E36 M3 3.0 engine knocking..?? - BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3

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E36 M3 3.0 engine knocking..??

E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999

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Mon, Jun-28-2010, 07:14:39 PM	#1
Jw_irl Registered User Join Date: Jun 2010 Posts: 1 Reputation: 0 Location: Wexford	E36 M3 3.0 engine knocking..?? Have a listen to this .. http://www.youtube.com/watch?v=ktUWZWItTqU Its not a big end bearing. The noise disappears with a good rev, but comes back now and again, and runs smooth in between....?? I had replaced the engine already for this problem, as I thought it was a piston hitting a valve, and replacing seemed easier than repair.. Only the main body "block,head and sump complete" was replaced, then the noise returned after 200 miles on startup one morning.. Original injectors, new plugs.. It will misfire before the knocking starts!!!! Can anyone shed some light..??

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Discussing E36 M3 3.0 engine knocking..?? in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)