So I tried to follow the intructions for a complete ATF replacement, but I think I did something wrong.
I bought a 20 liters can of Castrol Transmaz Z, the most recommended fluid for my transmision. (It's a 1991 Toyota Land Cruiser with a fully hydraulic automatic transmission)
That should have been more than enough (the FSM says that it has 16 liters I think).
The Transmax Z is a clear green colour, so it's good to do the flush as you can perfectly see when it starts to flow instead of the normal red ATF.
So this is what I did:
1) Removed the drain plug and put a scaled bucket underneath so I could see exactly how much was it coming out. I got exactly 5 liters this way.
2) Cleaned the drain plug magnet (got some grease and some tiny metal shavings but nothing to worry about).
3) Refilled the 5 liters from the dipstick hole.
4) Disconnected the return line of the cooler, so only a bit of old oil in the line from the cooler to the transmission was going to remain in there.
5) Routed a hose to a bucket and started the engine. It started to flow and got my brother to move the gearstick while that between gears.
6) When it had pumped 4 liters, it started to pump air, so I stopped the engine, refilled 4 liters and started to do it 2 by 2 liters from then on.
7) So I kept on doing the same: pumped out 2 liters, stopped the engine and then refilled 2 liters from the dipstick hole while my brother was moving gears.
I expected it to suddenly become green at one point, but when I had pumped out about 17 liters, I realized that it was gradually becaming less red and more green, but not suddenly.
So I guess it was getting mixed somewhere. At 19 liters, it was not completely green yet, but I stopped and reconnected the line cause I wanted a spare liter to be able to refill in case the level was low after finishing.
So I took it for a ride, came back and checked the level (ATF hot and engine running), it was a bit low, added half a liter and took it to the max part of the hot section.
I cleaned the dipstick with a piece of paper and it was a bit more green than the last that had left the cooler before reconnecting everything but still a bit of red left.
I put in the same paper a bit of the old red, a bit of what was in the dipstick and a bit of the new one that was still left in the can and the one from the dipstick is definetly on the green side, but not completely clean.
What have I missed?.
My theory is that maybe I shouldn't have moved the gearstick throught the gears, maybe that caused the old fluid to mix with the new instead of completely replace it?
I bought a 20 liters can of Castrol Transmaz Z, the most recommended fluid for my transmision. (It's a 1991 Toyota Land Cruiser with a fully hydraulic automatic transmission)
That should have been more than enough (the FSM says that it has 16 liters I think).
The Transmax Z is a clear green colour, so it's good to do the flush as you can perfectly see when it starts to flow instead of the normal red ATF.
So this is what I did:
1) Removed the drain plug and put a scaled bucket underneath so I could see exactly how much was it coming out. I got exactly 5 liters this way.
2) Cleaned the drain plug magnet (got some grease and some tiny metal shavings but nothing to worry about).
3) Refilled the 5 liters from the dipstick hole.
4) Disconnected the return line of the cooler, so only a bit of old oil in the line from the cooler to the transmission was going to remain in there.
5) Routed a hose to a bucket and started the engine. It started to flow and got my brother to move the gearstick while that between gears.
6) When it had pumped 4 liters, it started to pump air, so I stopped the engine, refilled 4 liters and started to do it 2 by 2 liters from then on.
7) So I kept on doing the same: pumped out 2 liters, stopped the engine and then refilled 2 liters from the dipstick hole while my brother was moving gears.
I expected it to suddenly become green at one point, but when I had pumped out about 17 liters, I realized that it was gradually becaming less red and more green, but not suddenly.
So I guess it was getting mixed somewhere. At 19 liters, it was not completely green yet, but I stopped and reconnected the line cause I wanted a spare liter to be able to refill in case the level was low after finishing.
So I took it for a ride, came back and checked the level (ATF hot and engine running), it was a bit low, added half a liter and took it to the max part of the hot section.
I cleaned the dipstick with a piece of paper and it was a bit more green than the last that had left the cooler before reconnecting everything but still a bit of red left.
I put in the same paper a bit of the old red, a bit of what was in the dipstick and a bit of the new one that was still left in the can and the one from the dipstick is definetly on the green side, but not completely clean.
What have I missed?.
My theory is that maybe I shouldn't have moved the gearstick throught the gears, maybe that caused the old fluid to mix with the new instead of completely replace it?