GSR gearbox output shaft
- Thread starter ocyrion
- Start date
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brisvr4
Member
Sounds like the ball bearing that holds it in isn't there anymore.
If you pull the end cover off and remove the viscous coupling you will see 2 holes in the spline that it came off. There should be a ball bearing in one of those.
If you pull the end cover off and remove the viscous coupling you will see 2 holes in the spline that it came off. There should be a ball bearing in one of those.
Shit. Which end cover do you mean? The end with the spline/clutch housing or the engine mount side? Where am I likely to find that bearing?
I've got no idea how to put it in ... the manual I've got doesn't have a lot of detail...
the other end, the front cover. has 14x (or 11x) 14mm (2 really long ones). that is where the VCU and 5th gear are.
when the VCU is removed there is a little ball bearing that holds the transfer case output shaft in place. sometimes if the person who fucked with the gearbox doesnt know what they are doing, they dont re-install the ball bearing. leading to what you have posted, a shaft that can pull out freely.
to fix, you need to pull the front off, remove the VCU (big drum thing, held on by a circlip) and re-install the ball bearing and VCU.
if you have lost/dont know where the ball bearing i hope its not in the gearbox.
when the VCU is removed there is a little ball bearing that holds the transfer case output shaft in place. sometimes if the person who fucked with the gearbox doesnt know what they are doing, they dont re-install the ball bearing. leading to what you have posted, a shaft that can pull out freely.
to fix, you need to pull the front off, remove the VCU (big drum thing, held on by a circlip) and re-install the ball bearing and VCU.
if you have lost/dont know where the ball bearing i hope its not in the gearbox.
BMGTZ
Grumpy old man from the school of hard knocks
to do what Craig has said you will need a ......GOOD .......pair of external circlip pliers to get the viscous coupling off.
Hmmm none of this sounds good. The guy that sold it to me said it was fine while he was using it, mechanic removed it and fitted an Evo gearbox ... It hasn't been rebuilt or anything, just removed. So it's arrived here by courier and the shaft is loose.
Where can I get one of these ball bearings and do I need any fancy tools other than the circlip tool? Is this an easy job? I've never done anything inside gearboxes, plenty of engines and parts replacement and shit.
The ball bearing would have to be somewhere inside it right?
Where can I get one of these ball bearings and do I need any fancy tools other than the circlip tool? Is this an easy job? I've never done anything inside gearboxes, plenty of engines and parts replacement and shit.
The ball bearing would have to be somewhere inside it right?
brisvr4
Member
I'd move the box from side to side and listen for anything rattling around in there!
Have a look here for a little bit of help on what to do to get the ball back in.
clicky
Take notice of the first 3 pictures and the notes next to them, the rest doesn't apply to you.
The ball rests in the groove that you will see in the end of the output shaft.
Have a look here for a little bit of help on what to do to get the ball back in.
clicky
Take notice of the first 3 pictures and the notes next to them, the rest doesn't apply to you.
The ball rests in the groove that you will see in the end of the output shaft.
na no real special tools. i use flat head screw drivers to get the circlip off the VCU.
clean both mating surfaces and use some good gasket goo (ultra grey minimum)
the shaft doesnt come loose unless the ball bearing is missing.
getting a ball bearing, as they are a specific size, thats another story.
can you take a pick of the gearbox top down, so we can see all the gearbox sections? we can tell from the gasket goo in the sections if it has been opened (betting it has)
clean both mating surfaces and use some good gasket goo (ultra grey minimum)
the shaft doesnt come loose unless the ball bearing is missing.
getting a ball bearing, as they are a specific size, thats another story.
can you take a pick of the gearbox top down, so we can see all the gearbox sections? we can tell from the gasket goo in the sections if it has been opened (betting it has)
Thanks for the EXCELLENT information and help ... this kinda sucks though, the dude told me the box had no issues, this kind of messes with my plans. At least it looks relatively straightforward ...
I can probably tax the ball bearing from my stuffed gearbox at least.
I can probably tax the ball bearing from my stuffed gearbox at least.
doesnt really look like the front has been off recently. though when they removed the box from the car they didnt remove the reverse switch, because its fucked hahahaha
you will be able to use the ball bearing from your other box too, its a bit of fiddly job, i found those magnetic parts grabbers are great for holding the BB while installing etc.
you will be able to use the ball bearing from your other box too, its a bit of fiddly job, i found those magnetic parts grabbers are great for holding the BB while installing etc.
Cheers. Yeah I'm going to use mine. The speedo connector is stuck as well, but it looks like it will work. I'm pretty annoyed because I was hoping to put this in on Sunday and now it's going to be put back :angry: The daily Corolla that I bought got driven into and has to go in for repairs ... Not my luckiest month.
How else could the ball bearing fall out then?
I'm worried now that the ball bearing has been hopping around in there damaging stuff. I won't be happy if I put in the box and it's fucked ... I suppose it will leak if I just put it in as is, or the ball bearing will lunch the box.
the ball bearing cant just fall out/move, unless the output shaft and centre diff inner spline are serverly worn.
it may leak, it may not, once you bolt the transfer case into position it will stop the shaft fallling completly out, but it may move enough to leak.
if the BB is floating around the bottom of the box somewhere, its just a lottery. you may win, you may not.
The shaft has no sideways play when I move it around and the box has supposedly only done 130000kms. Is that an adequate test? I pulled it out a fair way and it looks clean ... but then I don't really know much about the insides of gearboxes. It looks like I'm going to learn...
The back section of the box usually does look the cleanest because its away from the rest of the gearbox.
Well if there was a bearing in it, once you pull the output shaft out from the transfer case end, the bearing would have fallen inside either the centre diff or ass end of the gearbox.
If the car had been driving with it like that then cross fingers the bearing didnt do any damage.
Well if there was a bearing in it, once you pull the output shaft out from the transfer case end, the bearing would have fallen inside either the centre diff or ass end of the gearbox.
If the car had been driving with it like that then cross fingers the bearing didnt do any damage.
It's definatly the ball bearings 
I had that problem last month I was putting a lock spline in and lost one
It's very easy. Just pop off rear cover behind the wheel. There is a C clip which is a pain to take on an off. Once that's off gently pry off coupling and replace the ball bearings. Chuck the viscous back on. Then the clip. Then bolt up and fill with oil. Check the shaft before u oil up to make sure it doesn't cone out anymore.
I had that problem last month I was putting a lock spline in and lost one It's very easy. Just pop off rear cover behind the wheel. There is a C clip which is a pain to take on an off. Once that's off gently pry off coupling and replace the ball bearings. Chuck the viscous back on. Then the clip. Then bolt up and fill with oil. Check the shaft before u oil up to make sure it doesn't cone out anymore.
I agree that the ball bearing locating the output shaft cant "just drop out" unless something is SEVERELY wrong. It is most likely that someone just hasnt put it back in a previous maintenance job on the gearbox.
The ball bearing is easy to get from bearing places. I get lots of boxes coming thru the workshop where the ball bearing is mising. Ages ago I stocked up on replacements... just ask for a 1/4" ball bearing ... easy !
If the ball bearing is in the gearbox hopefully the magnet is in place and would have grabbed it . Otherwise, it would have caused big damage ages ago, and as I stated earlier... the ball bearing cant just drop out from the shaft !
The ball bearing is easy to get from bearing places. I get lots of boxes coming thru the workshop where the ball bearing is mising. Ages ago I stocked up on replacements... just ask for a 1/4" ball bearing ... easy !
If the ball bearing is in the gearbox hopefully the magnet is in place and would have grabbed it . Otherwise, it would have caused big damage ages ago, and as I stated earlier... the ball bearing cant just drop out from the shaft !
All sorted now
The C-clip was a bitch!Couldn't find any trace of the ball but it looks like it was just forgotten by the mechanics who worked on the gearbox. Mechanics ...
It's got markings all over it so it's definitely been opened. Here's hoping it's sweet.Thanks a lot for all the help ... the size of the ball bearing was really useful, went to CBC and picked one up for a buck.
evo-gsr
Well-Known Member
Some interesting info in this thread........Hope it all works out for the OP too.
Looks good now, it has as much movement as my original gearbox. Shame the weather is so crap down here in Mexico ... I'm keen to get the new box in and get back into the GSR.
I'm surprised I got so much help with something so unusual ... props to all the members on here that helped me :thumbsup: :thumbsup: :thumbsup:
Got the gearbox in and all finished today, went for a drive and found that I couldn't get 5th gear. The reverse sensor needed a washer under it (forgot that). With that washer back in, I can get 5th. I thought this info might help people.
The synchros are good so far. The gearbox has a whine in first (which sounds pretty cool) and the reverse lights are not working. I used the reverse sensor from my old box but no reverse lights ... What might that be?
Otherwise it's pretty rockin. And great to be back in a car with some turbo violence.
The synchros are good so far. The gearbox has a whine in first (which sounds pretty cool) and the reverse lights are not working. I used the reverse sensor from my old box but no reverse lights ... What might that be?
Otherwise it's pretty rockin. And great to be back in a car with some turbo violence.
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