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Tractor Pulling Discussion Forum

Cam duration on a late JD A, and 60 Vs. a 620/630

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buickanddeere

07-27-2005 08:16:53




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Same cam duration on the late JD A and 60 Vs. a 620/630. Yes or no?




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Mike Aylward

07-27-2005 08:40:27




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 Re: Cam duration on a late JD A, and 60 Vs. a 620 in reply to buickanddeere, 07-27-2005 08:16:53  
Glen, according to the Deere spec's I have, yes. They are the same lift and duration. However, I have been told that the ramps are steeper on the later cams. I have not confirmed this, though. Mike



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Earl-IL

07-27-2005 11:36:51




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 Re: Cam duration on a late JD A, and 60 Vs. a 620 in reply to Mike Aylward, 07-27-2005 08:40:27  
What about the diameter of the follower,lifter, rockerarm ratio? Do you have any spec.? Earl In Illinois



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