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      02-14-2012, 10:11 PM   #1
mjposner
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Inspection I Valve Adjustment

I was under the impression that the E9X V8 did not need to have its valves adjusted like the E46 M3, but I got this from Mike Miller:

"ake sure the dealer performs a valve adjustment at the Inspection I service. Do not take no for an answer. Ask to see the car while the valve clearances are being checked. If that is not possible, tell them you want the old valve cover gasket. Look for tool marks on the valve cover nuts. Check for signs that the valve cover has been off, like that it was cleaned or has hand-prints on it."

Anyone know if this is true?
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      02-14-2012, 11:17 PM   #2
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Quote:
Originally Posted by mjposner View Post
I was under the impression that the E9X V8 did not need to have its valves adjusted like the E46 M3, but I got this from Mike Miller:

"ake sure the dealer performs a valve adjustment at the Inspection I service. Do not take no for an answer. Ask to see the car while the valve clearances are being checked. If that is not possible, tell them you want the old valve cover gasket. Look for tool marks on the valve cover nuts. Check for signs that the valve cover has been off, like that it was cleaned or has hand-prints on it."

Anyone know if this is true?
I've never head this before.
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      02-14-2012, 11:30 PM   #3
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Ooohh! Mike Miller! So who's Mike Miller?
Based on his knowledge level, I wouldn't be surprised if he was a CA.
Mike Miller is wrong.
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      02-14-2012, 11:33 PM   #4
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Quote:
Originally Posted by username11 View Post
He wrong.

"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." (http://www.automobilemag.com/auto_sh...se/weight.html)
yea... what he said
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      02-15-2012, 01:24 AM   #5
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Quote:
Originally Posted by username11 View Post
Google is your friend.

http://www.bmwblog.com/2010/10/18/in...mmer-magazine/

My guess is either he was talking about the E46 and was misquoted or he actually doesn't know what's he's talking about. Although from reading the threads around here people have trouble with accepting how low maintenance the M3 is. What, 15,000 miles and all it needs is an oil change? But, but.. my last car needed X, Y, Z, well yeah, that's called improvement.
Oh. that Mike Miller.
He's still wrong. (Or misunderstood the question).
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      02-15-2012, 07:14 AM   #6
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Mike is the most respected BMW tech in the business. If you are a BMWCCA member, his Tech Talk section is the most popular part. He also answers his e-mail which is appreciated.

I suspect he just got confused, but I have written him to clarify.
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      02-15-2012, 10:07 AM   #7
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Mike confirmed this morning that he was thinking E46, not E9x, so mystery solved.
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