4WDarren

1990 4Runner, 22RE, G58 5spd.

Currently am in the process of doing my clutch, rear main seal, etc.. Not my first time doing this job (had the tranny in my '84 pickup in and out many a time), but it's definitely been the worst removal I have experienced... and this is with all the right tools! (good tranny jack, etc..)


I can only get it to slide back about an inch and a half or so (can just see the flywheel teeth), and then it stops. I should mention that even to get the tranny to seperate this much took some good force (prying between the bellhousing and engine-transmission stiffeners). There's lots of freedom for the tranny to move up/down & fore and aft at this point, but it is obvious that something is hanging up in the center somewhere. Even with two of us pulling on the tranny, it does not budge any more.

Is it possible that the input shaft is somehow worn or siezed in the pilot bearing, preventing any further removal?

abecedarian

Since the pilot bearing is about 3/8" thick at most, having 1+ inch of motion means it's more likely damage to the input shaft could keeping the clutch disc from sliding off the input shaft. Or something else is interfering with motion... shift levers, cables, electrical, clutch slave cylinder piping, drive shaft still connected? Not saying those are the problem but sometimes we all get scatterbrained and overlook the obvious.

If nothing else is the issue, do you have access to the pressure plate to flywheel bolts? I'm thinking you can rotate it around and loosen the pressure plate from the flywheel.

4WDarren

Yeah, I had checked and double checked to make sure everything was disconnected and clear...no problems there. Unfortunately I can't quite get to the pressure plate bolts...tranny needs to go back more for that to happen (but I like the way you think!)

corax

do you have enought room to get some spray lube in on the input shaft? maybe slide the trans back and forth a few times to get whatever to loosen up?

coryc85

Perhaps your pilot bearing is fused to the end of your input shaft, and when you pried the tranny back the bearing came out of the flywheel and is now stuck on the end of the shaft and it won't fit through the hole in the clutch disc. I've never seen that happen, usually they are stuck in the flywheel, but hey you never know.

Maybe try spray lube like corax suggested, but I don't know if you could even get it in there behind the clutch.

corax

or a chain wrapped around the transfer case and attached to the bumper of another truck . . . make sure you chock the wheels on your rig first though

bigtrucknwheels

Define Eastern PA

I dunno what to tell the OP, but I am watching this thread, as it is intriguing. Sorry haha

corax

0.5 hrs NNW of Allentown, but we're moving somewhere in between East Stroudsburg/Hazleton/Wilkes Barre in a few months if our offer is accepted . . . I'm actually driving out to Sunbury tomorrow on business before heading down to Coleman's Surplus

kenbo53

probly not your problem since uve done this on toyotas befor but when i did my clutch i had simmilar problems. being that id worked on nothing but old gm stuff befor this where the starter is atached to the block unlike the toyota being atached to the transmision. unfortunatly i didnt discover this untill the lower mount broke off the starter from all the frustrated prying action

Lumpy

I don't know what your issue is, just subscribing so I know if or when I run into this.

BigTruck, Croax, I have kin in Lewisburg, might try to get a hold of ya if I have time when I head out that way again.

bigtrucknwheels

cool beans. I am building a mental list of all the PA members (not too many haha) on this site, who knows, maybe we could orchestrate a wheeling meet this summer like all the west coast folks do.

4WDarren

Yeah, the idea had been discussed Unfortunately, no good way to get a direct pull on it. A friend might drop by with a come-along or two, so we'll see if that works. Tonight I have some time to wrench on it, so we'll see what happens. I will definitely post some pics when I finally get the stupid thing out.
(I'm fairly convinced it's the pilot bearing siezed onto the input shaft)

4WDarren

FINALLY!!! Got the stupid tranny out! As promised, here's some pics of the final solution. As I was certain that the pilot bearing was stuck on the input shaft, the only logical next step meant to get the pressure plate & clutch disc off the flywheel to make some room to pull the tranny back.


I've got another tranny lined up to install, and as there was no other way of accessing the pressure plate bolts, I got down to business and made an access hole of my own:


At least now I could get the pressure plate and clutch disc to slide back enough to create room to pull the tranny free, and what do ya know, my theory was right:


Stupid pilot bearing! Argh!


For fun, I wanted to see how badly this thing was siezed to the shaft. It took my large puller to pull the stupid thing off, and it fought me all the way to the end:






Good grief! I've never heard of this happening before, but as they say, there's a first time for everything. Let's hope it's the last.

Tubbyfatty

Wow, what a pain.

I hear putting some anti seize on the shaft works to prevent this. I could be wrong tho.

corax

x2, sounds like a good idea and just might save you a bit of grief later on

bigtrucknwheels

nice solution. I am glad it worked out for you!

rockincobra

I have an 89 Toyota ex-cab 4WD, with same problem it has been giving me fits for some time now with the exact same problem and same exact symptoms, we tried everything to get the transmission free from the engine but it only goes about one inch or inch and a half and stops. I had looked it up before but did not search it properly so I did not think there was any posts about this and was at my wits end . I saw your post and I could hardly believe what I was reading wow that is the same problem I have! I blew the freeze plug at the rear of the engine and was in a bind and drove it a bit before I parked it for repairs just kept putting water in it, bad move on my part! All that water leaking on my poor little pilot bearing, nice. A guy sure hates to cut a hole in his bell housing but if there is no other way what the hell, lucky for me I have a spare bell housing from my old W56 tranny those little buggers are getting hard to find these days I was lucky to find mine for a steal of a price $200 delivered to my house! it only had 60 k miles on it out of a roll over and I value it highly considering how much money it could have cost me. your solution will work for me ,I am convinced thank you so much,as I was ready to give up,now I have new hopes, just wondering what did you cut the hole with ? grinder or?

My94yota

Looks like he used a cutting wheel to me, good find tho...

osv

it needs to be something that is heat resistant, you don't want it melting off and flying around... i use some old cam lube for points, stuff that i had from the vw days.

JasonYota

iTrader: (1)

This thread is 5 years old. Anti-seize will work fine or grease. I use anti-seize on exhaust parts and haven't had any trouble.