Hi,
Like the title says, what size hex key do I need? I am planning fluid change and want tools ready to go.
Thanks, I searched and could not find,
Dave

 

Dave,
I believe it is 5 mm.

 

Thanks, Craig,
That should be no problem I was hoping it is not a really strange size.
Dave

 

Dave,
Wear your least favorite shirt for the job. No matter how diligent I tried to be, it was always messy.
Have Fun.
Craig

 

Craig was correct. Both the drain plugs, trans pan and converter plug are 5mm allen on my 84. I got them both out and will leave to drain a few hours. I also cracked the trans cooler line at top of radiator, per Bill Ball's suggestion, to help drain the cooler and lines. The dirty part will start with dropping the pan.
BTW Roger's service kit gave me one copper and one aluminum seal for the drain plugs. Which goes where? Both were aluminum when pulled.
Thanks for the help.
Dave

 

Boy, I don't know that one Dave.
They look kind of 'aluminimish', so I would would think to place the aluminum one on the torque converter. Maybe someone else will chime in for confirmation.
Craig

 

Dave,
Remember, bring pan up evenly. Pan bolt torque is 8 Nm. I've always started with the center ones first when torquing. ATF filter bolt torque value is 4 Nm. TC and pan plug values are 14 Nm.

 

use the copper seal for the TC,
and the aluminum for the pan

 

Well, there ya go !

 

Uh-oh I did this job recently and didn't notice that the new crush washers (in Porsche service kit) were different!

So 50/50 chance of having got it wrong...

They both looked same material (aluminium)

Now I check PET they have different part numbers, but I am pretty sure they came in same bag in the tranny service kit?

 

if its not leaking dont worry about it
BUT if you have a choice copper seal to the TC ,
and aluminum seal to the pan.

 

Thanks MrMerlin - it has been dry as a bone since oil/filter change

 

Hi Stan,
Thanks for the info. I went ahead and put aluminum at both seals, like before. This was before I got your post. Both TC and pan are steel, so I guess it's about softness. Like I said, both of my old seals were aluminum, so hope this will work. If not, will drain TC and switch seal.
BTW the trans seems to shift a little quicker and smoother. I had some whine and groan while I was filling up the TC and rest of the system, but that is nice and quiet now.
Thanks for all the help,
Dave

 

Auto trans filling procedure
fill the pan,
start the engine run for about 20 seconds, then shut it off.
Refill the pan run for 20 seconds, then off.
Refill the pan run for 20 seconds, then off.

Do this till the level stays in sight of the reservoir,
then run the engine in park,
final fill to the mark with the engine running, cycle through the gears.

NOTE before going back to park,
put the trans in neutral so the wheels will stop turning ,
even though you should be holding the brakes on.

Then put into park, reason being if you should put the trans back into park with a wheel spinning it could shear off the parking pawl. NOT good

Note drive the car for a few miles then recheck the level,
as it will probably drop some due to the lines bleeding out any remaining air.

 

Thanks, Stan.
That's exactly what I did. Just goofed up the copper seal.
Dave