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jon s
New User
Jan 16, 2010, 9:50 PM
Post #1 of 2
(965 views)
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1999 buick centry 3100 v6 low miles 60000 has noise in top of engine did compresion test 170# all around/ checked oil pressure w mechanical gauge 40 psi at idel changed oil and filter does not miss abit noise gets louder when its reaved up /took valve covers off and started up and oil is bearley coming out i need help tanks jon
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jan 17, 2010, 8:15 AM
Post #2 of 2
(950 views)
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Re: engine noises
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Some ideas to check and questions:
* What did the sludge situation look like? Did any rocker arms have free play?
* A maybe it's not the engine but an accessory. Take belt off for a quick test - if noise is gone it could be the belt or belt driven item.
* What's the history if known and why the low miles? That's ok but if it sat an extended time it may take some use and may clear up.
* My term: Car may have suffered from perhaps a person (older maybe) who wicked over revved engine while cold, a habit my own late Grandfather had but didn't suffer a problem by luck. I've heard of broken or worn cams which might still work but can make noise.
** The oil should have been witnessed if run without valve covers dripping down each rocker arm. Not sure on this engine which to me has a good reputation.
Can you describe the noise a bit - like all ticking both sides, a single ticking, dull muffled bell sound, knock, double knock - anything more for us to help you with?
T
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