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1994 940 Head Gasket 900 1994

posted by  Onkel Udo II on  Thu Nov 5 14:28 CST 2015
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last visit: Fri Oct 24 08:50 CST 2014
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My comment was less for you than for others that might see this. As our heads tend not to warp much (almost none in NA applications that have not been massively overheated) the average resurfacing job is more to remove high spots or improve the surface smoothness than anything else unless a long term steam leak has eroded a path across the mating surface.

Most machine shops that have been doing this since the dawn of time rely on rules of thumb of .020-.030 or more because that will solve almost any surface irregularity and minor out of plane or warp. They do not care if that is the last time that head can ever be trued...they just want to make sure it is true in one pass of their expensive machine.

I would be surprised if about any B230F head ever need more than .015 removed. I am sure it can happen just likely to be the exception. Most could go with the minimum the machinist equipment can run (unless a very high end shop) or .010.






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