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Old 10-08-2007, 10:06 PM   #1
2bits
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Setting valves different on an inline 6 vs a v8?

My rebuilder said that you don't set the valves the same way... (loosen 'til it clatters, tighten 'til it goes away, then 1 more half turn). Can anyone confirm?
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Old 10-08-2007, 10:19 PM   #2
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Re: Setting valves different on an inline 6 vs a v8?

I've always done mine the same on 6 cylinder and 8 cylinder. Haven't had any problems yet.

On the last overhaul I did I went 3/4 turn instead of a full turn, though.
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Old 10-08-2007, 10:22 PM   #3
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Re: Setting valves different on an inline 6 vs a v8?

Unless it's a got a solid cam (doubtful) they will be set the same way as a V8 with a hydraulic cam. It's better to get the lash out, and go 1/4 turn. There's no need to a go a 1/2 turn.
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Old 10-08-2007, 10:42 PM   #4
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Re: Setting valves different on an inline 6 vs a v8?

1/2 to 3/4 turn is the norm regardless of what a repair manual says. Always works for me.
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Old 10-08-2007, 11:04 PM   #5
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Re: Setting valves different on an inline 6 vs a v8?

Quote:
Originally Posted by Boog View Post
1/2 to 3/4 turn is the norm regardless of what a repair manual says. Always works for me.
You can run them that way, but the more you tighten the rocker, the quicker the valves will float at high rpm. Now on a L-6, this is a moot point, but on any kind of street performance engine you should go 1/4 turn MAX. On bracket race cars with hyd cams, the norm is an 1/8 turn. I know this is not a race or performance engine, but same rules apply.

Will it run fine at 1/2 turn? Sure, but there's no need to do it. The more you crank down on it, the greater the chance of wiping out a lobe. I have run bone stock engines for 200,000+ miles with no need for re-adjustment.
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Old 10-09-2007, 03:45 PM   #6
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Re: Setting valves different on an inline 6 vs a v8?

I had always heard 1/2 turn but I have no experience. Why is it a moot point for an L6 though? Thanks for all the good info.
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