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Registered
Join Date: Oct 2007
Location: Fall River, Nova Scotia
Posts: 37
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3.2 Cylinder to Head Seal
I am in the process of assembling the heads to the cylinders. Is there any special treatment required on the sealing faces.
Bill |
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10-31-2012, 07:16 AM
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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,639
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No treatment needed. Clean and dry.
__________________
Kevin L '86 Carrera "Larry" |
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10-31-2012, 07:35 AM
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Registered
Join Date: Oct 2007
Location: Fall River, Nova Scotia
Posts: 37
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Thank you. Since this is a metal to metal seal shouldn't there be a surface finish and flatness requirement?
Bill |
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11-01-2012, 02:52 AM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,471
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There is a bevel on the top of the cylinder. Between the bevel and the torque requirements you get the seal.
Bruce |
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11-01-2012, 04:20 AM
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Registered
Join Date: Jul 2006
Location: S. Florida
Posts: 7,249
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Some people like to lap the heads to the cylinders with some valve grinding compound and then of course clean it off before assembly.
I'd like to hear more opinions on this too, and if it's a good idea with heads that have been resurfaced and new mahle 930 pistons and cylinders without flame rings. |
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11-01-2012, 07:13 AM
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