I'm attempting to change my input shaft bearing. I quickly realized I wasn't going to be able to sneak the old one out of the front and a new one back in without removing the input shaft. I gathered that the counter shaft needs to drop down out of the way so the input shaft can be removed. I am looking around for a transmission shop to pull the countershaft bearing for me as I don't have the correct puller for that job. Once that is out I'm almost certain that won't be enough to drop the countershaft. So I tried to follow a Volvoforums thread where a guy pulled the fifth gear housing but I've reached a wall in that direction as well because I can't fully remove the housing likely because of the tapered roller bearing on a shaft in the rear. What should my next move be? Any ideas?
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M47 type II input shaft removal
- Thread starter ThaSnyGuy
- Start date
hiperfauto
The Librarian
- Joined
- Nov 18, 2011
- Location
- So Cal
You could see if anyone is willing to rent you the tools necessary to do the job.
hiperfauto has been know to rent tools to TB members so you might ask him. He may even know a way to change the bearing without removing the input shaft.
hiperfauto has been know to rent tools to TB members so you might ask him. He may even know a way to change the bearing without removing the input shaft.
I would love to know more if you could elaborate.
hiperfauto
The Librarian
- Joined
- Nov 18, 2011
- Location
- So Cal
The tools used to remove the rear mainshaft bearing (9995058, 9995147, 9995148) can also be used to remove the input shaft bearing in situ. You just need to place a socket over the end of the input shaft as the puller screw is just a hair too short to get the bearing all the way off. Then use an air hammer with a long pointed bit to gently tap on the inner race of the new bearing to install it. The bearing will start cocked a little so turn the input shaft between taps and it will straighten out. Just make sure you don't pull on the input shaft during the entire process. If you do, the synchro can turn so the locating keys aren't aligned with notches in the synchro.
Oh yeah I did exactly what you said not to do. The synchro dogs are out of alignment so the input shaft won't go home now. I took everything to a transmission shop this morning. My biggest issue with this is that I had the confidence to fix something without knowing what I was doing. I don't do that a lot so I'm okay with admitting defeat and having this shop fix my mistakes. A bit of patience in obtaining the right information wouldve been priceless. Now I know better. I'll probably be revisiting this topic when I use my m46 I have laying around. Thank you for your response and value information.