The Ford Barn

blown49 · 01-31-2012, 06:25 AM

How much can be removed, when grinding valve seats, vertically before replacing the seat in the block?

TIA

Jim

Mike51Merc · 01-31-2012, 08:35 AM

I'm no machinist, but I believe that valve seats are ground after they are installed in the block. Perhaps you mean the valves themselves?

Ronnie · 01-31-2012, 10:11 AM

Does it have removable seats now?

R

JWL · 01-31-2012, 11:29 AM

I would need to know more about the question before rendering an opinion---In other words, if you are asking how much vertical material is available before the seat ring is gone, the answer is about a quarter of an inch. If you are asking the vertical distance downward until the block eyebrow needs attention that will depend on the initial status of the seat.

It usually requires less than .030 to solve even the more serious problems. .060 would be a rather extreme problem seat.

blown49 · 01-31-2012, 12:27 PM

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Thanks as always for your quick responses. I appreciate the info particulary from JWL it is exactly what I was looking for but again thanks to all.

Jim

01-31-2012, 06:25 AM	#1
blown49 Senior Member Join Date: May 2010 Location: West Union, Ohio Posts: 113	Valve seat grinding How much can be removed, when grinding valve seats, vertically before replacing the seat in the block? TIA Jim __________________ Visit my Blown '49 Merc website @ http://www.blown49.com

01-31-2012, 08:35 AM	#2
Mike51Merc Senior Member Join Date: May 2010 Location: Northeast Pennsylvania Posts: 1,582	Re: Valve seat grinding I'm no machinist, but I believe that valve seats are ground after they are installed in the block. Perhaps you mean the valves themselves?

01-31-2012, 10:11 AM	#3
Ronnie Senior Member Join Date: May 2010 Location: Canada Where it snows Posts: 2,058	Re: Valve seat grinding Does it have removable seats now? R

01-31-2012, 11:29 AM	#4
JWL Member Emeritus Join Date: May 2010 Location: Fitzgerald, Georgia Posts: 2,204	Re: Valve seat grinding I would need to know more about the question before rendering an opinion---In other words, if you are asking how much vertical material is available before the seat ring is gone, the answer is about a quarter of an inch. If you are asking the vertical distance downward until the block eyebrow needs attention that will depend on the initial status of the seat. It usually requires less than .030 to solve even the more serious problems. .060 would be a rather extreme problem seat.

01-31-2012, 12:27 PM	#5
blown49 Senior Member Join Date: May 2010 Location: West Union, Ohio Posts: 113	Re: Valve seat grinding Sponsored Links (Register now to hide all advertisements) Thanks as always for your quick responses. I appreciate the info particulary from JWL it is exactly what I was looking for but again thanks to all. Jim __________________ Visit my Blown '49 Merc website @ http://www.blown49.com