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Are pushrods supposed to rotate?

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Old Jul 25, 2008 | 05:03 PM
  #1  
RazorN8's Avatar
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From: Holland, MI
Car: 1987 camaro
Engine: 383 AFR heads
Transmission: 700R4
Axle/Gears: Ford 9" 3.70:1
Are pushrods supposed to rotate?

I just took the valve covers off and some of my rocker arms are loose. I can jiggle them around by hand. The pushrods spin under the rocker arms with no resistance. I thought that you were supposed to tighten the rocker arms down until there is just a little resistance, then go 1.5 turns from there. If thats true, wouldn't the rocker arm be hard to turn?
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Old Jul 25, 2008 | 05:08 PM
  #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: Are pushrods supposed to rotate?

Not necessarily. If you lash everything until the pushrods don't turn anymore, you've almost certainly got far too much preload.
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Old Jul 25, 2008 | 05:10 PM
  #3  
RazorN8's Avatar
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From: Holland, MI
Car: 1987 camaro
Engine: 383 AFR heads
Transmission: 700R4
Axle/Gears: Ford 9" 3.70:1
Re: Are pushrods supposed to rotate?

are rocker arms supposed to jiggle around?
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Old Jul 25, 2008 | 05:19 PM
  #4  
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: Are pushrods supposed to rotate?

They can, yes.
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Old Jul 25, 2008 | 08:38 PM
  #5  
4RCEPWRD's Avatar
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From: In a galaxy far, far away...
Car: 82Z28
Engine: 350
Transmission: 700r4
Re: Are pushrods supposed to rotate?

Originally Posted by Apeiron
They can, yes.
+1

Here ya go, check out this how to it will tell you all you need to know about getting them right.

http://shbox.com/1/4th_gen_tech2.html#adjust_valves
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Old Jul 26, 2008 | 10:04 AM
  #6  
RazorN8's Avatar
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Joined: Nov 2007
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From: Holland, MI
Car: 1987 camaro
Engine: 383 AFR heads
Transmission: 700R4
Axle/Gears: Ford 9" 3.70:1
Re: Are pushrods supposed to rotate?

thanks guys
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