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  #16 (permalink)  
Old 12-22-2011, 06:17 PM
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All I've seen leave the Z-28 Spr. Damper off when the Guides/Bosses haven't been cut to a smaller Dia. May very well be the problem.

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Old 12-22-2011, 06:46 PM
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Yeah these things were SNUG.
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Old 12-22-2011, 07:05 PM
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Live and learn- we've all been there. But, yeah. No damper using the "Z-28/LT-1" spring w/an unmodified production Vortec guide boss OD.

I would still be very watchful of all the clearances and dimensions, etc. Just having the damper tight on the boss wouldn't seem to me to be something that would cause the spring to coil bind by that alone. Not to say there couldn't be some sort of harmonics at work here- just that it alone seems iffy as the lone cause for the broken and bent p-rods. I suppose if the damper were to bind solid that could cause it, but I'd expect there to be damaged/broken dampers as a result and a lot of wear showing on the guide boss OD from the contact.

HERE is a list of valve train points to check.

Last edited by cobalt327; 12-22-2011 at 07:13 PM.
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Old 12-22-2011, 07:16 PM
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When I was putting on the springs a few of the tighter ones would pop. I think it was probably the damper spring moving up within the spring itself. Thinking this way, wouldn't it cause the damper to bind much quicker? Thinking of it as a solid piece of metal I could see where it would break the rods.
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Old 12-22-2011, 07:30 PM
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It's certainly possible. I'd check all the critical clearances again just to be sure.
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Old 12-22-2011, 07:37 PM
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Sounds lk a plan
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Old 12-22-2011, 08:59 PM
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There was already an established thread about this, I merged the two and changed the title to include your find.
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Old 12-22-2011, 09:08 PM
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Okay thanx merry xmas everyone
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