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Old 05-18-2010, 09:28 AM   #6
mctim64
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Join Date: May 2010
Location: Visalia
Posts: 26
Default Re: 312 Y-block valve lash problems

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Did you rebuild the rocker assemblies? a worn shaft will make the rockers hard to adjust because the rocker wont always reat in the same place. Also tip wear can be a problem. Rocker shafts are very critical in these engines and need to be looked into.
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