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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > M Series > E90/E92/E93 M3 (2008 - 2014)

E90/E92/E93 M3 (2008 - 2014)
4th generation E90 M3 sedan, E92 M3 coupe and E93 M3 convertible. The last of the naturally aspirated M3s, powered by a 4.0 liter V8 making 414hp and 295 lb-ft of torque.

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  #1  
Old 06-24-2007, 11:28 PM
munchen munchen is offline
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Question V8 engine M3 (E92...) require valve adjustment?

Does anyone know if the new V8 powered M3 (E92...) require regular valve adjustments -- like the E46 M3 engines?
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  #2  
Old 06-25-2007, 08:43 PM
GregW in Oregon GregW in Oregon is offline
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Valve adjustment

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Originally Posted by munchen View Post
Does anyone know if the new V8 powered M3 (E92...) require regular valve adjustments -- like the E46 M3 engines?
No, they're hydraulically adjusted like most cars these days. BMW figured out how to do it and still keep the valvetrain mass down.

"The single-piece aluminium cylinder heads feature four valves per cylinder in characteristic BMW style. The valves weighing 42 grams each are activated by ball-shaped cup tappets with hydraulic valve play compensation. Tappet diameter is only 28 millimetres or 1.10, while the intake and exhaust valves measure 35 and respectively 30.5 millimetres (1.38 and 1.20) in diameter. Measuring only 5 millimetres or 0.20 across, the valve shaft has hardly any influence on flow conditions in the intake manifold, while the hydraulic valve play compensation rules out any change in valve play, ensuring lasting reliability and at the same time reducing the cost of maintenance." --BMW press relesase
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Last edited by GregW in Oregon; 06-25-2007 at 08:47 PM.
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  #3  
Old 06-26-2007, 12:52 AM
munchen munchen is offline
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Location: Newport Beach Peninsula
 
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Thanks

Thanks Greg W for the answer to my question re: valve adjustment on V8 M3 engine. Another reason for the V8 M3!
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  #4  
Old 06-26-2007, 06:20 AM
GregW in Oregon GregW in Oregon is offline
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Valve adjustment

Here's a pic of the valvetrain components:

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2015 M4 Coupe - Silverstone/CF/Sakhir
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  #5  
Old 07-03-2007, 05:12 PM
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Chimera Chimera is offline
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Where do you guys find this stuff at?
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Old 07-03-2007, 05:17 PM
Cliff Cliff is offline
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Quote:
Originally Posted by GregW in Oregon View Post
No, they're hydraulically adjusted like most cars these days. BMW figured out how to do it and still keep the valvetrain mass down.
Nice

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Originally Posted by Chimera View Post
Where do you guys find this stuff at?
http://www.worldcarfans.com/print.cf...2.001/lang/eng

WorldCarFans is usually a good place to check.
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