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| John Deere Tractors Discussion Forum |
Topic: 530 Valve Angles
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| MT RON
10-26-2012 21:41:23
97.119.206.146
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I'm grinding the valves on a 530 for a guy & the only book he has is the operators manual.Would like the proper grind angles for the valves & also the torque for the head bolts.I have a book for a 50 but they are a different style head & not sure they'd be the same values.Thanks in advance for any info.Ron
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| 4010 puller
10-27-2012 11:12:45
70.199.106.9
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Re: 530 Valve Angles in reply to MT RON, 10-26-2012 21:41:23
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| Head torque on 520/530 is 104 foot pounds.
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| BushogPapa
10-27-2012 10:51:45
173.88.51.117
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Re: 530 Valve Angles in reply to MT RON, 10-26-2012 21:41:23
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Seems to me that the only 30 deg angles are on "All-Fuel" JD Heads.. I like 45 Deg on the seat and 44 1/2 Deg on the Valve..
Before I cut that 44 1/2, I polish the valve, back-cut 2 angles before I Polish, then kiss the valve with 44 1/2 Deg .080" just inside the edge radius, then open up the seat width and bowl..
Combustion chamber polishing is optional..! Ron..
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| teddy52food
10-27-2012 07:45:01
184.94.175.179
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Re: 530 Valve Angles in reply to MT RON, 10-26-2012 21:41:23
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| If I can remember right, the ex. is 45 & in. is 30.
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