I guess maybe it was more than I bargained for, but it sounded easy to do... I have the 700R4 and got the vette servo to put in it, but I only got as far as getting the housing cover, and the "4th piston", c-clip, washer and spring out of it. After that, I find it impossible to get the "servo" and piston housing out, knowing there's another o-ring in there, but it is "flush" in there, and I have no damn idea how to get it out, since there seems to be no way to get any tool of any kind in there to pry them out. I'm confused, pissed off, and need to get it back together tonight... preferably with the new servo and such, but I'll put it back to original if I have to. Also... when removing the old parts, is there nothing that goes back in, other than the spring, washer, and clip? Some of the parts I have look a little different, but it's what was in the "how to" tech article... help me, please... thanks.

KAM

 

I just did this yesterday and ran into other troubles, I'll get to that later. basically you need to grad the fins on the housing and try to twist while pulling, I know....it's a pain in the *** but mine eventually came out. then the servo/housing/pin will pull out. Taking the c-clip off on the back of the servo was a pain in the *** too, but once i finally got that off, i put the big spring on the servo, then clamped the servo and the plate onto a bench and got the c-clip back in. then you can slide the piston and housing back in the trans, as well as the fourth plate. I ran into trouble (4 hrs worth!!!!!) trying to get the cover back on. when you pus it in, the o-ring gets snagged in the slot for the c clip. took much much prung to finally get it in. a word of advice...dont try to put the c-clip in until the cover slides in well further than the clip slot. good luck!!! This is what I'm talkin about when putting the cover back in
_
---| |--
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| < servo cover past c-clip slot
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[This message has been edited by CamaroZ_85 (edited April 22, 2001).]

 

Hey, thanks alot... I eventually got it out, but ended up having to lower the tranny to get it completely out... no big deal. I took it all apart and put it together with the new pieces and it's ready to go back in tomorrow. Yep, tomorrow... I decided to finish it up then. Once I got everything out, I wasn't confused anymore - it all made sense... I have one more question, though. In the tech article it mentions another spring that's supposed to go on some "nub". Is that the end of that shaft that goes in first? If so, it must have stayed in the case. I'll have to look tomorrow before I stuff it all back in. Man, I love this board - nothing like getting help when you need it "after hours"...

KAM

 

I removed my servo several times. The easiest way, IMHO, is to put a jack under the tranny pan and then remove the tranny crossmember. Slowly lower the end of the tranny down to give more clearance to remove the servo. Pay attention to the distributor because if you lower the tranny too far then the distributor will contact the firewall and put A LOT of stress on it. Anyhow, once you get the tranny tailshaft lowered enough take a big fat screwdriver and CAREFULLY and SLOWLY pry on the servo cover very very gently until you see the O-Ring. Now, take a pair of needlenose pliers and grab the O-ring and stretch it out. Once it is out far enough cut it. Now, take one end of the O-Ring and just pull it. It will easily slide away from the servo. Now the entire servo will basically fall out of the side of the transmission. The O-Ring should be replaced anyhow so I figure just cut that bastard and make your like A LOT easier. Once that O-Ring is removed the servo slides out with zero effort.

Tim

------------------
TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's with bigger cam, bigger stall, and bigger exhaust.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org

 

the spring on the nub is the innermost piece you will encounter when removing the servo. feel around inside and you'll find it. the cylendar that the servo pin slides into sticks out a bit, and the spring goes around there. you'll see...

 

Anybody have an answer for this? Thanks again...

KAM

 

That spring (orange in color) goes in first, it helps to keep the band off.
Hope This Helps!!!

 

So that spring goes in first, over that nub, before the piston and cover go on, right? I guess I never saw the thing because apparently it was never in there. I had the tranny rebuilt last summer, too, but once I got the piston assy. out of there, no spring came with it, and it was not inside the case. The only springs in there were the one that has the washer and c-clip on it, and then the one strong one that goes into the piston assy. There were no other springs in there, but as it is now back together, it is operating as advertised - same as before, with the improvement of the new servo, of course. I talked to Dana at Pro-Built, and he also told me there should be a spring in there. I'm sure I can get one up at AAMCO that rebuilt my tranny. Heck, my spring might even be in their parts bin...

KAM