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08-07-2016, 04:46 PM
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#1 |
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Registered User
 
Join Date: Dec 2014
Location: Plainfield il.
Posts: 643
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Valve train Noise
Does this seem like excessive valve train noise? Lq4 with Texas speed cam 595/598 lift. Dual springs. What do you guys think?
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08-07-2016, 04:50 PM
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#2 |
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Registered User
Join Date: Dec 2014
Location: Plainfield il.
Posts: 643
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Re: Valve train Noise
See if this link works instead
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08-08-2016, 12:10 AM
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#3 |
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Registered User
Join Date: Apr 2013
Location: Nor-Cal
Posts: 632
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Re: Valve train Noise
neither video works
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08-08-2016, 12:41 AM
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#4 |
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Post Whore
 
Join Date: May 2015
Location: Alabama
Posts: 14,674
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Re: Valve train Noise
I can get it to play but the exhaust is so loud I can barely hear the valve noise but I can hear it..I wouldn't think I should hear it at all so I would say its excessive.
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08-08-2016, 12:53 PM
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#5 | |
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Registered User
Join Date: Dec 2014
Location: Plainfield il.
Posts: 643
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Re: Valve train Noise
Quote:
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08-10-2016, 11:42 AM
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#6 |
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*************
Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,862
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Re: Valve train Noise
When you go high lift cam and heavier springs you will get valve noise. The only other thing to check is the pushrod backlash.
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08-10-2016, 05:16 PM
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#7 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Valve train Noise
If you recently switched to a header from a cast manifold, your actually hearing the valve events from the exhaust site of the head. The thin wall tubes are NOISY and you'll hear pingy-ticky noises which never used to be there.
If your valvetrain geo is actually off, it'll sound like your trying to turn over one of those old external pushrod engines...like a damn sewing plant from the 1930's.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING  |
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08-10-2016, 05:36 PM
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#8 |
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Registered User
Join Date: Dec 2014
Location: Plainfield il.
Posts: 643
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Re: Valve train Noise
I've always had long tubes on it. You can only hear it during a certain rpm and at idle
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