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darriantbird
11-03-2004, 12:55 AM
Ok I have read the instructions for installation It says to hone the inner diameter to.001-.0015 of the measurement of the snout for a press fit - my Question is is it hone over or under? I have been told to go over the snout size by the head mechanic at my shop is this correct ? :confused:

AnnivSpeCpe
11-03-2004, 03:15 AM
Ok I have read the instructions for installation It says to hone the inner diameter to.001-.0015 of the measurement of the snout for a press fit - my Question is is it hone over or under? I have been told to go over the snout size by the head mechanic at my shop is this correct ? :confused:

No, you're looking for an "interference fit" of .001-.0015. This means that the hb hole has to be smaller than the dia of the crank snout by .001-.0015. But mike the snout and balancer first, because there's a good chance that the size is good as manufactured. Mine was perfect and installed without any honing needed and I've heard that the majority needed no honing. John

Raptor
11-03-2004, 07:17 PM
Ok I have read the instructions for installation It says to hone the inner diameter to.001-.0015 of the measurement of the snout for a press fit - my Question is is it hone over or under? I have been told to go over the snout size by the head mechanic at my shop is this correct ? :confused:

Go here: Link http://www.mn12performance.com/mn12how-to/BHJ/BHJ-install.htm