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Push Rods 1947 A

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Author  [Modern View]

10-31-2012 18:15:37

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We just completed installing a re-conditioned cylinder head on 1947 "A" John Deere. What are the basics for adjusting the push rods?? or can they be left at the old settings?

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11-01-2012 08:52:15

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 Re: Push Rods 1947 A in reply to shawmic, 10-31-2012 18:15:37  
After you warm up and retorque the head, you will then need to check the valve stting again.

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Mike M

11-01-2012 05:41:37

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 Re: Push Rods 1947 A in reply to shawmic, 10-31-2012 18:15:37  
.022 clearance cold setting with a feeler gauge at the rocker arms to valve stem. Each cylinder has to be at TDC of compression stroke to set it.

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11-01-2012 07:21:58

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 Re: Push Rods 1947 A in reply to Mike M, 11-01-2012 05:41:37  
And if you turn them just finger tight for zero clearance, you can back off two flats on the 3/8" tappet adjusting screw and be VERY close. Works well on tappet faces that are no longer flat.

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10-31-2012 19:02:18

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 Re: Push Rods 1947 A in reply to shawmic, 10-31-2012 18:15:37  
They will have to be readjusted. By removing and reinstalling the head the clearances have changed.

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