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No Timing Marks On A Ford 850 Tractor


 
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KCTractors
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PostPosted: Mon Jan 21, 2019 7:10 pm    Post subject: No Timing Marks On A Ford 850 Tractor Reply to specific post Reply with quote

I am putting in a new transmission clutch on a Ford 850. I also removed the flywheel to make sure that there was nothing leaking behind the flywheel. Transmission input-shaft seal was leaking also.
I figured that is long as I had the flywheel off, I would mark the the timing marks with a yellow marking pencil. I wire-wheeled the flywheel and I cannot find any timing marks anyplace on that wheel. I had another flywheel from a 821 and it has the marks showing good. The flywheel from the 850 is a lot thinner than the one from the 821 with a 4 speed transmission. Anybody ever see something like that. The only evidence of any marks a very small notch on the side of the flywheel.
 
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Dean
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PostPosted: Tue Jan 22, 2019 6:21 am    Post subject: Re: No Timing Marks On A Ford 850 Tractor Reply to specific post Reply with quote

Never seen one without timing marks but they are sometimes quite difficult to find.

Dean
 
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sunbeam
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PostPosted: Tue Jan 22, 2019 6:36 am    Post subject: Re: No Timing Marks On A Ford 850 Tractor Reply to specific post Reply with quote

You could always do the old hot rod trick with a piston stop
 
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showcrop
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PostPosted: Tue Jan 22, 2019 6:47 am    Post subject: Re: No Timing Marks On A Ford 850 Tractor Reply to specific post Reply with quote


They are very hard to find. They are little more than faint scratches.
 
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David G
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PostPosted: Tue Jan 22, 2019 7:46 am    Post subject: Re: No Timing Marks On A Ford 850 Tractor Reply to specific post Reply with quote

I would put engine on TDC and look closely,.
 
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WayneIA
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PostPosted: Tue Jan 22, 2019 10:12 am    Post subject: Re: No Timing Marks On A Ford 850 Tractor Reply to specific post Reply with quote

Have been around these Fords for 60+ years and have always found the marks, awful faint once in a while ,of course there is always a first time for everything.
 
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KCTractors
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PostPosted: Tue Jan 22, 2019 11:15 am    Post subject: Re: No Timing Marks On A Ford 850 Tractor Reply to specific post Reply with quote

I buffed the flywheel again this morning with a good wire-wheel and still no marks so I installed the flywheel. I turned the engine to fire on #1. The only mark that I found on the flywheel was right on. I gave it another coat of yellow marker and told myself that will have to do.
 
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fredstev
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PostPosted: Tue Jan 22, 2019 12:10 pm    Post subject: Re: No Timing Marks On A Ford 850 Tractor Reply to specific post Reply with quote


Forget what tractor my uncle had, but he had to replace the clutch and pressure plate years ago. It also had scored the flywheel badly enough to need resurfacing. Took it to a machine shop and they used a surface grinder. When we went to pick it up, they proudly announced that they had "trued the back also". Sure did, when I pointed out the timing marks were now gone, you should have seen the stricken look on his face. Worked out ok, though, we hadn't moved the engine, and the flywheel only went on one way. A little fiddling with a timing light and felt marker and we reestablished where TDC was and (as I recall, 20 deg. BTDC) was.
 
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