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Help cam & heads installed now knockin bad

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Old Apr 26, 2011 | 10:51 AM
  #21  
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check all of the valve springs carefully.. sometimes at a quick glance a broken spring isnt that noticeable.
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Old Apr 26, 2011 | 12:34 PM
  #22  
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Originally Posted by ErkDog
CompCams says the lifters have a ~.04 - .06 preload so I set it at .05

My calculation was...

10.33 turns for zero lash * .05 per turn + 6.8 for the pushrod checker base length + .05 preload = 7.3665 rounded to the nearest .025 came out to 7.375

So the "actual" preload would be .0585 with the standard lengths of pushrods available (.025 increments).
Interesting. Patrick G recommends .080-.100 preload for quiet valvetrain in this thread
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Old Apr 26, 2011 | 09:30 PM
  #23  
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Originally Posted by hiltsy855
Interesting. Patrick G recommends .080-.100 preload for quiet valvetrain in this thread
I've gone as high as .1135 (7.450) - it did quite it down some but still have at least 1 lifter/rocker klanking on the passenger side. I was concerned about over-preloading and bottoming out the lifter so I swapped them back out.

I got some replacement lifters but wont have time to work on it until later this week.... I have other issues to deal with right now

...
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Old Apr 26, 2011 | 09:35 PM
  #24  
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On the way home last night I blew the tranny out - AGAIN!!!

This is the 3rd time within a month that my truck has had to have the tranny R&R'd. I bought it from Monster Transmission and it has done nothing but cost me $$$! I'm having a local shop here in Austin build me a 'real' transmission and swap out that POS and send it back to Monster Transmission for a refund!

Sorry for the off topic post ... I just needed to rant a little bit.
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Old Apr 26, 2011 | 09:56 PM
  #25  
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My new tranny will be done by wednesday afternoon! My truck is being towed there in the morning and I should have my girl back by the time I get off work 8-)

I will try and get the lifters replaced tomorrow night when I get home. The passenger side isn't as bad as doing the drivers side :-\ I will try more pre-load if it's still klanking - I'm just worried about going with the .100 preload. If that don't fix the noise though, then I will be getting the O-ring for the oil pickup tube replaced.

I just want my truck back in my arms <3
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Old Apr 27, 2011 | 10:57 PM
  #26  
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Sigh... the tranny shop still has me truck
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