" and then a mechanism for doing so.

My understanding is once in 4th, the valve body governs the pressure to the TC to act as a foot would in a manual clutch, pushing the clutch and engaging the TC to lock it up. so it all happens in 4th/OD

 

[RevISK]

Pulled out my paper copy of 91 LC FSM (same tranny). AT section, troubleshooting subsection, roblem area "no lock-up":

First suggestion is "valve body faulty", second is "torque converter faulty".

Yeah, don't know man. My FSM is sorely lacking in the AT section. The AT FSM I have doesn't have a trouble shooting section.

 

[RevISK]

Thanks @Malleus

Read the AT FSM while I should be working

 

[Malleus]

Can you identify how lock-up is achieved? There's got to be something in the tranny that says, "ok, time to lock the TC now" and then a mechanism for doing so.

The shift lock (SL) solenoid.

 

[Malleus]

I've uploaded (3) FJ60/FJ62 FSMs for the group.

One is the Heavy Duty Chassis and Body repair manual (36262E). It contains, among other things, the 49 page AT section containing troubleshooting and on-vehicle repair procedures. There is also an excerpt from this manual, containing just the AT section, for use with the unit repair manual (the two could be combined into one pdf, if desired).

The third is the A440F Unit Repair Manual (36264E), containing the information I posted above, and lots of other bits.

You need both the Chassis and Unit Repair manuals, as the troubleshooting section is only in the Chassis manual and the actual overhaul procedures are in the unit repair manual.

The chassis manual was written for the FJ62 and has A442F focus, while the unit repair manual is for the A440F. Both will work together for either transmission. The difference is in the parts, not the operation.

 

[RevISK]

I've uploaded (3) FJ60/FJ62 FSMs for the group.

One is the Heavy Duty Chassis and Body repair manual (36262E). It contains, among other things, the 49 page AT section containing troubleshooting and on-vehicle repair procedures. There is also an excerpt from this manual, containing just the AT section, for use with the unit repair manual (the two could be combined into one pdf, if desired).

The third is the A440F Unit Repair Manual (36264E), containing the information I posted above, and lots of other bits.

You need both the Chassis and Unit Repair manuals, as the troubleshooting section is only in the Chassis manual and the actual overhaul procedures are in the unit repair manual.

The chassis manual was written for the FJ62 and has A442F focus, while the unit repair manual is for the A440F. Both will work together for either transmission. The difference is in the parts, not the operation.

You must be where I got the AT repair manual from then. I have the Chassis and Body manual but must've gotten it from another source because the AT section is like "Yeah, it has one."

 

[RevISK]

I've uploaded (3) FJ60/FJ62 FSMs for the group.

One is the Heavy Duty Chassis and Body repair manual (36262E). It contains, among other things, the 49 page AT section containing troubleshooting and on-vehicle repair procedures. There is also an excerpt from this manual, containing just the AT section, for use with the unit repair manual (the two could be combined into one pdf, if desired).

The third is the A440F Unit Repair Manual (36264E), containing the information I posted above, and lots of other bits.

You need both the Chassis and Unit Repair manuals, as the troubleshooting section is only in the Chassis manual and the actual overhaul procedures are in the unit repair manual.

The chassis manual was written for the FJ62 and has A442F focus, while the unit repair manual is for the A440F. Both will work together for either transmission. The difference is in the parts, not the operation.

I didn’t realize you JUST uploaded these.
Awesome sir, Thank YOU

 

[RevISK]

Laying in bed, listening to my brain eat itself, I was struck by something:
I may not be getting into 4th gear and then locking up there but I believe I am locking up in 3rd. That was the “4th gear” I could feel the transmission shifting into. The one that was very subtle remember?

I’m starting to understand why Georg says it’s not a torque converter problem and is something in the valve body.

It looks like the TC is working, I just lost 4th gear.
At least that is the current supposition.

This WS VB install thread by @RockDoc clued me in and drove me to research the Nomad VB more

Extreme Valve Body - just installed

After sitting in a box on my living room floor for around 6 weeks, my extreme valve body is finally in my truck and working. For those who aren't familiar, Wholesale Automatics is an outfit in Australia that does rebuilds and upgrades of Land Cruiser automatic transmissions (A440F, A442F, A343F)...

forum.ih8mud.com

 

[CJF]

Laying in bed, listening to my brain eat itself, I was struck by something:
I may not be getting into 4th gear and then locking up there but I believe I am locking up in 3rd. That was the “4th gear” I could feel the transmission shifting into. The one that was very subtle remember?

I’m starting to understand why Georg says it’s not a torque converter problem and is something in the valve body.

It looks like the TC is working, I just lost 4th gear.
At least that is the current supposition.

This WS VB install thread by @RockDoc clued me in and drove me to research the Nomad VB more

Extreme Valve Body - just installed

After sitting in a box on my living room floor for around 6 weeks, my extreme valve body is finally in my truck and working. For those who aren't familiar, Wholesale Automatics is an outfit in Australia that does rebuilds and upgrades of Land Cruiser automatic transmissions (A440F, A442F, A343F)...

forum.ih8mud.com

Ah!

I forgot you have a modified valve body with 3rd gear lockup.

You're going to need to drive your rig again to verify all our musings.

 

[RevISK]

Spoke with Georg again (he's a saint) and we agreed it is best to wait until we talk to Rodney to do anything... it's 4:28 am in Melbourne

 

[Bisonthecruiser]

Laying in bed, listening to my brain eat itself, I was struck by something:
I may not be getting into 4th gear and then locking up there but I believe I am locking up in 3rd. That was the “4th gear” I could feel the transmission shifting into. The one that was very subtle remember?

I’m starting to understand why Georg says it’s not a torque converter problem and is something in the valve body.

It looks like the TC is working, I just lost 4th gear.
At least that is the current supposition.

This WS VB install thread by @RockDoc clued me in and drove me to research the Nomad VB more

Extreme Valve Body - just installed

After sitting in a box on my living room floor for around 6 weeks, my extreme valve body is finally in my truck and working. For those who aren't familiar, Wholesale Automatics is an outfit in Australia that does rebuilds and upgrades of Land Cruiser automatic transmissions (A440F, A442F, A343F)...

forum.ih8mud.com

I'd agree that it's not the TC.

 

[RevISK]

I'd agree that it's not the TC.

Could you expound on this?
I’m hoping this thread will benefit someone down the road.

 

[RevISK]

Heard back from Rodney. He had some advice that I am sorry To say I am going to hold onto until I see if it works or not.

otherwise, I started buttoning things up before the rain. Using the airbnb available tools.

All 8mm bolts were loose on the gold plate here. Very loose.

 

[RevISK]

Welp, transmission is toast.
Less than 1,000 miles and it is fried.
No engagement in any gear, just a buzzing/rattling/ not quite grinding sound when put in R, D,3,2 or 1.

Rodneys suggestion was, you guessed it, the Party Trick. Did that, a couple minutes later, tranny poops the bed.

Ugh...

 

[tmxmotorsports]

Welp, transmission is toast.
Less than 1,000 miles and it is fried.
No engagement in any gear, just a buzzing/rattling/ not quite grinding sound when put in R, D,3,2 or 1.

Rodneys suggestion was, you guessed it, the Party Trick. Did that, a couple minutes later, tranny poops the bed.

Ugh...

Well crap man this is why everyone with a 62 almost always goes with manual transmission swap.

 

[yotadude520]

Welp, transmission is toast.
Less than 1,000 miles and it is fried.
No engagement in any gear, just a buzzing/rattling/ not quite grinding sound when put in R, D,3,2 or 1.

Rodneys suggestion was, you guessed it, the Party Trick. Did that, a couple minutes later, tranny poops the bed.

Ugh...

I'm not sure what your budget is, but I think I read that you weren't able to do a H55F swap yet.

If I were you and you don't mind a bit of labor, go find yourself an H42 from a 60 and swap it in. They're all over the place and can be had for almost next to nothing.

That way when you are ready to do the H55F you already have done the manual conversion and are ready to go. Maybe you'll find that the H42 with the 4.11's is pretty serviceable and you can save up for an H55F a little longer.

Either that or you take a shot rebuilding one of your cores.

 

[Cruiser Cult]

Welp, transmission is toast.
Less than 1,000 miles and it is fried.
No engagement in any gear, just a buzzing/rattling/ not quite grinding sound when put in R, D,3,2 or 1.

Rodneys suggestion was, you guessed it, the Party Trick. Did that, a couple minutes later, tranny poops the bed.

Ugh...

Really sorry to read this. I was hoping there would be a fix. Is there any kind of warranty on this from Rodney? Seems like it was very new valve body and it toasted the transmission?