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Time a D17
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cnafarms View Drop Down
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Joined: 01 Jul 2011
Location: Mt. Airy, MD
Points: 140 		Post Options Post Options   Thanks (0) Thanks(0)   Quote cnafarms Quote  Post ReplyReply Direct Link To This Post Topic: Time a D17
    Posted: 22 Oct 2016 at 7:02pm
Ok so I need to know the correct way to time a d17. In the inspection port on the side of the tractor when number 1 plug fires should the F-25 that's on the flywheel be visible in that inspection port. I'm guessing yes. The only problem is with mine that once a load is put on the engine it starts to miss loses power. Do also when you time it is it at idle or full throttle. I've read both looking this up on different websites some say at idle and some say full throttle. Any input is appreciated.
Thanks
Chris
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21499 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 22 Oct 2016 at 7:30pm
WIDE OPEN....FULL THROTTLE....F-25.
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WF owner View Drop Down
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Joined: 12 May 2013
Location: Bombay NY
Points: 4917 		Post Options Post Options   Thanks (0) Thanks(0)   Quote WF owner Quote  Post ReplyReply Direct Link To This Post Posted: 23 Oct 2016 at 6:28am
Is the mechanical advance working? They tend to get neglected and set up on these old tractors.
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LeonR2013 View Drop Down
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Joined: 01 Jan 2013
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Points: 3500 		Post Options Post Options   Thanks (0) Thanks(0)   Quote LeonR2013 Quote  Post ReplyReply Direct Link To This Post Posted: 23 Oct 2016 at 6:57am
Wouldn't checking your timing at idle and wide open tell you if the advance was working?
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DrAllis View Drop Down
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Points: 21499 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 23 Oct 2016 at 7:47am
Correct. At high idle it needs to be F-25. At a very low idle (400 RPM) it should be close to TDC.
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