Quote:
Originally Posted by DanFromTucson
I went with the re-machined pump disk from Beisan Systems. Has anyone heard any problems with this solution? It's a lot cheaper than replacing the whole exhaust hub.
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Beisan redrilled disks are great, they work. I will be doing this repair on my M as well, there is significant play that has developed between the hub tabs and disk. I encourage everyone to take this very seriously and have it done before you have a tab break off. A lot of E46 M3 owners have run into this problem even at very low mileage.
I will be sending my disk and exhaust hub out locally to get machined in the Beisan style, the reason i am sending both is so that the holes in the disk are EXACT with absolute 0 play.
Based on how much your exhaust tabs have "worn down" when you get a beisan disk there may still be a very small amount of play and I want to avoid this.