Tranny Leak

[Glacier991]

If you do pull it and decide NOT to rebuild it and just replace the bell as I described, do 3 things - you will thank me later. 1) REPLACE the Servos (OD and intermediate) while you have it out, and adjust the bands afterwards. 2) Up the OD servo size to a "ZC" size (not available when the A4LD was made). and 3) as Brooklyn Bay suggests, replace the pilot in the flexplate.

 

[BrooklynBay]

You could drill the weep hole in the bellhousing to make it bigger. This acts like a drain back system to help prevent the seal from blowing out as easily.

 

[colindo94]

Thanks for the machine shop...Is it the one on Market Blvd in Sac? O and How many servos all together do I need to get? And I've been searching for servos and can't seem to find one that is the size "ZC"

 

[BrooklynBay]

The ZC is the largest size. You would need 2 servos, and 2 matching covers with O rings.

 

[colindo94]

OK thats what I thought. SO I want the stock size servo for one and the bigger servo for the overdrive? And the covers and o rings are the same as stock?

 

[colindo94]

Check out these parts and tell me if they look good...
For the bigger servo (ZC)
http://www.transmissionpartsusa.com/4R44E_4R55E_servo_piston_ZC_1997_on_p/230-00023953a.htm

Two of these covers for each servo....
http://www.transmissionpartsusa.com/A4LD_4R44E_5R55E_Servo_piston_cover_2_10_p/230-000023970.htm

For the other servo piston...
http://www.transmissionpartsusa.com/A4LD_4R44E_4R55E_Servo_piston_EB_1992_on_p/230-00023952e.htm

Tell me what you think.

 

[ricaandjohn]

I noticed a pretty large leak coming from between were the tranny bolts up to the block. It started out of nowwhere and I havn't noticed any difference in driving. No change in shifting. What could this leak be and how can I fix it. Any ideas.

I think its called a rear main seal leak...my husband just got his fixed...you have to drop the tranny.

 

[colindo94]

Alright heres a partslist that I've come up with...tell me what you think. I got it all from transmissionpartsusa.com
servo piston 23952A (AA-AB) $6.40
servo cover 23970 (AA-AB) $9.47
servo pistion 23953A (ZC-2.314) $9.52
servo cover 23970AG (CZ 2.314) $7.12
servo cover o-rings 23264A $.55
Transmission pan gasket 18 hole 23141D $2.18
pump seal 23401A $3.35
Flex plate to crank spacer 56000-cs6 $8.39
A4LD manual 23TM00 $15.28

I also have to get the new bellhousing with the bushing turned inside at Omega that Glacier911 suggested.

 

[Glacier991]

Check out these parts and tell me if they look good...
For the bigger servo (ZC)
http://www.transmissionpartsusa.com/4R44E_4R55E_servo_piston_ZC_1997_on_p/230-00023953a.htm
YES THAT IS THE RIGHT SERVO FOR THE OD
Two of these covers for each servo....
http://www.transmissionpartsusa.com/A4LD_4R44E_5R55E_Servo_piston_cover_2_10_p/230-000023970.htm
THIS IS THE SERVO COVER FOR THE INTERMEDIATE SERVO, YOU DO NOT NEED THIS YOU ALREADY HAVE ONE IN THE TRANNY
For the other servo piston...
http://www.transmissionpartsusa.com/A4LD_4R44E_4R55E_Servo_piston_EB_1992_on_p/230-00023952e.htm
WRONG. THIS IS AN EB PISTON> YOU NEED A ZC PISTON AND AN AB PISTON>

Tell me what you think.

See above. PLUS YOU NEED A ZC COVER.

 

[BrooklynBay]

To add to post #28, they have an A4LD update book which is nice to have in addition to the rebuild manual listed above.

 

[colindo94]

Thanks for the help I will order up the parts and tell all you how the update went.

 

[Glacier991]

Let me know and I can loan you a tool that maekes replacing the servos MUCH easier.

 

[colindo94]

Yea that would be great...anything that will make the job any easier. Thanks for answering all my questions.

 

[Glacier991]

NP, that's what I do here.

 

[colindo94]

So what size should I drill out the weep hole in the bellhousing.

 

[BrooklynBay]

I have to check, but I think it's 5/16".

 

[BrooklynBay]

It took about a half an hour to search through Glacier991's A4LD rebuild diary to find the post: http://www.explorerforum.com/forums/showpost.php?p=919392&postcount=36. He recommends starting with a 1/4" drill bit, and ending with a 5/16" drill bit to bore the drain back hole.

 

[colindo94]

Thanks for the research...really helped me out. The parts should be here soon and I will start the project. I will tell you all how its goin. thanks

 

[colindo94]

Alright...so I started the teardown. I droped the tranny and this is what I ended up seeing. First off the Torque converter didn't come out with the bellhousing. It stayed up with the flywheel. So how do I get the torque converter out so I can get to the flywheel spacer and replace. Or is this even worth doing. Also I replaced the overdrive/Intermediate servos with the new ones. What do I have to do to adjust the bands like it was said before. I got the old servos out and installed the new ones with the snap ring and all. So is this all I need to do with them? Just a little confussed....

Next is pulling off the pump assembly. The allen bolts are soooooooo tight and I can't break them loose. I will try latter just tired.

Glacier991 Will Omegas tool alighn the pump assembly? And does the new housing come with the seal aleady installed with the bushing. Or will I have to install the new seal myself?

Help me out as fast as you guys can because I need to get this done as fast as I can.

 

[BrooklynBay]

Check my thread on adjusting the bands: http://www.explorerforum.com/forums/showthread.php?t=158160 Are you using a handheld allen key, or an allen hex socket with a 3/8" drive to remove the pump bolts?