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and then... knock knock :(

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Old 03-12-2015, 06:08 AM
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Cyberpunky
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Default and then... knock knock :(

So start up the car and heard this


WTF now lol
Old 03-12-2015, 06:13 AM
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JET951
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did the noise go away when it got warm?if your lucky it could be a very loose cam belt hitting the timing covers
Regards
Sean
Old 03-12-2015, 06:46 AM
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Cyberpunky
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I have heard a similar sound at start up before but it always went away straight away. I didn't let car get warm this time as was sorta freaked out about how loud it was. Sounds like it is coming from cam belt area.

If it goes away when warm would it still be belts ?
Old 03-12-2015, 08:06 AM
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reno808
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does it go away if the RPMS go up?
Old 03-12-2015, 08:24 AM
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after I shot video I shut her down and can't say. Too late at night here to try anything now
Old 03-12-2015, 08:34 AM
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try it to see if it goes away.... one step closer
Old 03-12-2015, 09:16 AM
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Old 03-12-2015, 09:27 AM
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Darryl H
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I wouldn't start it again if you think it's loose belts. Get the cover off and check. It's reasonably quick to get a look at the belts and will prevent any damage to your engine.
Old 03-12-2015, 09:36 AM
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V2Rocket
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definitely sounds like belt hitting the plastic cover.
Old 03-12-2015, 10:41 AM
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divil
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Not sure if everyone else noticed this, but there is an intermittent "roll" within that knocking sound (kind of like a drum roll if you know what I mean). It is the same sound, just much faster. Maybe a loose timing cover? Or maybe a belt sometimes scrapes off the ridges on the outside of the cover?
Old 03-12-2015, 01:03 PM
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User 52121
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Yep I'd check the belt tension, and all the pulleys, idlers, and cam gear. Make sure nothing is loose.
Old 03-13-2015, 07:46 AM
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Cyberpunky
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Didn't get to check anything tonight after work, and think I will check under belt cover before I run her again just to be safe.
Old 03-13-2015, 02:04 PM
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odurandina
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sure doesn't sound internal. more like a bongo drum.

where you were standing, did it sound like the bongo was being played near the front?
Old 03-14-2015, 02:36 AM
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numbskull
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I would definitely pull the covers and inspect, check tension again. Did you recently install the belts and forget the metal guide or maybe plastic belt cover is not seated? And make sure it is not fans hitting the radiator hose. I did this and chewed the hose up not aligning on drivers front side.



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