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1935 A Big Problems

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Kevin

03-20-2000 16:04:37




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Yesterday I went to help a friend start his 35 A. Well after getting it all together and hopefully timed we pulled it about 30 feet and it took off running. I left the valve cover off, I seen no sign of oil anywhere out of the head. Next thing the fan gave loose and spun up next to the radiator(new recore). Does a person have to put on a different fan and fan shaft that has a nut or what? Any help would be greatful.

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Jed

03-23-2000 12:11:13




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 Re: 1935 A Big Problems in reply to Kevin, 03-20-2000 16:04:37  
Nobody has totally addressed your question about oil to the valve train, so here goes. There is a sloped trough molded on the inside of the governor case. This trough catches some of the oil that is being splashed around in there as the engine runs. The trough leads the oil to the tube that runs from the governor to the valve cover. This system is totally gravity feed. There is no pressurized oil that is forced to the head. The flow of oil depends on the temperature of the oil. If the oil is really cold due to outside temperature, is will take quite a while to start flowing. Obviously, it starts to flow quicker as the engine warms up. It doesn't sound as if you ran the engine long enough, due to the fan problem, to get the oil up to the head. If no oil ever flows into the valve train and the tube is clear(open) all the way, sometimes the little trough is filled with hardened oil and other gunk and not gathering oil.

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Craig

03-22-2000 20:45:03




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 Re: 1935 A Big Problems in reply to Kevin, 03-20-2000 16:04:37  
From the other posts some of you mentioned replacing the rubber mounted fan with the slip clutch fan. Yes, John Deere did sell complete conversion kits for this purpose. I have seen them at swap meets. Perhaps with some searching you can find a kit or get whatever parts you need off of a parts tractor.



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Dkolby

03-21-2000 13:10:50




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 Re: 1935 A Big Problems in reply to Kevin, 03-20-2000 16:04:37  
Well, you won't get any valve oil in there without the cover and the oil line going to the cover. I'm not sure though what kind of set-up you might have cause this should have been obvious, not to mention oil from the govener running all over!

dave



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zane

03-20-2000 17:51:23




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 Re: 1935 A Big Problems in reply to Kevin, 03-20-2000 16:04:37  
Oil for lubricating the rocker arms is delivered by an external steel tube running from the governor housing to the rocker arm cover. The fan is retained by a couple of "keepers", similar to many poppet valve retainers, held in place between the fan shaft and the fan by a spring that surrounds the shaft.



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Kevin

03-20-2000 19:52:56




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 Re: Re: 1935 A Big Problems in reply to zane, 03-20-2000 17:51:23  
Zane, Well I'm going to have to look at it again, to me it looked like it just spun on the rubber, I didn't know if the rubber dried out and broke after all these years. Thanks



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Mike

03-21-2000 01:50:07




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 Re: Re: Re: 1935 A Big Problems in reply to Kevin, 03-20-2000 19:52:56  
Kevin,
Sounds like you have an original rubber mounted fan. And thats what happens rubber drys out and the centrifical force of the fan pulls it forward and hits the core. You need to install the newer type fan assy with clutches and spring assy. If you can get the two half moon keepers out of the front you should be able to slip your old fan off and install the new assy on your old fan shaft. This has happened many times to me and its a little scary Huh!! I had it happen not to long ago on a customers J.D. H and it had a new core in it and an H really turns some RPMs with the govener override luckly I was watching the fan when it started to let go and I got it shut down in time that it didn't hit the core.
Good luck Mike

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Gino

03-21-2000 15:45:48




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 Re: Re: Re: Re: 1935 A Big Problems in reply to Mike, 03-21-2000 01:50:07  
I just checked my 1935 open fan shaft model A, and I too have the orginal rubber mounted fan. What else can be done besides removing the original fan and replacing with a more modern one.



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Mike

03-21-2000 17:51:16




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 Re: Re: Re: Re: Re: 1935 A Big Problems in reply to Gino, 03-21-2000 15:45:48  
Gino,
I too have a 35 openfan but I feel a lot better that mines been converted to the newer style fan.Its the right conversion kit on mine without the generator pulley. Whats your serial number? I'm trying to get a list of 35 openfans together. Mines #413844 its in excellant original condition on full rounds with fenders and all. I think it was a very low hour tractor. As far as your fan theres not a lot you can do to it to make sure it doesn't ever come apart. I've seen a few welded which you don't want to do. And I've seen two that the rubber was removed and epoxy was poured in its place I wouldn't do that either they both wobbled when running. Good luck hope to here from you.Mike
deeres@feist.com

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