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msh441 · Mar 15th, 2007, 04:18 PM

Both videos are rough and the sound isn't great, but...

Some of it sounds like it's from the direct injection. Thats more the consistant rattly noise you hear. Kind of like a diesel. Perfectly normal to hear it at idel with the hood open like that. Again it's got a consistant tone and tempo though, and I would say it's normal for this car.

In the mix there however (second video especially), is somthing different. An intermittant knock. Noticably louder on the left side (near the timing chain) somewhat reinforcing the tentioner question.

Seems like most are experiencing this knock when it's cold out? The new engine has an "on demand" water and (I believe) oil pump that doesn't kick on until the block is up to operating temps. Any possibility the cam chain and main bearing aren't getting enough oil upon start up. Colder conditions = less viscosity & lubrication through the system. Oils starvation in the timing chain and main bearing causing problems? It's a thought.

Again though, somewhat confusing video unless you listen close. Those only hearing the surface DI rattle are gonna get paranoid over nothing. Know what I mean?

Mar 15th, 2007, 04:18 PM	#43
msh441 MINI2 Senior Join Date: Aug 2006 Location: Pacific NW Local Time: 03:34 AM Posts: 439 Offline	Both videos are rough and the sound isn't great, but... Some of it sounds like it's from the direct injection. Thats more the consistant rattly noise you hear. Kind of like a diesel. Perfectly normal to hear it at idel with the hood open like that. Again it's got a consistant tone and tempo though, and I would say it's normal for this car. In the mix there however (second video especially), is somthing different. An intermittant knock. Noticably louder on the left side (near the timing chain) somewhat reinforcing the tentioner question. Seems like most are experiencing this knock when it's cold out? The new engine has an "on demand" water and (I believe) oil pump that doesn't kick on until the block is up to operating temps. Any possibility the cam chain and main bearing aren't getting enough oil upon start up. Colder conditions = less viscosity & lubrication through the system. Oils starvation in the timing chain and main bearing causing problems? It's a thought. Again though, somewhat confusing video unless you listen close. Those only hearing the surface DI rattle are gonna get paranoid over nothing. Know what I mean? Founding member of R56 Anonymous: "Hello. My name is Mike. I'm a driving enthusiast... and I still like the R56"