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Ford Tractors Discussion Forum

Ford 851 governor seal A vs. B

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Author  [Modern View]

12-15-2018 17:31:24

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I posted a few weeks ago about oil coming out around my shaft going out of the timing cover and covering my pulleys. I received excellent advice and I ordered the recommend front main crankshaft seal. When I went to instal it, I actually discovered that I had one, it was just covered in oil and grease, but once I cleaned it out, it was in good overall condition. I originally did not see it and I thought that part was missing. So apparently that was not the problem. I also was told to get the EAF 18183-A. I ordered what I thought was correct, but when I open the box, it is very very small and can't find a diagram where it belongs. I did notice on the box that what I have is the EAF-18183-B.

I assume that there is a big difference between the EAF 18183-A and the EAF 18183-B, or if it is the same thing, then I have no idea where it goes.

Thank you for your advice. Again, I as a stated before, I never seen a coil, taking apart a carburetor, etc. So diagrams or pictures help, I do have 100 hours working on this tractor with less than 10 hours of tractor time. As soon as I find the reason oil is coming out around the pulley shaft, I should be in business, well until something else goes wrong.

Thank you.

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12-16-2018 17:37:53

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 Re: Ford 851 governor seal A vs. B in reply to Tulsakevin, 12-15-2018 17:31:24  
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Yes, I put one on the pulley hub on my 961.

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12-16-2018 03:26:40

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 Re: Ford 851 governor seal A vs. B in reply to Tulsakevin, 12-15-2018 17:31:24  
Kevin, to see the sleeve that Larry referred to google Speedi-Sleeve. I have use a couple.

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Larry NCKS

12-15-2018 19:36:04

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 Re: Ford 851 governor seal A vs. B in reply to Tulsakevin, 12-15-2018 17:31:24  
One other possibility, as I think Bern mentioned before; is that your crankshaft is extremely grooved where the seal lip contacts it. You still need to replace the seal and obtain a wear sleeve for the crank if that's your issue.

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12-16-2018 11:58:29

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 Re: Ford 851 governor seal A vs. B in reply to Larry NCKS, 12-15-2018 19:36:04  
The seal does not seal on the crankshaft. It seals on the hub for the pulley. The bub is replaceable. I suppose a speedy-sleeve would work on the hub also!

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Larry NCKS

12-15-2018 19:32:10

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 Re: Ford 851 governor seal A vs. B in reply to Tulsakevin, 12-15-2018 17:31:24  
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How hard is the seal rubber? I'd still assume you need to replace it and that unless your timing cover is cracked it is your problem!

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Same thing. B seal supersedes or replaces the A seal. click here, check out part # 10: Governor Shaft Seal

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Shaun Wallace

12-15-2018 18:20:31

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 Re: Ford 851 governor seal A vs. B in reply to Tulsakevin, 12-15-2018 17:31:24  
That seal goes on governor shaft. Have to remove spring pin in fork pull arm out. The pulley seal # C0NN6700A.

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