Member
My 99 s52 has developed a tap in the cam area, I think it started after I did a shark injection with the increased redline?, definitely noisy in the rear area of the cam cover, took it off and couldn't find any thing amiss, is a collapsed follower common,or probable?, 20/50 synthetic,130k.
Wagon meister :)
BMW Tech Expert
Are you sure you want to run 20W-50 in the winter time? A 5W or 0W would be much better and do less damage.
Does the noise go away after it warms up? If so then it will be that the oil is the wrong weight.
Also have a look at your cam for wear/ridges. While it can be a bad follower, there is a good chance it will start to show as excessive wear on the cam.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
Member
I thought it could be viscosity related, but no, it gets noisier when warm, still planning for a winter weight oil change,even though my oil has just 1K on it. I'm gonna pull the cover again,and build an oil deflector so I can put a stethoscope near it while running.Originally Posted by dworthy
Wagon meister :)
BMW Tech Expert
Best to narrow down which one, as there is 24 lifters on that car.
What makes me thinks is that the oil, warm or not, has drained out of the lifters. With that heavy of a weight, it cannot get back into the chambers to refill the lifter so it is tapping on you now.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
Member
Exactly my theory, I'll try some winter oil first, the tap hasn't gotten any worse in 100 miles.
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