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I will have a look at my spare A clutch pack i think yours has been modified but may nt have drilled out the supply port to compensate.
I would personnal go back to the orginal set up the reason this mod was done was for the emission test method done in the states which caused a lot of A clutch failures due to leaking seals engaging the A clutch pack slightly and burning them out
Attachment 110971
Here is a better picture of this orifice i was talking about. I was talking to a another person about this and he thought that there may be a spring and ball in this orifice or in the port, This one has nothing. Do you have a spare intermediate plate that you could check for me?
The box is at my brothers place I will get him to have a look. I cant recall seeing any bleed holes on the clutch drum or piston but will get him to check.
Will check in the weekend the rental I moved into has stuff all lighting in the garage, the hole that is part of the mod is drilled into another part from memory it is drilled into the piston.
Might be able to look Thursday night if I get home at reasonable time leave in the dark and return in the dark.
Thanks for that. Weekend will fine. I know the feeling of leave in dark return in dark, I work 12.5hr rotating roster. I found the mod, and your right, it's a 0.045" hole in the pistonQuote:
Originally Posted by stevo
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Problem repaired. It is not a orifice, it's a air bleed and the ball is missing.
Thanks Stevo for all your help.
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Glad to hear you found it, most people would have given up, you will be an expert on the auto trans now
Thanks. I was over R&R of this box. Last removal took 2 of us 15 min to get outQuote:
Originally Posted by stevo
Worst thing is that valve is not shown in parts or service manuals
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Yes i know it is known that ZF do not give out a lot of info on their transmissions, i got a lot of my info from months if searching forums, and used some of the info from the BMW forums on stac heights on clutch packs etc.
