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Author Topic: Blown Head Gasket On My Trailblazer  (Read 2038 times)


  • Bulleteer
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Re: Blown Head Gasket On My Trailblazer
« Reply #30 on: June 05, 2013, 11:28:45 PM »
With seperate cylinders, they grow near .010" to .012" when fully warmed up. That is why the old engine specs mention to set them cold at nil. They mention nil to .005" on the exhausts but .002" should be OK for all of them just to insure you don't have any valves open when cold starting.

High On Octane

  • Grand Gearhead
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Re: Blown Head Gasket On My Trailblazer
« Reply #31 on: June 06, 2013, 12:26:16 AM »
I set the valves by ear and with a .004 gauge.  I set them to where I could just barely pull the .004 feeler thru, then tightened until I just barely got a tick when wiggling the rocker arm.  The bike sound and runs the best it ever has.  Thanks again guys!


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