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quick valve lash ?

Old Jun 11, 2006 | 07:45 PM
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From: mocksville nc
Car: '68 corvette '73 Corvette
Engine: 427 454
Transmission: TH400
quick valve lash ?

I installed my cam and heads today and when i set my lash it was VERY easy to give it the 3/4 turn after taking up the slack. Almost hand tight but the lifter was pushed down about 1/2 way. My ? is that this is normal for lifters that have not been pumped up. right?
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Old Jun 11, 2006 | 08:07 PM
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82 Iron Duke's Avatar
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Car: 04 Silverado
Engine: 4.8
Transmission: auto
Try this site http://www.centuryperformance.com/valveadjustment.asp
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Old Jun 12, 2006 | 12:00 AM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
I'm guessing this isn't the stock style locking thread nuts? 'Cuz those are HARD to turn...
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Old Jun 13, 2006 | 09:25 PM
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From: mocksville nc
Car: '68 corvette '73 Corvette
Engine: 427 454
Transmission: TH400
they are the poly locks that came with the roller rockers.
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Old Jun 13, 2006 | 09:36 PM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
ok, then yea. You're only fighting the lifter. I can push down on a pushrod and compress a lifter by hand, so with the mechanical advantage of the threads, it'll be easy.
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Old Jun 13, 2006 | 09:40 PM
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Yes. After you reach "zero" lash, give all the rocker nuts an additional 1/2 turn. Then, as you drive the car, they will be noisy, but should quiet up after the lifters get pressurized with oil. Sitting at idle will take longer.
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