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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 11-28-2012, 11:11 AM   #1
dlandon
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HELP! Valves Stuck!

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Old 11-28-2012, 05:22 PM   #2
jared_wiesner
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Do the valves not close as you rotate the engine? They must or they would be bent. Given that the firing order goes from 2 to 4, it makes sense that they would both have their valves open to some extent at the same point in the cycle.
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Old 11-28-2012, 05:37 PM   #3
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See the two sets of cam lobes both pointing roughly up. Those correspond with cylinder 2 and 4.
(I apologize for the blurry picture, I had to zoom way in on a pic from my cam install DIY)
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1967 Buick Skylark - 430 Buick Big Block Swap.

Last edited by jared_wiesner; 11-28-2012 at 05:38 PM.
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Old 11-28-2012, 05:54 PM   #4
dlandon
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I thought that might be the case, but wasn't sure. I'll put everything back together and get a compression / leak down test done to make sure it's all sound.

Thanks!
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Old 11-28-2012, 07:03 PM   #5
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they look normal...
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Old 11-28-2012, 07:54 PM   #6
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This thread has much win.
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