700R4 question, please help?
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 2,295
Likes: 14
From: Grand Sport #82
700R4 question, please help?
I have a problem with 88´vert that is leaking around this area on the gear box.
What is this part?
Can I just remove it, by removing the clip, and change the gasket?
What is this part?
Can I just remove it, by removing the clip, and change the gasket?
Race Director
Joined: Jun 2004
Posts: 13,960
Likes: 707
From: WI
From what I remember that is the 3-4 servo and it has a seal. The ring can be a bit of a pain to R&R. I had to drop the exhaust to work on it but didn't need the special cover tool as shown in the FSM.
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
Correct, it is the 3-4 servo. The clip can be removed with 2 small screwdrivers. There is a large 0-ring on the servo cap that is probably leaking and can be replaced. You'll have to push the cap in (wedge something against the tunnel) to relieve pressure against the clip and then work the clip out.
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
If the tranny is out, it's a piece of cake. The oil you see is from the outer 0-ring in the cap leaking. Take the cap off, clean the cap and the bore, install a new 0-ring with oil and pop it back in. Don't need to touch the springs, rod and pistons inside.
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 2,295
Likes: 14
From: Grand Sport #82
Cool, sounds like an easy fix.
Safety Car
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi
They make a tool for that ,it bolts to the bottom of the trans .You remove the 2 bolts that hold on the pan and the tool bolts just below the servo,it has a lever on it and you pull up on the lever and it pushes in the cap and remove it.
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Burning Brakes
Joined: Feb 2008
Posts: 988
Likes: 7
From: Sarasota Fl
Very easy to do off the car. I don't know about on the car. When mine was on the table, I just used a large, 24" Irwin quick-clamp to compress the spring and then removed the snap-ring (this was with the pan off though). Use vaseline on the new o-ring. If you can get a clamp to reach the other side, that'll be easiest. If not, try and wedge something against the tunnel, but use a wide piece of wood or something to spread the force more to prevent puncturing the tunnel.
-Jonathan
-Jonathan
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
I used a plastic "dead" hammer head wedged between the tunnel and the cap to push the cap in slightly while working the clip out. The tool sounds pretty good though. That cap can be pretty tight.