Just a square cut seal. We set out to build an E40D that was reliable, could withstand torque and most of all it had to be built at an industry low price. There is this little steel ring that sits on the piston, it is to prevent the spring plate from wearing through the aluminum apply piston. The center piece is called the overdrive sun gear. Just start it and tap the snap ring down. I've never rebuilt a trans before, so I'll probably be in way over my head. This will help identify parts that look similar.
Lip towards the fluid to hold the pressure in. If that checks out I am going to replace the oil pump, as it might just be weak with all the new clutches and then I will start changing the electrical…. It shifts hard through all gears, and when you reset the computer it has a shudder. The overdrive side has a retaining spring and snap ring. One side is to apply the intermediate, the other is to apply the overdrive clutch.
This design uses a bushing and the new design uses a bearing. Now the E40D is best left to a professional. Has anybody done this or can anyone recommend a god performance rebuild kit? I would check the forward clutch assemble first. Install the sun gear assembly. I tore into my first e4od and had to tear into it 4 more times before i got it to work correctly.
Before tear down, it is nice to have codes, but more importantly if you can hook up a pressure gauge to the case and test pump pressure. Then put it back together. Take your time as the seal rings have to compress as they go into the direct clutch drum you don't want to force it and break one. We installed vise grips, slid up against the bolt head. You will also notice this groove does not go all the way across the bushings like others. Take your time, there are many that are close but only one that is right. Remove the accumulator and check the bore for wear marks.
I had 4 in this set. Hopefully your frictions have been soaking in fresh fluid for a while and are ready to go. Grab that and put it someplace safe. Pull the 5 bolts holding the overrun clutch race. Otherwise there will be no lube and burn it up.
I was wondering if you could help me out. Pull the roll pin out. So if the fluid looks dark then the clutches have been wearing away. This is the overdrive sprag or one way clutch. Don't give up, stay focused on one step at a time. It looks like you've been a real help to a lot of people in this forum.
Now we need to compress the intermediate clutch spring. In this case the converter will need to be replaced. The transgo shift kit has an updated seal for this. You should hear a solid thud, no hissing or leaking. . That needs to be done now.
The filter hold the pump in, but there are 3 bolts, 2 that hold the center support and another that holds the overdrive clutch. The orientation, or basically the groove in the bushing needs to be at the bottom of where the shaft would ride, so check the old one and make sure the new one is clocked the same. You can see a hose clamp around the pump housing. Not a fluid issue as I checked that and not a connection issue as I checked those as well. I know there are rebuild kits for the E40D, but I was wondering if there are performance rebuild kits. I've never rebuilt a trans before, so I'll probably be in way over my head.
Then backing plate and snap ring. Also notice the two chisel marks at the top center of the bushing in the picture. This is where I realized my camera was broken. Late 1989 had 10 rubber and 1 steel, total of 11 1990-1995 had 9 rubber balls 1996 and later has 8 This is the spring underneath the steel check ball that fell out when we pull the solenoid body. The bolt holes leave room for lots of play. A few tugs and the pump is out.