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pinpointed ticking problem

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Old Apr 12, 2009 | 03:52 PM
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pinpointed ticking problem

Ive had a ticking coming from the drivers side head on my 74 302 for awhile now and finally found where its coming from. The problem is i dont know what the culprit is. I started it up with the valve cover off and watched. It took quite awhile for the 3rd valve from the front to start oiling. I pressed down on the rocker arm and it almost choked the truck down. The ticking isn't nearly as loud now but its still there. Now awhile back i changed that valve because the lash cap had broken off of the old valve. I put all new lifters and pushrods. Any suggestion to help me figure this out would be appreciated.
 
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Old Apr 12, 2009 | 05:06 PM
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From: Greenwood, SC
I forgot to mention that you can wiggle the the spring and the valve and spring move around.
 
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Old Apr 12, 2009 | 07:31 PM
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bumping to the top to see if anyone can help
 
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Old Apr 12, 2009 | 07:35 PM
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From: Duncan B.C.
Well, if the valve moves around, I assume the guide must be shot. Does it smoke?
 
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Old Apr 12, 2009 | 07:48 PM
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No it doesn't smoke at all. I was thinking the same thing but im not sure if a bad spring could do the same thing.
 
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Old Apr 12, 2009 | 08:13 PM
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From: Duncan B.C.
But a bad spring wouldn't make the valve move around, would it? If the guide is good, it should hold the valve steady. Is it possible for the seal to still seal when the guide is loose? Are you sure the valve itself is moving?
 
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Old Apr 12, 2009 | 09:08 PM
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i dont really know what keeps the valve steady. Yes the valve moves with the spring.
 
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Old Apr 12, 2009 | 09:14 PM
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I had the same problem on a 351m once ended up getting new guides installed in the head. The guide is what keeps the valve steady. How does it compare to the rest?
 
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Old Apr 12, 2009 | 09:18 PM
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All of the others are solid as a rock. No movement at all.
 
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Old Apr 13, 2009 | 06:31 PM
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sounds like you have a loose guide unfortunately the only way to fix it is to pull the head and have a new guide installed.
 
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Old Apr 14, 2009 | 12:01 AM
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Yeah thats what i believe is the problem too. I plan on taking it off and having it worked on tommorow if it will stop raining long enough to take it off.
 
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Old Apr 15, 2009 | 11:25 AM
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Took the head to the shop today. Will let you know what the problem is when i find out. Hopefully the wont break the bank.
 
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Old Apr 30, 2009 | 08:25 PM
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UPDATE........... I got my heads back from the shop yesterday and put them on today. The ticking is gone. Needed a guide like before mentioned and all 8 seats. They hit me for a pretty penny but im glad its finally gone. Thanks to everyone for their input.
 
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