Workshop Repair and Service Manuals GMC SIERRA
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00-06-01-012D Use of Surface Conditioning Disks When Cleaning Engine Gasket Sealing Surfaces and or Reused Engine Parts - (Oct 25 2011) - part 2

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Use care to avoidgetting solvent in any area other than the mating surface to be cleaned. Allow itto soak in for several minutes to loosen the old RTV sealer/gasket material. GM stronglyrecommends using a plastic razor blade or non- metallic scraper to remove all loosesealer/gasket material.

Important:The appearance of the gasket surface is not critical — the feel is. There will beindentations from the gasket left in the cylinder head after all the gasket materialis removed. The new gasket will fill these small indentations when it is installed.

GM bulletins are intended for use by professional technicians,NOT a "do-it-yourselfer".  They are written to inform thesetechnicians of conditions that may occur on some vehicles, or toprovide information that could assist in the proper service of avehicle.  Properly trained technicians have the equipment,tools, safety instructions, and know-how to do a job properly andsafely.  If a condition is described, DO NOT assume that thebulletin applies to your vehicle, or that your vehicle will havethat condition.  See your GM dealer for information on whetheryour vehicle may benefit from the information.

#00-06-01-012D: Use of Surface Conditioning Disks When Cleaning Engine Gasket Sealing Surfaces and/or Reused Engine Parts - (Oct 25, 2011)

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