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4430 valve recession


 
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Ken Henry
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Joined: 25 Aug 2012
Posts: 24


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PostPosted: Thu Nov 29, 2012 2:52 pm    Post subject: 4430 valve recession Reply to specific post Reply with quote

I had new seats installed and the head milled about .010. I am going to set the valve height. The JD manual says new heads have .024-.038 height from head to valve FACE. Don't they mean valve head?? With a used valve I have .070 from head surface to top of valve head. What is the max height a person can have? I want it to start nice and I don't like to grind away the new seats.
Thanks for your knowledge.
 
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skip33652
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Joined: 01 Aug 2005
Posts: 701


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PostPosted: Thu Nov 29, 2012 5:03 pm    Post subject: Re: 4430 valve recession Reply to specific post Reply with quote

valves should protrude from the head no more than .038".Paul
 
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LJD
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Joined: 22 Sep 2011
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PostPosted: Thu Nov 29, 2012 5:31 pm    Post subject: Re: 4430 valve recession Reply to specific post Reply with quote

I have no idea why they worded it like that. When Deere started having cold-starting and smoking problems when the 40 series of tractors came out -Deere Co. told us to do all the heads with the intakes .030" and the exhausts .050" deep (distance of head of valve to machined surface of head).
 
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