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RE: f-20 noise

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brian

02-11-1999 10:55:23




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Tractor has "rough" "grinding" sound in bottom of engine [not a knock] I think mabey it's main bearing's?? the tractor had a some slight rust on the inside of engine the tractor sat up for 20 year's and I just got running, but it sound's rough, it could be in cluch assembly??? I cant tell for sure [It's not throw out bearing] any one have any idea's ???when I engage clutch, noise change's slightly [a bit quiter ]but remains about the same.

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Jason

02-13-1999 10:27:36




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 Re: RE: f-20 noise in reply to brian, 02-11-1999 10:55:23  
I just purchased another F-20 that the engine was slightly stuck on. After breaking it loose I turned it ove by hand with the crank and heard a similar noise torwards the bottom of the engine. I started the engine and could not hear the noise. When I shut it off I cranked it again and still heard the noise. I then pulled the side covers off the engine and looked inside. The front main bearing was the color of rust and oil mixed together, kind of like when you wire brush something rusty. So I believe you are right to assume that the noise is one of the mains.

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F. Mellott

02-12-1999 09:42:52




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 Re: RE: f-20 noise in reply to brian, 02-11-1999 10:55:23  
Your right to assume the grinding is the mains. I have over a dozen 20s, 30s, and Regulars and they all vary in the amount of crankcase noise they create depending on the amount of wear and abuse they have suffered over the years. I've found many times the bearing in the back of the bell housing that supports the clutch shaft is extremely rough and noisey. This bearing is about $30.00 and is easy to replace by simply removing the bell housing.

If you need to replace the mains, the engine must come out and be dissambled. I've done this to several tractors and can assist with advise if needed. New mains will cost about $300.

Again, check the bearing in the rear of the bell housing first. Often, replacing it will quiet most of the noise. I've seen (and heard) some Farmalls running that I was afraid to stand beside because they sounded like they would come apart any second but they ran that way for years.

Hope this helps Fred.

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C.Fitz

02-11-1999 20:48:26




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 Re: RE: f-20 noise in reply to brian, 02-11-1999 10:55:23  
You got a tough one there; I think I would pull out the plugs and try hand-cranking and see if you can still here the noise. If you can and you think it's coming from the engine, drop the oil pan and look up under there while someone turns the engine over for you. Since it quiets a little with clutch engaged it does sound like it could be a main bearing; hope it ain't.



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