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E21, E30 General discussion and technical help for 1975-1991 3 series cars.

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Old 03-07-2008, 01:20 PM   #1
josephb983

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M42 engine noise *video*



what might cause this sound? it happens on startup when it is cold out.
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Old 03-07-2008, 01:23 PM   #2
Numark318i
 
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dd you replace the chain tensiorner lately? Mine sounded like that after i replaced it(for about 20minutes)
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Old 03-10-2008, 12:01 PM   #3
josephb983

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Replacement of the tensioner did not fix the noise.

Pictures with the valve cover off:
Timing Gears
Timing Chain
Engine without Valve Cover

Does it look like my timing setup needs to be replaced?
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Old 03-10-2008, 11:17 PM   #4
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Sounds like as if a lifter has collapased and not filling with hydraulic oil pressure. The cams have to be removed to change them out so you might want to get a professional opinion in person before spending alot of money.
From the pictures your timming gears look fine, if the engine timming was messed up it wouldnt run smooth or even at all.
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Old 03-11-2008, 06:55 PM   #5
josephb983

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Quote:
Originally Posted by Antiburn View Post
Sounds like as if a lifter has collapased and not filling with hydraulic oil pressure. The cams have to be removed to change them out so you might want to get a professional opinion in person before spending alot of money.
From the pictures your timming gears look fine, if the engine timming was messed up it wouldnt run smooth or even at all.
I do my own work, so I only worry about part prices. I looked at how to change/test lifters and it looks fairly easy.

Thanks for your input.
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