worrying vibration

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   I  had to move my car a couple of feet last weekend,  and rather than 

switching off after 5 seconds  I  let the engine run for about a minute,  to 

avoid leaving it flooded.  It idled fine at 500rpm.  Just for fun,  I  leaned 

on the loud pedal a bit,  taking the revs up to about 1500 - 2000rpm.  It 

was then that I noticed an intermittant vibration through the car,  lasting 

about one full second,  and repeating after a full second each time. It 

disappeared at idle again.   Is this a V8 characterisitc,  or  a symptom of 

something expensive?

The engine was cold,  and there is nothing noticeable when driving.

Thanks.

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studyolic Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Really Senior Member I Joined: 09-July-2004 Location: Inchture, Dundee, Scotland. Status: Offline Points: 427	Topic: worrying vibration Posted: 29-December-2004 at 07:49
	I had to move my car a couple of feet last weekend, and rather than switching off after 5 seconds I let the engine run for about a minute, to avoid leaving it flooded. It idled fine at 500rpm. Just for fun, I leaned on the loud pedal a bit, taking the revs up to about 1500 - 2000rpm. It was then that I noticed an intermittant vibration through the car, lasting about one full second, and repeating after a full second each time. It disappeared at idle again. Is this a V8 characterisitc, or a symptom of something expensive? The engine was cold, and there is nothing noticeable when driving. Thanks.
	Richard. Current; 2000 316i Compact 1.9 previous; 1999 535i V8, 1995 316i Compact 1.6

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studyolic Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Really Senior Member I Joined: 09-July-2004 Location: Inchture, Dundee, Scotland. Status: Offline Points: 427	Posted: 31-December-2004 at 09:15
	?
	Richard. Current; 2000 316i Compact 1.9 previous; 1999 535i V8, 1995 316i Compact 1.6

J7 VNK Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Really Senior Member I Joined: 24-May-2004 Location: United Kingdom Status: Offline Points: 450	Posted: 31-December-2004 at 09:21
	sounds like a bit of a misfire to me, i would take it for a spin and see if it still does it afterwards!!
	1999 528iA Sport Pack,Aspen Silver,17" MTech's. 1994 525i Sport, Avus Blue,SOLD (BMWCC Member) 1999 323i SE E46, Black, man, Sports Leather. My Cars "BMW's are for life, not just for Christmas"

dan535i Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 07-February-2005 Status: Offline Points: 6	Posted: 09-April-2005 at 12:23
	What happened to this did it ever go away?

studyolic Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Really Senior Member I Joined: 09-July-2004 Location: Inchture, Dundee, Scotland. Status: Offline Points: 427	Posted: 09-April-2005 at 13:37
	Well I've been driving normally since then, including the odd thrash, and everything has felt fine. I haven't repeated the driveway test, though, so I am assuming it's a V8 thing. (or else I'm in denial).
	Richard. Current; 2000 316i Compact 1.9 previous; 1999 535i V8, 1995 316i Compact 1.6

micky_h Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Joined: 17-February-2003 Location: United Kingdom Status: Offline Points: 798	Posted: 09-April-2005 at 17:42
	It's probably the engine rocking on the mounts.I'm assuming it's a vibration you just feel rather than one you can hear too?

studyolic Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Really Senior Member I Joined: 09-July-2004 Location: Inchture, Dundee, Scotland. Status: Offline Points: 427	Posted: 10-April-2005 at 13:49
	Yes, just a mild thrummm through the steering wheel. Nothing audible.
	Richard. Current; 2000 316i Compact 1.9 previous; 1999 535i V8, 1995 316i Compact 1.6

micky_h Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Joined: 17-February-2003 Location: United Kingdom Status: Offline Points: 798	Posted: 10-April-2005 at 14:31
	Unless some knows better I would say it's just the torque of the engine rocking it when you blip the loud pedal.Pop the bonnet and do it and you'll see the lump moving.

dan535i Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 07-February-2005 Status: Offline Points: 6	Posted: 10-April-2005 at 15:28
	It sounds like a misfire, does it still do it around 1000-1300 rpm?

studyolic Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Really Senior Member I Joined: 09-July-2004 Location: Inchture, Dundee, Scotland. Status: Offline Points: 427	Posted: 11-April-2005 at 15:50
	no.
	Richard. Current; 2000 316i Compact 1.9 previous; 1999 535i V8, 1995 316i Compact 1.6