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BMW 3-Series (E90 E92) Forum
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How long have you had your engine tick?
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10-09-2018, 01:40 PM | #23 | |
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i wish my engine was always smooth |
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10-09-2018, 11:25 PM | #24 | |
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Oh, and a timing tool kit so you can lock the crank down while you take out the exhaust cam. ~$100 on amazon. I should also add that you only need to replace your EXHAUST lifters. The intake lifters are under constant tension and can NOT tick. |
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10-10-2018, 07:40 AM | #26 | |
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10-10-2018, 11:28 AM | #27 |
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I imagine that's all going to depend on your particular motor and it's tolerances.
I know that mobil 1 is no longer LL-01 approved, but whatever. I only run 5K mile OCIs anyway, so it's fine. I guess just try some different stuff until you find something your motor likes. I know lots of people have had great like with rotella, and it's all I ran i njeeps for years, but it just didn't work for me. |
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10-10-2018, 05:01 PM | #29 | |
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the only time I ever heard a tick was when I first did the MILVS installation, and of course I had a lot of the valvetrain in pieces. Haven't heard it since. |
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10-10-2018, 11:18 PM | #30 | |
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Nope! Just lifters, rocker arm/rollers, and the gaskets you've removed. I've attached the PDF with the TSB (head replacement hasn't been their recommendation since the TSB was updated in 2012) |
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10-11-2018, 01:22 PM | #31 | |
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an oil/filter change and it's quiet again. I know right? I saw on BITOG that mobil stated the formulation is still fine for the older engines, but failed the new turbo N stuff, and they apparently weren't super interested in changing the oil to meet the new requirements. |
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10-11-2018, 02:50 PM | #32 | |
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The lifters tick due to air in the lifters. That's a fault of the head design (whether it's only the exhaust side I'm not disputing). Newer lifters might be less prone to getting air in them, but regardless of Valvetronic, both the intake and exhaust lifters are tensioned in exactly the same way. Without any oil pressure, when the cam lobes are not pushing on them - they are collapsed. When the engine builds up pressure, they pump up again. I'm not sure why you think the intake cam 'tensions' them differently. |
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10-11-2018, 02:51 PM | #33 | |
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10-13-2018, 01:50 AM | #35 | ||
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The only other possible cause of lifter tick on the N52 is worm camshaft bearing ledges causing inadequate oil pressure in that area of the head (which affect pressure at the lifters). Quote:
I don't want to be a jerk, but I've spent years working on these motors, and replacement of lifters & rollers/rocker arms have been the only 100% permanent fix (outside of the more rare camshaft bearing failures that have been SO bad to cause it) |
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10-13-2018, 09:33 AM | #36 | |
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Appreciate the info. Do you know if this could cause engine failure? Or is it just a minor annoyance? At this point it’s about return on investment - I’d rather spend $60 on new oil to reduce 80% of the noise versus several hundred (if not a few thousand) to eliminate the noise completely. I think most people that own an e90 are in the same boat, these cars aren’t that expensive, so it doesn’t really make sense to spend that kind of $$$ if the ticking doesn’t kill the engine. |
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10-15-2018, 10:59 PM | #37 | |
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10-16-2018, 06:53 AM | #38 |
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I've got two N52s; one we've owned since new (ordered it, E90 330i), and the other one bought used almost 3 years ago (E91).
The 330i has been perfect since new, engine-wise. Always has had 7k or less oil change intervals, etc. I have used Mobil 1 0W40 in it since it left free maintenance period (during the free period, did the inter interval oil change with BMW 5W30). No noise, no tick, etc, at 157k miles now. The E91 was quiet for the first 18 months or so after purchase, then it started ticking during cold months of the year on start-up and for a short while after. Now it's starting ticking this year with 60F weather, and it doesn't go away as quickly. I was initially using M1 0W40, but at last oil change about 6 months ago switched to T6 5W40 hoping to help the tick. No luck. Car has 128k miles on it. From all the research I've done, it's simply an auditory annoyance, but I've had one guy in a parking lot try to tell me my engine was about to fail, lol.
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10-18-2018, 01:56 AM | #40 |
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10-18-2018, 05:05 AM | #41 |
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No kidding. It's #1 goal is to get to 6th gear as fast as possible and hopefully never come out of it. On a 2007 it is pretty awful to experience this slushbox and its programming. I did drive the E91 yesterday, and it started up with the ticking, and (as usual) after it was fully warmed up, I ran it hard up through 1, 2, 3, and then cruised along in 3rd between 5-6k for a few minutes. Tick gone for the rest of the day. It'll be back of course.
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10-19-2018, 07:36 PM | #42 |
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