Clutch/ Trans issue

[wackadoo2]

Hello All,
1977 FJ40 4Spd.

Previous owner claimed that they may have burned the clutch up one day when it was stuck in the snow..i was told that it was stuck in reverse and she backed it into the garage and left it there.

The engine starts right up...
while the engine is running, i am able to easily shift through all gears..including reverse...without using clutch and without affecting the engine ...ie...its like i have the clutch engaged and im shifting gears..or like i have the truck turned off and am shiftng through the gears...but the engine is running..and nothing happens when i shift...

Im told these trannys are bullet proof and that an input shaft snap is likely not the issue..but i cant image what else it could be..maybe the clutch completely fell apart???...i dont know...anyone have any thoughts before i rip into this thing....

Thanks
Dean

 

[kanudude]

How's the master and slave cylinder? New clutch sounds to be in your future! It's a pain but you can get a lot of other things done when it's all apart!

 

[huminajumina]

There are like 4 bolts that hold the lower pan on the bellhousing, it is a thin piece of sheet metal, I am not sure if anything gets in the way taking it off, its been a while, but you could take that off and look up into the clutch and pressure plate to see what it all looks like, you'd have to take that off eventually, it may help you, but it sounds like your clutch is shot, look for pieces of clutch while you take it apart.... I don't think it is held on by anything else, maybe loosening the oil pan can help it wiggle free....

 

[reddingcruiser]

One quick check - remove the inspection cover from the bellhousing, put the rear axle on stands, put the trans in gear and have someone turn the drive shaft while you look up at the clutch If the disk is turning it's not a broken input shaft (try to hold it in place to make sure). Other things to consider, though rare, from a Toyota Service Bulletin:

Clutch Failure to Transmit Power:



1. Severely slipping clutch



2. Clutch plate hub spline's sheared



3. Hub torn from stamping



4. Flexible center broken



5. Broken clutch cover springs



6. Permanently set clutch cover springs due to sever slipping



7. Clutch facings worn to rive heads

 

[wackadoo2]

Thanks for input fellas...ill dig into it...quick question...

Looking for advice on removal of trans...people having better luck removing trans and transfer case together...or removing transfer case first then trans....

Ill be doing it on my back..so not overly excited but..its not the first time..

Thanks again..
Dean

 

[reddingcruiser]

If you are doing it on your back, split them. If they have never been apart since they were assembled at the factory odds are you'll need a puller to split them. Check the FSM, Haynes or similar manual for the procedure. Similarly, unless you have a good quality transmission jack, it's a lot easier to stab the transmission without the t-case when going back together.

 

[kanudude]

Take out the front seats, gas tank, and transmission hump. Then use a cherry picker through the door and lower everything to the ground in one piece!