My ATF (Automatic Transmission Fluid) flush & fluid change - how to

[StewartIngram]

Today I've done the full ATF change as detailed above, thanks for the info. Car has only done 220k and had one part change about 3 years ago so I think it was time! It was suffering from a bad thump between gears on occasions, and sometimes a slip before engaging top. I haven't been too far since changing the fluid, but overall it does seem better. If need be I'll attack the solenoids (have a full set spare) and hydramount.
One thing though, I spent ages trying to get the push-on connector free from the oil cooler, without success. Nearly broke it in the process so gave up there. I traced the hose back up to a large union (like a brake pipe connector). A 19mm spanner here soon got it off, and the hose of course was easy to direct into my bowl on the floor. No need for a garden hose!

Stewart

[Caskin]

Originally Posted by beinet1

Hi all,

I have just done my second ATF flush & fluid change after a cracked reverse piston repair and decided to take a few pictures and write this how to. As many of us know, is that only 50-60% of the ATF fluid will be replaced during fluid change according to the procedure. This how to shows how to replace nearly all the 8 liters in the system.

1: Jack up the left hand front wheel and secure the car on axle stands



2: Remove the engine undershield and locate the gearbox drain plug. Its the large hex plug at the gearbox underside.



3. Place a large pan under the gearbox, remove the drain plug and let all the fluid drain out. Measure the amount drained from the box for later reference. It shall be something like 3-4 liters.
Remember to use nitirle or latex gloves to avoid skin contact with the ATF fluid.



4. Inspect and clean the magnet in the drain plug. If you can find swarf here, it migth indicate gaerbox problems. Put drain plug back into place.



55. Now, locate the two lines between the gearbox and oil cooler. Remove the lowermost hose from the oil cooler by pushing the black collar on the inner end of the oil cooler tube into the connector to release the connector`s retainer tabs.



6. Put a hose on the stud on the oil cooler and put the other end into a container. Preferably one where you can measure the amount of fluid pumped out.



7. Remove the air filter box and locate the filler plug on the top of the gearbox. Remove filler plug by pulling it out and put a clean funnel in the filler opening. Add 4 liters of fresh ATF fluid to the gearbox.



8. Here comes the trick. Get an assistant to start the engine and let it idle in Park. The gearbox will now pump out the oil in the converter and oil cooler into the container. The fresh oil in the box will displace out the old oil. Watch the level into the container and stop the engine when 3,5-4 liters are pumped out. You will only need 10-15 seconds running of the engine to do this.



9. Remove the hose and container, put the hose from the gearbox back onto the oil cooler. Lower the car back down to the ground. Make sure it is level.

10. Measure the total volume drained and pumped out of the gearbox. It should be something like 6-8 liters. You have allready added 4 liters to the box, so add more fresh fluid to a total volume the same as the 6-8 liters drained out + approx 0,2 liters. Put the filler plug back into place.

11. Locate the small level plug under the gearbox. A 5mm allen key shall fit into this one. Place a low container under the gearbox.



12. The fluid level shall now be set according to the Rover procedure. Start the engine, apply the brake and go through all gears/shifter positions one by one and stay in each position for minimum 3 seconds. Return to Park. Let the engine idle until the ATF fluid has reached 35-40 degrees C. The procedure calls for a T4 to check this, but I think it will be sufficient to check the temperature at the aluminium block where the hoses are connected to the oil cooler. When this feels warn, the temperature shall be OK. Remember to put the AC system to OFF when doing this so the fan does not run.
Set the level by removing the level plug and let the fluid drain until it just "dribbles" out of the box. Put the plug back into place, stop the engine and put the air filter box back into place.

If you take a look at the fluid drained out, it will tell you how the fluid looks/smells after the replacement.



Disclaimer:
You are responsible for any work or modifications carried out on your car and you undertake any such work at your own risk.
The 75 and ZT Owners Club nor the original author of this How-To can be held liable for anything that may happen as a result of you following this How-To.

Followed this to the letter when I carried out mine, so easy and effective Thanks

[benrolljagrover]

Beinet 1

I know this post is very old but I've not long been a member. Given photobucket's quest for even more money now, any chance of reposting the pictures using another programme as they no longer show.

Thanks

Steve

[beinet1]

Hi all,

Glad to see that this thread is still useful for the forum members. It is a while now since I wrote it. I have to admit that I do not visit this forum often any more after my daily driver was sold. I still have the V6 and enjoy now and then on lovely days.

I will see if I can get the pictures back for you all!

P.S.

Thats bad. I am not paying Photobucket $6/month for an upgraded membership. Are there any other photo sharing services that works well?

[clf]

Originally Posted by beinet1

Hi all,

Glad to see that this thread is still useful for the forum members. It is a while now since I wrote it. I have to admit that I do not visit this forum often any more after my daily driver was sold. I still have the V6 and enjoy now and then on lovely days.

I will see if I can get the pictures back for you all!

P.S.

Thats bad. I am not paying Photobucket $6/month for an upgraded membership. Are there any other photo sharing services that works well?

would a PDF of your efforts give you some time?

[beinet1]

Originally Posted by clf

would a PDF of your efforts give you some time?

Thanks CLF, That helps a lot!!

I am not sure what I will do. What photobucket is doing is blackmailing!! It pi$$es me off!! I have shared hundreds of photos of my experience via photobucket on several forums which is now unaccessible!!

[clf]

Originally Posted by beinet1

Thanks CLF, That helps a lot!!

I am not sure what I will do. What photobucket is doing is blackmailing!! It pi$$es me off!! I have shared hundreds of photos of my experience via photobucket on several forums which is now unaccessible!!

it seems to have affected a lot of help pages such as yours on this and other forums.

I would save some of the how tos to allow me to view them whilst at the car, and accidentally discovered I could save them as PDFs using google's chrome browser. Which meant I could view them easily using my tablet or phone.

To save as a PDF in Chrome, right click on a blank area of a web page, select 'print' (ctrl +p will also work), then in the dialogue that opens, click on change, and 'save as pdf' will be an option. Select that, and the rest is obvious

[75driver]

Originally Posted by clf

would a PDF of your efforts give you some time?

Thank you beinet1 for this "how to", and CLF for re-posting as PDF with pictures.
Well, I thought I'd give it a go, seeing as the ATF in my tourer was changed by previous owner, 45k ago, at 30k miles.
I didn't previously have any problems with gearbox as such, but just thought I should do the change, as father in law was going to do his, and wanted to watch a guinea pig first.😨

Out of curiosity, I 1st checked the fluid level, before draining anything, and approx 200ml came out.
It looked like this:😱

That made up my mind to follow beinet1's procedure, (almost) to change as much as possible, rather than the "normal" drain procedure.
I didn't take temperature measurements at any stage, but done all drain/ level checks, within 20 mins of taking out for a run, and getting up to "normal" temperature, say 84C.

I used this, purchased from rimmers...
.
OK, we probably all know what it looks like, but for comparison with photo 1, it looks like this:


Fluid amounts at various stages were as follows:
Level plug overflow: 200ml

Drain: 3050ml
Fluid in: 3500ml
Fluid outvia cooler). 3050ml (till it stopped pumping).
Spillages, 😱: 600ml,
yes, there were some😬, mostly caught (500ml) but made allowance for 100ml escapees.
Fluid in: 3400ml

So excluding initial overflow from level plug, that was
OUT: 6700ml
IN: 6900ml

At that point, there was no sign of anything coming out of the level plug, so added another 100ml, and then about 50 ml came out.

Hardest bits:
- separating the collar on the oil cooler
- having to rig up a variety of hoses and tun-dishes
- having the patience to fill the thing... it took an age.😤

Having only driven the 15mile home from FIL house, the only difference I can note is that it doesn't change down a gear, as readily as before.
Nothing major, just different, but then again, it was fine before the change. 🤔

So, my only query to put out there.......
What do you make of the colour of the fluid that came out, seeing as it has only down Approx 45k.?

Previous owner was a gentleman, so I've no reason to assume it wasn't changed, or that correct spec fluid wasn't used.
(He had posted a bit about using N402 spec, back in the day.)




Sent from my iPad using Tapatalk

[Fusilier]

This is a great how to, and thank you Beinet1, i followed your procedure and once everything ready did the change in about 1 - 2 hours, and the stuff that came out was also black like think treacle, so not sure if it has every been done. I just need to finish off by checking the levels, I reckon that i have put in about 7 - 7 1/2 litres of new ATF, so think I got most of it out.

One very small question as I am was lying on my back in the man cave, where exactly is the 5mm allen key check level, as I cant seem to find it

Many thanks

Stuart

[Atcchus]

Originally Posted by Fusilier

This is a great how to, and thank you Beinet1, i followed your procedure and once everything ready did the change in about 1 - 2 hours, and the stuff that came out was also black like think treacle, so not sure if it has every been done. I just need to finish off by checking the levels, I reckon that i have put in about 7 - 7 1/2 litres of new ATF, so think I got most of it out.

One very small question as I am was lying on my back in the man cave, where exactly is the 5mm allen key check level, as I cant seem to find it

Many thanks

Stuart

Check the picture in the pdf


http://download849.mediafire.com/5rf...ic_Gearbox.pdf