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Old 06-28-2002, 10:04 PM
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valve seats

On a new head and new valves I purchased for my 190sl, the valve seats were not backed off so I sent it to a local machine shop. My concern is whether there was enough material removed to keep the edges of the seat on the valve from contacting the seat in the head. The photo is not the best in the world, but when I laped the valve in, there appears to be only .1 to .2 mm that is not contacting on the outer edge. Is this enough or should the seats be backed off further?

Thanks - Walt Puryear
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valve seats-valve8.jpg  
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Old 06-28-2002, 10:21 PM
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Join Date: Mar 2001
Posts: 326
Looks good to me.
Scott Diener
89 300E
93 300E
92 Volvo 740 Wagon aka "Mutt mover"
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Old 06-29-2002, 02:08 PM
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Thanks for the reply. Is the edge of the valve contacting the seat not that much of a concern or is even a very small miss sufficient.
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