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Old 08-05-2012, 08:36 PM   #1
fiveightandten
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Beisan anti-rattle, or leave it alone?

I'm looking for some input. I'll be pulling my valve cover off and I figured i'd do my VANOS o-rings while i'm in there. I'm thinking about doing the anti-rattle fix as well while i'm in there. But i'm not sure it's necessary.

In looking at the procedure, it seems like the rattle kit is basically a set of bearing retainers that are very slightly thicker than stock, to compensate for any wear in the needle bearings. The procedure to achieve the proper tolerances is to perform trial and error by feel, removing material from the retainers with sand paper until it feels right. No offense to anyone intended, but it seems that there is a lot of room for error, and the tolerances aren't based on anything concrete.

My car is a 2003 330ci with 108K on it and no discernible rattle. I'm somewhat inclined to leave well enough alone for now. But i'm interested in hearing some input from anyone who has been through the procedure and also didn't have any rattle.
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Old 08-05-2012, 09:51 PM   #2
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When I replaced my Vanos o-ring seals, I only did those, and didn't do the rattle kit. Seemed like alot of work for an issue I didn't have. Did replace the VCG and sparks when I did the Vanos.
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Old 08-05-2012, 09:57 PM   #3
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your M54 will be mostly fine.
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Old 08-06-2012, 12:22 AM   #4
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I'm doing both for the sake of it. May as well while I'm in there. On the other hand, they don't all break, so it's not an 'inevitable' replacement.
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Old 08-06-2012, 12:24 AM   #5
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If you plan to raise the redline, track the car, or add cams, put the anti-rattle kit in. Most say you can't develop the rattle if you don't have it at 100k or so, but I think that's incorrect.

Why not Dr. Vanos? It fixes both and is an easier install.
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Old 08-06-2012, 12:43 AM   #6
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Thanks for the replies everyone. It sounds like this isn't a must do. I guess that's why I didn't find many threads on it. Maybe leaving it for now makes sense.
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Originally Posted by zhp43867 View Post
If you plan to raise the redline, track the car, or add cams, put the anti-rattle kit in. Most say you can't develop the rattle if you don't have it at 100k or so, but I think that's incorrect.

Why not Dr. Vanos? It fixes both and is an easier install.
The car is a daily driver and will remain unmodified. I put a Dr VANOS unit in my E36 M3 and was happy with it. But for twice the cost (or 4 times the cost of the seals when I have no rattle), I'm not sure I can justify it over the Beisan kit, which isn't a lot of work for just the seals. It's the anti rattle fix that I don't like the looks of. But I'm not sure if Dr VANOS is putting new bearings in, or new retainers to soak up the bearing wear like Beisan is. New bearings would justify the Dr VANOS cost a bit.
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Old 08-06-2012, 12:49 AM   #7
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I was one of the test cars for the Beisan system and in my case it was well worth it. But I also had the man himself, Raj, helping me install it. If you don't have any rattle then there is really no need. But if you do I would suggest it. I posted a before and after video in the Beisan thread and the difference is night and day.
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Old 08-06-2012, 03:29 AM   #8
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It should be fine. I only did the seals on my car with 117k miles
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Old 08-06-2012, 06:34 AM   #9
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Well the ZHPs seem to be more susceptible to the rattle- probably because of the cams/redline. I put the Dr. Vanos in. I asked him about it vs the Beisan rattle kit and he said it should do at least as much if not more to silence the Vanos than the Beisan kit. I had a very slight beginning rattle at somewhere around 3-4k (not sure, don't remember now) and it went away with the Dr. Vanos kit.
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Old 08-06-2012, 09:22 AM   #10
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Did my vanos at around 98k. No rattle. Have around 130k now. Still no rattle. Didn't do the rattle kit. Just my own experience.
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Old 08-06-2012, 09:39 AM   #11
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While I was doing the seals I decided to do it, mine didn't have the marble rattle sound at any specific RPM but after doing the Anti-rattle spacers the whole vanos unit is much more quiet then before. The original owner of my car did replace the unit at 70k miles with another OEM unit. Car now has 131k.

Check it out on my site here:

Vanos Repair Images

OEM spacer
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Old 08-06-2012, 09:43 AM   #12
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While I was there replacing my VANOS seals I went ahead and installed the anti-rattle kit. Wasn't that hard to do...just take your time when you do it.
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