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correction
In the photo if the transmission drive-line, I mentioned that there were 6 clutch plates in the rear Planetary Gear unit, Well again my typing skills come through again.
In the front planetary unit there are 5 floating clutch plates with 4 stators
In the rear Planetary Unit there...
4th Gear Drawing.
The easiest to understand, since the Front and Rear Planetary Units are in (direct Drive)
Everything is spinning at engine RPMs (no reduction) 1 to 1 ratio
3rd Gear Drawing.
We know in this gear the Front Planetary Unit Band is TIGHT (reduction) and the rear Planetary Unit Clutch is ON (Direct Drive). The only reduction in this case is from the Front Planetary Unit.
Now when we go from 2nd to 3rd, we asissit the torus halves and the transmission...
2nd Gear Drawing.
As we can see the First Planetary Clutch is in Direct Drive, The whole unit is turning as one. Which means if you follow the color GREEN, the Main Shaft, both Torus Halves and the Driven Torus Shaft are all spinning at engine RPM.
We already know by now the Rear Unit Band is...
Note, automatic transmissions do not change gears as manual transmissions; all the planetary gears are always connected to the same components and are never disconnected. The operation that is happening in the transmission are: bands tightens or releasing, OR the clutch pistons are activated or...
Cutaway views of transmission
What I’m going to talk about next is just the basic shift pattern, I’m not going into detail about throttle settings, control valve setting or reduction gear operation HI / LOW. This is only going to cover the transmission from 1st to 4th.
The Players
Flywheel /...
transmission
Well a little TLC, it does look too bad for sitting in boxes 9 years, waiting for the parts from Memphis Equipment. this is what the transmission looks like when you remove the drain pan, access cover to the valve body, and reduction gear housing.
I'm still getting all my notes...
No problem we can do this any way you want, I never thought of doing this with other person is following along, good idea, I like that. When I rebuild one the first thing I do is to call Memphis Equipment go to the parts department and get a hold of John, tell him that you are doing a rebuild...
Thanks for the kind words Chris, you and everyone else who responded is going to make this project fun and enjoyable to do.
Also great news everybody! Going over to the storage shed today and I'll be bringing back two 885-FFg carburetors, a Delco-Remy distributors or two, the air pump, and a...
reverse
Throughout this project, when I come across a subject that has been debated or warned about, I’ll try to use the parts off the transmission or use a diagram such as this cut away of the transmission. So this topic is REVERSE.
Here’s the skinny how reverse works, and why not to use HI...
Ordered the gaskets and seals from Memphis equipment toady for the transmission. While I was on the phone with them, I asked about the check valve situation between the torus halves. Their reply was back in the 50's when Detroit came to Memphis equipment to hold a class on how to rebuild the...
Bob, After looking in the transmission manual TM 9-8025-2, I can not find anywhere it's says to leave these parts out. Since it's a check valve and spring, I don't know what effect this will have as far as oil pressure building up in the Fluid Coupling. My rule is this, even thought the Memphis...
Due to the number of individuals that has shown an interest, I'll start this project after the Holidays, this gives me time to figure out a lay out, get my notes in order and set up my work space for photography . Also I'll have to order all the gasket and seals from Memphis Equipment, so that...
Yes you're right Carman'
The m211 and 135 both use the same transmission, according to TM 9-8024 operational and organizational maintenance manual P22. Chapter 5, the only difference between the M211 and M135 is the rear brake drums assemblies and the cargo box design. other than that...
Sometime in the next few months, I’ll be rebuilding another M211 transmission. This transmission had the 1st and 2nd gear planetary carrier slip ring blow out due to someone putting the transmission an a lower gear to slow down the truck. REB was installed when this happened. I got this...