Gtr Attessa Hydraulic

[godzl1975]

Hi

Anyone know how hard or easy it is to change the hydraulic fluid for the transfer case for the attessa? mines sprung a leak where the hose that leads into the transfer case. Is it just a gasket that needs to be replaced and then the fluid that is lost replaced? Also the type of fluid to use? Anyone have previous experience and knowledge would be appriciated. thanks

[GTRsean]

the hose that goes into the transfercase actually just feeds pressurised fluid into the actuator that is mounted at the back of the transfer case. the transfer case has it's own fluid that you service, one drain plug and one filler plug. attessa actuator reservior should be in the rhs of boot behind liner.

[Josh]

Use nissan automatic transmission fluid - can't remember what is called sorry... Nissan will know tho..

EDIT* Just reread the first post - use the tranny fluid for the attessa reservoir - not sure what for the transfer case...

Edited December 7, 2005 by Josh

[godzl1975]

yeah but if i take that hose that is bolted on to the transfer case with two bolts out n replace with new gasket i presume...which fluid will come out? from the boot resevoir on driver side?

[Duncan]

Thats right, auto trans fluid from the boot resoviour. From memory theres no gasket just a screw in fitting.

[godzl1975]

Thats right, auto trans fluid from the boot resoviour.  From memory theres no gasket just a screw in fitting.

<{POST_SNAPBACK}>

ok kool thanks ...if iam doing that myself to change the fitting...i presume i will lose fluid from the boot resevoir so i may as well do a serive n drain and change it, but what kind of fluid do i use to replace? would nissan sell them??

ps: duncan i want to purchase the attessa controller of you if u have any available still..still waiting to get my other car ready so can use on that. cheers

[wrxhoon]

yeah but if i take that hose that is bolted on to the transfer case with two bolts out n replace with new gasket i presume...which fluid will come out? from the boot resevoir on driver side?

<{POST_SNAPBACK}>

First undo the pipe the goes into the rear of the transfer case ( 14 mm pipe spanner if i remember right ) , block the end of it so you don't loose fluid ( if you dont want to change the fluid in the boot ) , then undo the little plate where you say its leaking and seal it with a gasket or liquid sealant , reinstall the reverse order .

If you want to change the fluid in the transfer case undo the plug under it and drop it out then undo the filler plug on the side and fill until it starts coming out .

If you want to replace the attessa fluid , undo the little bleed nipple under the boot on the drivers side ( under the car where the reservoir is )and let it drain out . Fill the tank in the boot to max and then you have to bleed the system while you keep an eye on the tank to make sure it doesn't run low .

To bleed the system you have to activate the attessa pump , yopu will find that you have to find a plug under the dash , near the steering ( refer to the workshop manual as to what you have to do , not sure on the 32 , i cant remember ) .

Once the pump is going you undo the bleed nipple on the transfer case for a second and do up again , repeat until there is no more bubbles in it .

If you dont bleed the system the attessa wont work as its meant to , you have to bleed the system everytime you pull the g/box down to do a clutch as well .

You can use Nissan matic-d auto fluid in both , i dont , i use dextron III .

I hope that helps you .

[godzl1975]

yeh very helpful thanks. where can i get the dextron III. supercheap? LOL

[Beer Baron]

so gerry just confirming that ATF goes in both the attesa pump revovoir and in the transfer case itself? I'm due to do mine.

cheers.

Richard

[wrxhoon]

Correct Richard , same in both mate , but Nissan have the oil as well but they know how to charge .

Make sure you bleed it though , some people have trouble geting the screw plugs out so make sure you can undo the fill plug first before you let the oil out of the trasfer case .

[cobra_mark]

Remember not to mix dextron II & III. The Straight ATF or Matic-D from Nissan is the standard oil, the Dextron is unknown when it comes to its effect on the seals.

[Beer Baron]

Correct Richard , same in both mate , but Nissan have the oil as well but they know how to charge .

Make sure you bleed it though , some people have trouble geting the screw plugs out so make sure you can undo the fill plug first before you let the oil out of the trasfer case .

<{POST_SNAPBACK}>

yes! wise advice. i made that mistake once before, drained out a gearbox then couldn't open the farking fill plug. the oil still all drained out i guess as there was enough air coming in through the breather. eventually we got the filler open but it was a nervous moment.