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engine noise has me stumped - any thoughts?
(**ALL BETTER NOW***) a squeeky noise, sounds rotational, changes with engine speed. clutch engagement doesn't change it, nor does removing alt belt. only things I did to the engine lately were a tensioner update and a valve adjust. the engine pulley isn't contacting anywhere. poured some oil into the dizzy. no change. there's a limited number of rotating things on the outside of a 911 engine. could be a chain noise of some sort but I can't imagine what. my next thing will be removing the engine pulley and tins. no mfi drive on the cam.
have a listen...................... YouTube - 001 YouTube - 002 Last edited by haycait911; 01-31-2011 at 08:06 PM.. |
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01-31-2011, 07:45 PM
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Member 911 Anonymous
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Have you checked your fan belt? When I over tightened mine, it squeeled like a pig.
One shim in no more Squeel.  Oops nevermind you pulled the belt :?:
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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01-31-2011, 07:49 PM
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Member 911 Anonymous
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Watched Vid, have checked under the car? Maybe exhaust leak/loose bolt?
Sorry can't be more helpfull.
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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01-31-2011, 07:53 PM
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Member 911 Anonymous
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Sorry to be so annoying, one more brain fart:
Did put a stethoscope near the upgraded tensioners?
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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01-31-2011, 07:57 PM
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thanks for the thoughs. Draco, you got me on the right track. looked underneath but didn't sound like an exhaust leak, I've had plenty of those. so I looked at the other end. a little spraying of quick start at the intake manifold gaskets told the tail. I've never had an intake leak before, sure sounds like a belt or sheetmetal squeek. anyway, it appears some genius didn't tighten the manifold to head nuts very well. or let's say the gaskets squished a bit and allowed a leak, yeah.that's right
 . anyway, tightened nuts and all's well. took longer to load the videos than the fix took. thanks much, Don.
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01-31-2011, 08:04 PM
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Join Date: Dec 2008
Posts: 179
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Did you check your distributer? Look under the cap?
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01-31-2011, 08:05 PM
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Warren Hall Student
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Considering the last thing you did before it started was the tensioner upgrade and valve adjustment so I would look there.
Pull the valve covers and take look inside. Make sure you didn't leave something inside. Also pull the chain box covers and inspect there as well.
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Bobby _____In memoriam_____ Warren Hall 1950 - 2008 _____"Early_S_Man"_____ |
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01-31-2011, 08:07 PM
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Member 911 Anonymous
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Oh cool, He Fixed It!
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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01-31-2011, 08:14 PM
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Warren Hall Student
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Congrats. Maybe it was one of the stacks rockin.
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Bobby _____In memoriam_____ Warren Hall 1950 - 2008 _____"Early_S_Man"_____ |
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01-31-2011, 08:16 PM
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912 SWB
1967 porch 912
Marble Grey
73' Porsche Targa
