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Guest Message by DevFuse
 

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Need 3AT Hydraulic Circuit info


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8 replies to this topic

#1 NorthWet

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Posted 07 May 2006 - 09:20 PM

I would look this up in my FSM... but it is out on loan at the moment and not easily accessible. So...

The governor mechanicals on my wife's 3AT are shot (pinion bearings or gov drive gear need replacing), and I am trying to get it limping along as a semi-automatic: Remove governor driven-gear, lock the governor circuit in "D" and shift the selector for lower gears. This is until I replace the transmission on one of the 4 vehicles that I have that need it. (Probably no time until summer, and my wife really doesn't want to wait that long. :rolleyes: )

What I need to know is: What is the hydraulic circuit routing through the governor assembly when the road speed is high enought to select the "D" range (35mph or so)?

I have tried locking the valve assembly where I thought it should be at speed, gutting the valve assembly altogether (no restriction to flow exiting the valve), and sealing the 2 hydraulic circuit ports. None of these seem to work. I am beginning to think that rather than release pressure in the circuit (as I thought I remembered) it may need to route the pressure from one port to the other.

Anybody out there know or have an FSM handy?

#2 Cougar

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Posted 08 May 2006 - 01:00 AM

I have a manual for a '88 model but I won't be home until Friday 5/12 to look at it.

#3 NorthWet

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Posted 09 May 2006 - 04:05 PM

Bump-a-roo...
... for anyone with an FSM closer/sooner than Cougar's...

#4 NorthWet

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Posted 10 May 2006 - 08:58 PM

Bump...

#5 Cougar

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Posted 12 May 2006 - 11:29 AM

I will get home today and see if I can find out some info for you NW.

#6 NorthWet

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Posted 24 May 2006 - 10:49 PM

bump

#7 Cougar

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Posted 25 May 2006 - 02:47 AM

I am out of town again Northwet. I will be back again after Tuesday and see what I can do on this. Sorry I didn't back to you before.

#8 hooziewhatsit

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Posted 25 May 2006 - 11:25 AM

If this is the picture you wanted, let me know, and I can get do a better quality scan later today if wanted.

http://www.ultimates...o=11200&cat=855

(edit: should be able to save the picture locally, and zoom in more if needed)

#9 NorthWet

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Posted 25 May 2006 - 01:19 PM

Thanks to both of you. I will grab/enlarge the diagram when I get some time at home... looks like I can get the info I need from it.




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