How to do a tranny flush?

[cumbewong]

I've never done one before and I searched around. Sorry, I'm a newb and I don't wanna fuck up or waste any money so I just want to make sure I'm doing everything right.

1) Take out drain bolt
2) Drain
3) Fill it in from the shifter?

Problem is, I don't know where or what part of the shifter because theirs multiple slots open.

Also, I read that if you buy a pump, you can use that to fill the tranny. But I don't know where to put the pump and where the fill plug is.

Does anyone have pics of either where to fill in from the shifter boot or where the fill plug is?

Any advice will help, Thanks Guys :wavey:

[s13drob]

you lift up the shifter plate and just pour it in. it all leads to the same place (the trans). Way easier than filling from the filler hole. BTW, its on the side of the trans above the drain plug

[veeates36]

Follow the drain plug going up from the left side.. Thats the filler hole. Good Luck

[cumbewong]

alright I think I'll do it through the shifter plate, do I need to take off any bolts?

thanks a bunch guys I'm starting to get an idea now

[s13drob]

Yea 6 bolts iirc. You'll see the shifter rod where the shifter fits into after unbolting and taking off the shifter plate. You wont be able to see how much you put in so just measure by the bottles and how much your PUTTING in.

[WagDatto]

There's 6 bolts holding on the shifter plate. Then the whole thing comes off. Then you can pour fluid in it. Reverse the process to put it back on, in case you're wondering.

Either do a search or take off the transmission tunnel cover and look for yourself. REALLY not that hard, especially on the 240sx transmissions. Go get your hands dirty and learn from your mistakes.

[ManoNegra]

I've always found it easier to remove the shifter (circlip) and pour gear oil from the comfort of the cabin.

[Dream240]

Go get your hands dirty and learn from your mistakes.

Well it's actually better to learn by listening to experienced others, than by your own mistakes. Mistakes usually cost money and headaches.

If you're still learning your way around a 240, I would do the tranny service by refilling through the fill plug, not the shifter plate. There's a few problems that I can think of for noobs.

1) You forget which bolts go where when you reinstall the plate (2 sizes)
2) You don't correctly reseal the shifter plate....now you have an oil leak and your cabin smells like gear oil all day.
3) You try to pour the oil in the plate opening only to spill fluid on your interior because your not used to working with fluids in your car...yummy gear smell.
4) You don't put the correct amount of fluid in it, mostly you end up overfilling it. Thus causing the oil to vent out your overflow tube and leak all over the place under your car, making you think your leaking oil all of a sudden....again yummy gear smell.

etc, etc.

My advice is to fill through the fill plug on the driver's side of the tranny. Just follow the drain plug up the left side of the tranny, you can't miss it, looks exactly the same as the drain plug. Also go out and spend the 7 bucks on a fluid service kit:

While we find your parts, please enter your ZIP Code at CSK Auto (http://shop.oreillyauto.com/productdetail.aspx?MfrCode=CSM&MfrPartNumber=36670&CategoryCode=3487)

Makes filling the tranny and diff. a snap. Clean and accurate.

GL

[I LUV MY S13]

it will be alot easier if you just take off the shifter...less chance of making a mess too

[slider2828]

Filller plug for sure. 1/2' wrench takes it right off....

By the way, don't drain until you know that you can fill. So remove stuff to fill before you drain the oil.... That way aren't SOL if something strips....

[g6civcx]

Go find a drain plug from another gearbox or diff. It's the same thing. The drainplugs are magnetic while the fill plugs are not. Both plugs are interchangeable other than being magnetized.

Remove the filler plug and throw it out.

Remove the shifer plate until you can see into the transmission.

Unbolt the drain plug. Drain fluid. Clean and retorque the drain plug.

Pour oil into the shifter hole until oil comes out of the filler plug.

Clean filler plug area. Torque filler plug.

Put interior back together.


It's really not that hard to take the shifter out. It's actually quite easy.


And this isn't a flush. It's a drain and refill. You don't need to flush a manual transmission.

[Wabash9000]

I just had it done at shell quicklube. I brought my own fluid in(amsoil) and they put it in. They even had to send a guy to go buy a pump and they still only charged me $20. Well worth having them do it for me see as there is 3 inches of snow outside.

[slider2828]

I just had it done at shell quicklube. I brought my own fluid in(amsoil) and they put it in. They even had to send a guy to go buy a pump and they still only charged me $20. Well worth having them do it for me see as there is 3 inches of snow outside.

How do you like AMSOIL? There is a tranny oil review thread in the chat... maybe you can chime in...