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Registered
Join Date: Jun 2007
Posts: 136
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Loud Grinding / Rattling Sound
I have an '87 3.2. It has 130,000 miles on it and has been meticulously maintained since ownership. It has been running like a finely tuned sewing machine up until now. I mean it runs OK, but the engine makes a loud grinding / rattling sound when I rev it up. What could it be and do I need to get it to the shop as soon as possible?
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06-21-2007, 07:18 AM
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GAFB
Join Date: Dec 1999
Location: Raleigh, NC, USA
Posts: 7,842
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Sounds like a failed chain tensioner - do not start car again until this has been checked out. Tow to a professional shop if necessary.
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Several BMWs |
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06-21-2007, 07:25 AM
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Designer King
Join Date: Mar 2004
Location: Toronto, ON Canada
Posts: 5,499
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+1 on that. Does it happen just off idle?
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Paul Yellow 77 Sunroof Coupe/cork interior; 3.2L SS '80 engine/10.3:1/No O2; Carrera Tensioners; 11 Blade Fan; Turbo tie rods; Bilstein B6; 28 tube Cooler; SSI, Dansk; MSD/Blaster; 16x7" Fuchs/205/50 Firestone Firehawk Indy 500s; PCA/UCR, MID9 Never leave well enough alone |
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06-21-2007, 07:54 AM
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Registered
Join Date: Mar 2003
Location: Delray Beach, FL
Posts: 103
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agree. same thing happened to me. both chain tensioners were shot. luckily, i got it taken care of before any catastrophic damage occurred. i believe you can check them out by removing the chain covers and pressing down on them. if they collapse, they're done.
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Jordan '83 911SC |
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06-21-2007, 08:03 AM
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Registered
Join Date: Jun 2007
Posts: 136
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Everyone,
Thanks for the feedback. I took your advice and got it towed to Eurosport. Yes, it just occurs off idle. I think it will be worth the $60.00 tow fee even if it turns out to be something else. |
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06-21-2007, 10:00 AM
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Registered
Join Date: Oct 1999
Posts: 8,673
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Lesson: even Carrera tensioners can fail.
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06-21-2007, 01:26 PM
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Make Bruins Great Again
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Lesson #2: Loud or grinding noises
 are rarely good and usually require an immediate shutdown and tow to the shop.
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-------------------------------------- Joe See Porsche run. Run, Porsche, Run: `87 911 Carrera |
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06-21-2007, 07:24 PM
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GAFB
Join Date: Dec 1999
Location: Raleigh, NC, USA
Posts: 7,842
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How did this turn out??
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Several BMWs |
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06-27-2007, 10:56 AM
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Registered
Join Date: Oct 1999
Posts: 8,673
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Was talking to my mechanic, he said he had a car come in... could hear the grinding a block away, before he even got to the shop.
Drove it all the way from his house that way. Tore the crap out of the engine case |
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06-27-2007, 11:17 AM
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#29 SCWDP (muhaahhh!!)
Join Date: Jan 2006
Location: Jupiter Florida
Posts: 1,747
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Another reason for the 'safety collars'!!
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IslandmanFL SOLD...78 911SC (ROW) cabriolet/widebody hear BEBE purr!! 92 325is Now living in Sunny West Palm Beach FL! |
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06-27-2007, 12:18 PM
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Make Bruins Great Again
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See lesson # 2 above.
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-------------------------------------- Joe See Porsche run. Run, Porsche, Run: `87 911 Carrera |
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06-27-2007, 07:02 PM
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Max
