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» Northern California Ford Owners     » Automotive   » Tech Talk   » The source of my knocking sound

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Author Topic: The source of my knocking sound
N8
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Well I tore everything down got the valve cover off (drivers side). And this is what I found (check pics). Sorry the pics arent great. But the rocker on the driver side by the firewall, seems to be out of place, like it is flat. How bad is that? Advice please.

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Posts: 11638 | Registered: Sep 2005  |  :
whitelx91
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Man i cant tell whats goin on with these pics see if you could take some more less bright ones. Also bring that rocker to the flat on the cam.

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SuistangS

Posts: 380 | From: Sacramento Ca. | Registered: Apr 2008  |  :
N8
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ill try to take some better ones tomorrow. But the rocker in question is in a visibly deformed position. And it happens to be the one in the area of the noise.
Posts: 11638 | Registered: Sep 2005  |  :
4MY8TERS
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Can u move it around? I would say broke pushrod, or bad lifter

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Posts: 2337 | From: THE GOLDEN CITY AKA SFC | Registered: Aug 2007  |  :
N8
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I didnt try too hard but no it cant be moved by hand I would say.

ill see about better pics tomorrow

Posts: 11638 | Registered: Sep 2005  |  :
90gtvert
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could be a stuck lifter i guess...just gott check it out

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Posts: 1889 | From: Bay Area | Registered: Oct 2008  |  :
89goose
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from my experience with this issue - on my 289 it was doing that on several rockers - the problem was a a combo of bad lifters and warn lobes on my cam.
i would suggest changing the lifter and see , fi not make sure the push rods are same length, and if still the same - might looking into a new cam. look at it on the bright side - youll have a new cam,lifters and possibly pushrods [Smile]

hope this helps

Posts: 174 | Registered: Oct 2006  |  :
N8
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update, ended up being a floated valve. Replacing the suspect valve shortly.
Posts: 11638 | Registered: Sep 2005  |  :
whitelx91
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quote:
Originally posted by N8:
update, ended up being a floated valve. Replacing the suspect valve shortly.

You might want to check the spring to if your valve is floating.

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SuistangS

Posts: 380 | From: Sacramento Ca. | Registered: Apr 2008  |  :


 
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