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How can i tell if valve lash is too tight?

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Old 06-15-2005 | 11:42 PM
  #1  
del91_305's Avatar
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From: Kingsport,tn
Car: 1991 camaro RS
Engine: 305 Carb
Transmission: 700R4
How can i tell if valve lash is too tight?

I just got done with my cam/head swap and i am worried that i might have the vavle lash too tight. Is there anyway that i can tell? I used the method where you spin the pushrod then tighten it will you cant spin it anymore.
Old 06-16-2005 | 01:50 AM
  #2  
Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: How can i tell if valve lash is too tight?

Originally posted by del91_305
Is there anyway that i can tell? I used the method where you spin the pushrod then tighten it will you cant spin it anymore.
I'll pretty much guarantee they're too tight then. If you're going to use that method, you do it until you can just feel a slight drag as you turn the pushrod, not until it doesn't turn anymore.
Old 06-16-2005 | 03:53 AM
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From: greenville, OH
Car: 86 Firebird, 2002 Monte Carlo, 91 v
Engine: 350
Transmission: 700R4
mine may be too loose, but they're not making any noise yet. I had trouble getting my car started after a cam/head swap. So the lifters ended up being pumped up. I adjusted mine just to the point all verticle movement of the pushrod was out. Didn't even give it 1/4 turn. I was figuring after I got the car running I'd adjust the noisy ones. None of them were noisy
Old 06-16-2005 | 05:54 AM
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RB83L69's Avatar
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If you cranked em down to where the push rods can't spin, they're too tight.

Back them all off exactly one full turn; and then adjust them correctly with the engine running.
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