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Guest Message by DevFuse
 

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tranny structure?


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8 replies to this topic

#1 Midwst

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Posted 14 August 2005 - 01:29 PM

Is the AWD Legacy tranny in sort of 5 different sections? From front to back, what are they? Of course #1 is torque converter, #2 is front differential, #3? #4? #5 is the tail shaft housing. Guess I need to know whats in sections 3 and 4 and where does the torque binding occur? In 3 or 4? Thanks.

#2 NorthWet

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Posted 14 August 2005 - 03:16 PM

... Guess I need to know whats in sections 3 and 4 and where does the torque binding occur? In 3 or 4? Thanks.

That would be section #5, by your designation. (In earlier transmissions/FSMs, Subaru refers to the sections by letter ID; and they don't count the TC.) All_talk recently posted a pic of the talishaft hosing separated fromt the rest, with the "transfer" clutch-pack visible.

#3 NorthWet

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Posted 14 August 2005 - 03:22 PM

Oh, and lacking an FSM or decent manual for the 4EAT, my educated ( :lol: ) guess is that your #3 contains the planetary gear set, band and maybe a clutch pack (doubt it), and the #4 would be the clutch packs. I forget which end the ATF pump in the 3AT is... it may be in your #3.

#4 Midwst

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Posted 14 August 2005 - 06:18 PM

what is in section 4? Is that where the duty C solenoid or other solenoids are located...if there is a problem in #4, what types of problems could there be? Strange question, I know. Humor me.

#5 RallyKeith

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Posted 14 August 2005 - 10:15 PM

what is in section 4? Is that where the duty C solenoid or other solenoids are located...if there is a problem in #4, what types of problems could there be? Strange question, I know. Humor me.



Duty solinoid C is also located in section 5 as you have refered to it.

Picture showing section 5 and the clutch pack are in this thread:
http://www.ultimates...ead.php?t=41148

The piece on the left is the rear case extension. The small gray thing is the C duty solinoid, and the clutch pack is the big brown looking thing.

#6 Midwst

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Posted 15 August 2005 - 01:24 PM

Looking at the picture, is the duty C solenoid actually bolted up to the tailshaft housing? If section 4 has a problem, what types of problems would it have?

#7 NorthWet

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Posted 15 August 2005 - 01:38 PM

Depends much on your definition of things. In the cited picture, I would consider the piece on the left side of the picture to be the tailshaft housing. Regardless of nomenclature the leftmost tranny section in the picture has the transfer clutchpack visible in its upper half, and the Duty Solenoid C in the lower right (as viewed in the picture).

#8 RallyKeith

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Posted 15 August 2005 - 01:42 PM

Looking at the picture, it looks like the duty C solenoid is in section 4. Because section 5 is the tailshaft housing. I don't think the duty C solenoid is in the tailshaft housing...am I right?



Um nope. Here. I took that pic and highlighted it. It's all in the back section.

Keith

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  • Attached File  4EAT.jpg   49.42K   433 downloads


#9 Midwst

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Posted 15 August 2005 - 01:44 PM

Okay. Is there anything relatively inexpensive to repair in section 4? Just humor me on this one. Long story. Actually, it looks like there are only 4 main sections...maybe output shaft itself is #5. wish I had a factory diagram




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