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9dreizig's Avatar
 
Join Date: Jul 2005
Location: Reno, NV
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valve adjustment

So adjusted my valves on my last engine drop. First time, followed the book. They were tight as hell before I adjusted them (couldn't get a guage in them and REALLY cranked down).. So now my buddy tells me they are a little loud. Apparently a common rookie mistake is not cranking them down far enough.. So my question is if they are a little loose how much damage will you do running them for a little bit? The engine is running GREAT. I'm not even sure they are out of spec but he's got me thinking....

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"Todd"
98 Tahoe ,2007 Saturn Vue
86 930 black and stock, 80 930 blue tracdog
91 Spec Miata (yeah I race a chick car)
"life"ll kill ya" Warren Zevon
Old 01-31-2011, 10:12 PM
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What do you mean a little loose? Are you referring to a lock nut or valve clearance? That two different issues. A loose lock nut needs to be addressed asap. Whereas a loose valve clearance would be noisy and lose some HP.
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MikeD '87 930
Old 02-01-2011, 06:29 AM
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Mike, sorry for the confusion I am refering to the valve clearance. Lock nuts are all snug.
So no harm other than a little loss of power running it that way for a while ?
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"Todd"
98 Tahoe ,2007 Saturn Vue
86 930 black and stock, 80 930 blue tracdog
91 Spec Miata (yeah I race a chick car)
"life"ll kill ya" Warren Zevon
Old 02-01-2011, 08:46 AM
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Join Date: Jan 2008
Location: Weehawken, NJ
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Todd,

Tight clearances will do damage (burned valves). Loose clearances, not so much (within reason, of course). They would need to be pretty far off for you to notice a power difference IMHO.

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Jacob
Current: 1983 911 GT4 Race Car / 1999 Spec Miata / 2000 MB SL500 / 1998 MB E300TD / 1998 BMW R1100RT / 2016 KTM Duke 690
Past: 2009 997 Turbo Cab / 1979 930
Old 02-01-2011, 09:00 AM
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