Autocrossing/road racers experiencing lifter noise?

stargazer

Member
 Omaha, Nebraska
Hi,

I've read of issues with the N52 engines (including lifter/head replacements to resolve), but not all that much on the M54... but the issue seems somewhat consistent with the same oil foaming as a result of hard running/cornering. Twice now, I've finished autocross events with the the lifters clicking. After a cruise at steady RPM's, the ticking disappears.

I'm curious if other M54 folks are encountering this, and what, if any solution they've found. I've heard possibly, adding an extra half quart of oil. I'm running Mobil 1 0W40... wondering if a heavier weight might help? Oh yeah, I'm in the US... both days, the temps were well over 35deg C (we're frying out here on the plains!).. at site of SCCA SOLO national championships, although the engine itself is maintaining normal temps.

Thanks for insights anyone might have,
Jeff
 
An update for anyone who cares... so I switched from the M1 0W40 to BMW 5W30, and so far, no lifter clatter... although the temps haven't been QUITE as high... only enduring low 30C's as of late.
 
Hi Jeff! That '02 looks great. Any chance you could post some pics up for us all to see? We love pics here... :D
 
Thanks Lozzer... I'll try to take more, posted a few that I do have here... http://www.z4-forum.com/forum/viewtopic.php?f=16&t=40903
 
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