No, the power loss is associated with the seals. The rings that cause the rattle cause no issues other than noise.
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Capo
No, the power loss is associated with the seals. The rings that cause the rattle cause no issues other than noise.
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BP
2005 330i ZHP / 6MT
Imolarot / Naturbraun
2003 330iT / 6MT
Orientblau / Naturbraun
It's not the car you drive, it's how you drive it.
Enforcer
Good to know. I was worried about driving it with the rattle.
It sounds like shit above 2500RPM so I’m just going to do the repair.
-Chris
Enforcer
My car sounded broken between 2-3k rpm with the VANOS rattle. I did the rattle kit from beisan to fix it and it reduced the rattle significantly but did not completely eliminate it.
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Enforcer
That's not good news... I wonder if you let it go too long and it got to a point where the rattle caused wear on the pistons so it's not 100% repairable? How soon after you heard the rattle did you repair it?Originally Posted by BMWM3186
I honestly don't know how long mine has been rattling because I just heard it for the first time yesterday when I drove with the windows down (first really warm day.) I can't hear the rattle with the windows up and radio on, so it's entirely possible it has been rattling for a while.
Anyhow - I ordered the Beisan rattle and seals kits today. I'm going to fix it and hope it goes away completely.
-Chris
Enforcer
I bought the car with the rattle, afaik the rattle is not caused by the Pistons, but rather the bearings/rings inside of them that wear because of the more aggressive Zhp camshafts.
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Enforcer
Ordered the Beisan rattle kit and seals kit, along with a VCG kit, oil fill cap gasket, oil line crush washers and spark plugs. Hopefully will have time to tackle it next weekend...
-Chris
Capo
It definitely not a ZHP specific issue. It affects all sorts of BMW vehicles with 6-cylinder VANOS. I'm not sure if the issue is present in 8-cylinder models.
BP
2005 330i ZHP / 6MT
Imolarot / Naturbraun
2003 330iT / 6MT
Orientblau / Naturbraun
It's not the car you drive, it's how you drive it.
Enforcer
I should revise that as more Zhp prevalent. Beisans website has a very good explanation that's very complex on their website as to the reason why the rattle occurs. "Performance cams like the cams on the US E46 ZHP or aftermarket performance (Schrick) cams create stronger camshaft lash forces and thus are more susceptible to causing a rattle."
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Enforcer
Looks good, thought the job was pretty easy. Just make sure you are careful when pressing the new seals into the VANOS and be careful around the pistons the metal on them is pretty soft and easy to scratch/mar when cutting the old seals off
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Enforcer
Mine still rattles at around 2k as well. I did the anti rattle kit and everything. there was MUCH less axial play in the pistons with the new anti rattle rings, but i still hear a brief buzzing like in the video when going through the 2k rpm zone. waste of $60 i guess
~ 2005 330ci ZHP Silbergrau | Black cube | Leather ~
Current Mods: Akebono brake pads, Bilstein B4 Rear Shocks, Beisan Systems VANOS Rebuild, G.A.S. DISA O-ring, Morimoto fog lights, StopTech SS brake lines, Subwoofer tennis ball mod, Switchback Angel Eyes (turn signal), Zimmermann drilled rotors.
My project thread ---> http://www.zhpmafia.com/forums/showt...into-a-reality
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