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JD- B crankshaft timing mark ?

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David

02-15-2000 09:57:34




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Posting for a friend who is rebuilding a JD B. He had his crank turned/ground and apparantly the "timing mark" was either removed or maybe we just can't find it. Can anyone help figure this one out. I think he said the B is a 210000 series. Any suggestions????




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clooney

02-15-2000 13:55:50




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 Re: JD- B crankshaft timing mark ? in reply to David, 02-15-2000 09:57:34  
David, what timing mark is your friend looking for, the cam timing mark, or the flywheel timing mark, or the clutch alignment mark? Let us know so we can help.



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Dave Wickman

02-15-2000 10:39:43




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 Re: JD- B crankshaft timing mark ? in reply to David, 02-15-2000 09:57:34  
I take that the timing mark that you are looking for is the one on the crank gear. The gear if removed during the grinding process must have the thrust side of it facing out or toward the left main bearing. The timing mark for timing the camshaft is on the opposite side of the thrust side of gear. This mark can be seen by looking down through the top hole of the crankcase where you enter to service the connecting rods. In other words the timing marks are aligned and viewed from the inside. The marks are a small light center punch mark. Hope this helps. Good Luck!! Dave

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Rob

02-15-2000 18:53:34




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 Re: Re: JD- B crankshaft timing mark ? in reply to Dave Wickman, 02-15-2000 10:39:43  
The timing mark is not visible at Top Dead Center like most engines. It is almost 180 degrees off of TDC and viewed from the inside of the gear, near the crank throw. This confused the hell out of me until I saw a picture in an I&T manual.



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David

02-16-2000 04:23:20




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 Re: Re: Re: JD- B crankshaft timing mark ? in reply to Rob, 02-15-2000 18:53:34  
We got it! Thanks for the help. That crankgear mark was so faint I never would've seen it if I didn't know where to look. Thanks for all your help.



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