I had another thread when BMW messed up on an oil change and ended up having to rebuild my entire motor. Everything was new except after inspection the two cams and the pistons could be reused. Everything other item was replaced and rebuilt. Everything’s been running great however today after opening the oil cap and looking inside I noticed one of the visible cam lobes had a notch out of it. I always thought cams should just be smooth. Kind of looks factory however I have no idea. Anyone thats gone into the motor can confirm this is normal that would be great. Thanks!
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That's supposed to be there.DD: /// 2011.5 Jerez/bamboo E90 M3 · DCT · Slicktop · Instagram
/// 2004 Silvergrey M3 · Coupe · 6spd · Slicktop · zero options
More info: https://nam3forum.com/forums/forum/m...os-supersprint -
Thanks! I also just looked at a few Google images of used cams and I thought I found one with the same image. I appreciate putting my mind at ease.Originally posted by Tbonem3 View PostComment
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I assume it's for machining the lobes? A withess mark or to hold it maybe. Or does it fling oil? Where's Digger?Last edited by Tbonem3; 02-13-2023, 02:47 PM.DD: /// 2011.5 Jerez/bamboo E90 M3 · DCT · Slicktop · Instagram
/// 2004 Silvergrey M3 · Coupe · 6spd · Slicktop · zero options
More info: https://nam3forum.com/forums/forum/m...os-supersprintComment
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Every lobe has one oil bucket to dump on the rocker to cool it off. Lube purpose.Originally posted by Tbonem3 View PostComment
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Makes sense. I always thought they were smooth all the way around.Originally posted by sapote View PostComment
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That part of the cam doesn't touch anything (well shouldn't). The gap is what you're measuring for when doing the valve clearances.Originally posted by GreyM340i View PostComment
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