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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 07-01-2004, 07:46 AM
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I have an E36 1995 M3 3 litre. It has a very strange intermitant dry sounding clatter that appears to be coming from the front of the engine. It has been to 2 BMW dealers who have changed the alternator belt tensioner and the waterpump which has not solved the problem. Now they want to take the head off to investigate which will be very expensive at 84 per hour.
Has anybody had a simular noise or has any suggestions.

Thanks

All responses appreciated.

Tim Parkinson
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#2 (permalink) Old 07-01-2004, 01:08 PM
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It could be a sticky lifter that isn't pumping up and closing the clearance between the rocker arm so there's a ticking.

It's hard to diagnose engine noises when you've got so little to go on and it's over the internet. Does it go away after some driving, or does it start making noise after you drive?

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#3 (permalink) Old 07-01-2004, 01:13 PM
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I have a noise that sounds like a metallic rattle, happens loudest around 2k rpms...people have suggested things, but I have no clue what the hell it could be...I know its not exhaust...It sounds almost like a bunch of loose change rattling on something vibrating really fast (if that makes sense)

look out dealer here I come... ghead

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#4 (permalink) Old 07-02-2004, 03:37 AM
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Quote:
Originally posted by Kevin325i@Jul 1 2004, 01:48 PM
It could be a sticky lifter that isn't pumping up and closing the clearance between the rocker arm so there's a ticking.

It's hard to diagnose engine noises when you've got so little to go on and it's over the internet. Does it go away after some driving, or does it start making noise after you drive?

Kevin
Hello Kevin,
Thanks for the reply. Initially it did go away after imidiate start up them come back when it had warmed up. Now it seems to be there all the time but not so prominant until it gets warm. Your right its hard to diagnose engine noise over the internet, its also quite hard to discribe. The noise is sound like click, click then its silent for a few seconds then click, click, click then silent for a few seconds then click and so on. It does seem to be getting worse though.
When you are driving you can hear it at low revs, when you accelerate it sound a bit like pinking.
However the engine does seem to run a bit smoother after the new waterpump.

Thanks

Tim
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#5 (permalink) Old 07-02-2004, 05:37 AM
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#6 (permalink) Old 07-02-2004, 12:50 PM
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Does it sound like it's coming from the floor of the pasenger side? I've got a click that I'm fairly sure is the wheel bearing, it comes and goes every now and then and the faster you go the faster it clicks.

Your's sounds like (if it's coming from the engine) just noise from the valve train. What type of oil are you using?

Kevin

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#7 (permalink) Old 07-02-2004, 05:30 PM
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I would change all the belts from your engine. I had a squeaking noise when i first bought my car and found out that a couple of the belts wit ripped/scratcheda little, so after replacing them the noise went away.

Could be your belts but again like kevin said i cant really tell over the internet.
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