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Title: BMW Thrust Bearing Conversion Post by: Martin Greaves on March 08, 2015, 20:10:56 pm Hi guys whats the updates on the best way to do the BMW thrust bearing conversion.
Center, Rear or both? Thanks Title: Re: BMW Thrust Bearing Conversion Post by: Udo on March 08, 2015, 20:18:15 pm You can make both , but center and front must get cut smaller and the thrust bearing must get cut into 3 pieces . i did this onece and works very nice
do Title: Re: BMW Thrust Bearing Conversion Post by: Martin Greaves on March 08, 2015, 20:47:21 pm Thanks udo I got two Scat cases here that I need doing. Just trying to workout which is the best way to do it.
Title: Re: BMW Thrust Bearing Conversion Post by: leec on March 08, 2015, 21:01:00 pm Are both your scat cases for flange crank then Martin?
Title: Re: BMW Thrust Bearing Conversion Post by: Martin Greaves on March 08, 2015, 21:09:38 pm No Lee need to get one of them cut for flange.
The master plan is to get both done at the same time. One with the Bugpark 82mm which will be a turbo motor and the other one is the Scat 88mm for the NSU. Title: Re: BMW Thrust Bearing Conversion Post by: leec on March 08, 2015, 22:10:51 pm Or donate one for the notchback ;D
Title: Re: BMW Thrust Bearing Conversion Post by: Martin Greaves on March 08, 2015, 22:17:08 pm Hahaha the 2109cc maybe for sell. :P
Title: Re: BMW Thrust Bearing Conversion Post by: UltraOrange67-2443 on March 08, 2015, 22:22:17 pm Hi Martin.
I'm currently looking for a thrust conversion for my 90 x 101.6 motor. It has the BMW bearings but a center main bronze thrust plate setup. Martin T wants to use something different as the thrust play is on the large side. What is this BMW thrust bearing like? Cheers, Nick (http://i222.photobucket.com/albums/dd150/Venomous-67/539742_10200496347112734_702350991_n_zpsfkfvcsef.jpg) (http://s222.photobucket.com/user/Venomous-67/media/539742_10200496347112734_702350991_n_zpsfkfvcsef.jpg.html) Title: Re: BMW Thrust Bearing Conversion Post by: Martin Greaves on March 09, 2015, 19:49:50 pm Hi Nicholas
That's what I'm talking about that is in your photo. Was trying to find out which is the best way to do it. As I have seen it done on the center like yours, or at the flywheel end, also both. If I remember the way Udo did his was to cut off the sides of a VW bearing and use them to make the thrust part with the BMW bearing in the center of them. I would just like to know form the guys on here that has been running it for a time now, what is the best way to do it. Before I start getting my cases machined. Title: Re: BMW Thrust Bearing Conversion Post by: Neil Davies on March 09, 2015, 20:51:32 pm Martin, I'm pretty sure Mike Lawless has done this with the Ghia and put it on his website about the car. Mike's write ups are always pretty straightforward and he'll tell you honestly if it works or not!
Title: Re: BMW Thrust Bearing Conversion Post by: Stripped66 on March 10, 2015, 14:31:13 pm If you're not running a flanged crank, consider running the hardened steel thrust plates from a 2.1L wasserboxer. They mount at the #1 main (where the thrust belongs...) and fit into the existing groove in the main saddle for the thrust bearing. The only modification is machining a notch into the saddle for the tang of the thrust plate ( http://ultimateaircooled.com/engines/18921-bmw-bearing-conversion.html ). The part number is 025105635.
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