091 build for turbo bus

Discuss VW transaxles and transmissions. Gearheads wanted!
User avatar
kubelguy13
Posts: 600
Joined: Thu Apr 07, 2011 2:12 pm

Re: 091 build for turbo bus

Post by kubelguy13 »

my main bearing is spinning when i try to undo the nut.
I need a press to squeeze the case and hold it while I get the main pinion bearing nut off.
"Being ready is not what matters. What matters is winning after you get there."
User avatar
Henryhoehandle
Moderator
Posts: 764
Joined: Wed Jan 22, 2003 12:01 am

Re: 091 build for turbo bus

Post by Henryhoehandle »

From what I can tell, it looks fine. Do all of the teeth on the pinion look as good as the "top" ones? There is something on the bottom ones or maybe a reflection or whatever??
User avatar
kubelguy13
Posts: 600
Joined: Thu Apr 07, 2011 2:12 pm

Re: 091 build for turbo bus

Post by kubelguy13 »

Henryhoehandle wrote:From what I can tell, it looks fine. Do all of the teeth on the pinion look as good as the "top" ones? There is something on the bottom ones or maybe a reflection or whatever??

It looks like black oil stains or just oil I think.
Can't get it out yet.
"Being ready is not what matters. What matters is winning after you get there."
User avatar
kubelguy13
Posts: 600
Joined: Thu Apr 07, 2011 2:12 pm

Re: 091 build for turbo bus

Post by kubelguy13 »

I don't have a press at home and my pinion nut is just spinning the bearing.
Can anyone tell me how to stop the bearing from spinning so I can get this big nut off?

Thanks
"Being ready is not what matters. What matters is winning after you get there."
User avatar
Henryhoehandle
Moderator
Posts: 764
Joined: Wed Jan 22, 2003 12:01 am

Re: 091 build for turbo bus

Post by Henryhoehandle »

That is tricky. Since it is spinning, then the case is shot or at least needs re-sleeved. Therefore, I use a die grinder (with a GOOD quality carbide burr bit- flat on the end works best) and grind through the nut (do it where the lock groove in the bearing is). After you grind through most of it, then you can use a chisel and crack the nut. You will most likely destroy the bearing threads, but it doesn't matter as you should probably replace it anyway..
User avatar
kubelguy13
Posts: 600
Joined: Thu Apr 07, 2011 2:12 pm

Re: 091 build for turbo bus

Post by kubelguy13 »

Henryhoehandle wrote:That is tricky. Since it is spinning, then the case is shot or at least needs re-sleeved. Therefore, I use a die grinder (with a GOOD quality carbide burr bit- flat on the end works best) and grind through the nut (do it where the lock groove in the bearing is). After you grind through most of it, then you can use a chisel and crack the nut. You will most likely destroy the bearing threads, but it doesn't matter as you should probably replace it anyway..
Thanks!

Sounds hardcore. I'd like to reuse the case. Too bad about having to resleeve.
"Being ready is not what matters. What matters is winning after you get there."
johnwalklett
Posts: 199
Joined: Tue May 04, 2004 5:59 am

Re: 091 build for turbo bus

Post by johnwalklett »

You can just split the nut with a chisel it makes less mess than a die grinder :wink:
User avatar
gaston
Posts: 195
Joined: Sun Sep 04, 2005 12:27 pm

Re: 091 build for turbo bus

Post by gaston »

kubelguy13 wrote:
Henryhoehandle wrote:That is tricky. Since it is spinning, then the case is shot or at least needs re-sleeved. Therefore, I use a die grinder (with a GOOD quality carbide burr bit- flat on the end works best) and grind through the nut (do it where the lock groove in the bearing is). After you grind through most of it, then you can use a chisel and crack the nut. You will most likely destroy the bearing threads, but it doesn't matter as you should probably replace it anyway..
Thanks!

Sounds hardcore. I'd like to reuse the case. Too bad about having to resleeve.
The guy at Rancho I talked with told me that they resleeve every case. So nothing bad.
User avatar
kubelguy13
Posts: 600
Joined: Thu Apr 07, 2011 2:12 pm

Re: 091 build for turbo bus

Post by kubelguy13 »

I finally got my pinion nut off. I put the trans in a press and put some pressure on the shaft.

Image

Here's the parts.
Image
Image
The main bearing case tabs.
Image
Image
Image

The shift housing has some wear inside. Is this repairable?

Image
"Being ready is not what matters. What matters is winning after you get there."
User avatar
kubelguy13
Posts: 600
Joined: Thu Apr 07, 2011 2:12 pm

Re: 091 build for turbo bus

Post by kubelguy13 »

The reverse gear shift fork was missing . It goes on the pin in the back of the photo here.

Image
"Being ready is not what matters. What matters is winning after you get there."
User avatar
Henryhoehandle
Moderator
Posts: 764
Joined: Wed Jan 22, 2003 12:01 am

Re: 091 build for turbo bus

Post by Henryhoehandle »

The wear on the shift housing won't hurt anything. If the bearing fits
loose in the bore then this can be sleeved as well.
You will want to install a thrust
plate under the nosecone as this
will prevent the mainshaft from moving.
User avatar
kubelguy13
Posts: 600
Joined: Thu Apr 07, 2011 2:12 pm

Re: 091 build for turbo bus

Post by kubelguy13 »

Henryhoehandle wrote:The wear on the shift housing won't hurt anything. If the bearing fits
loose in the bore then this can be sleeved as well.
You will want to install a thrust
plate under the nosecone as this
will prevent the mainshaft from moving.

This is good news. Where is a thrust plate available for a VW 091 gearbox?

Cheers
"Being ready is not what matters. What matters is winning after you get there."
User avatar
Henryhoehandle
Moderator
Posts: 764
Joined: Wed Jan 22, 2003 12:01 am

Re: 091 build for turbo bus

Post by Henryhoehandle »

User avatar
fastback
Posts: 1670
Joined: Wed Sep 12, 2001 12:01 am

Re: 091 build for turbo bus

Post by fastback »

does anyone have more info on resleeving pinion bore?
User avatar
kubelguy13
Posts: 600
Joined: Thu Apr 07, 2011 2:12 pm

Re: 091 build for turbo bus

Post by kubelguy13 »

fastback wrote:does anyone have more info on resleeving pinion bore?
rocky jennings does this.

http://rockyjennings.com/
"Being ready is not what matters. What matters is winning after you get there."
Post Reply