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Oil pick up screen

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Paul B

07-03-2003 18:04:01

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I just got an early 8N and I changed the oil last weekend. The oil pickup screen was in real bad shape, and would not go back into the oil plug hole. Well, I rfeplaced the plug and filled it with oil, without the screen. Now I plan to get a new screen/plug, and change the oil agean in a few hours.[It was REAL dirty, like water also] Will I do any harm to it with out the screen? I will not be working it hard before the next oil change. Mostly I am just running it, and driving it around to work all the bugs out.

Paul

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bj/8n./mt

07-04-2003 06:11:28

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Re: oil pick up screen in reply to Paul B, 07-03-2003 18:04:01

Take a look at figure 1 in the FO 4 manual. That screen supports the oil pump pickup which is or should be soldered to the pump. It doesn't float like you [and a few others] may be used to and without support it can suck air and send your bearings south.

If'n it were my machine I would replace it before I ran it again but your tractor your call.

Your mileage may vary

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Rich, NJ

07-04-2003 11:01:24

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Re: Re: oil pick up screen in reply to bj/8n./mt, 07-04-2003 06:11:28

I've heard this a few times before and I find it hard to see how that oil screen can give any serious support to the pickup tube. Once vibration gets started, The tube would aquire a moment that would overcome that screen. I just replaced my screen. It got knocked off the plug when I was doing the engine work. It appeared to me to be a screen for larger stuff and not much more. Solution, Keep the larger stuff out of the engine. I did feel up in there to see if the pickup tube was solid and it was. I have very little experience with the stuff, but I've seen a lot of references to Marvel's Mystery oil additive used to clean out an engine. Before you dump all that dirty oil, you might want to run some MMO for a few hours. This will remove a lot of old crud lurking around the rings and whatnot. I have not heard anything negative about MMO. Regards, Rich

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Bob

07-04-2003 16:31:36

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Re: Re: Re: oil pick up screen in reply to Rich, NJ, 07-04-2003 11:01:24

"Solution, Keep the larger stuff out of the engine."

Well, let me tell you, speaking from 30 years experience making a living repairing engines, even if you "Keep the larger stuff out of the engine", there are still weird things that flake, break, and chip off the inside of an operating engine that would sure raise*@#$ with the oil pump and bearings without a screen to catch them! Remember, this is a bypass filtration system, so anything that passes the pickup screen and doesn't trash the pump will likely make it to the bearings.

The screen may not look like much, but in these old engines, it's all you've got!

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Rich, NJ

07-04-2003 17:35:45

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Re: Re: Re: Re: oil pick up screen in reply to Bob, 07-04-2003 16:31:36

Bob, I stand corrected. You are right, stuff does flake off and whatnot. I spoke too soon. What I was thinking of was that when these tractors were new and being used for field work, They probably saw a lot more stuff slipping into the engines than the gargage queens that many have become. The old oil can spouts were always picking up something and dropping it dowwn the filler tube. I just wasn't thinking about internal disintegration. Regards, Rich

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Bob

07-03-2003 21:18:39

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Re: oil pick up screen in reply to Paul B, 07-03-2003 18:04:01

The purpose of oil pickup screens is to keep larger chunks of stuff out of the oil pump and the bearings. I don't know how effective they are on an "N", but I sure as heck wouldn't run one without the screen. If there is any foreign material floating around in the engine, without the screen it could score, seize, or break the oil pump, not to mention what it could do the the bearings, and getting it replaced would sure be cheap insurance against catastrophe!

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Rob

07-03-2003 20:02:35

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Re: oil pick up screen in reply to Paul B, 07-03-2003 18:04:01

Well it's not good at all to run without that screen. You don't want the oil pump eating anything the screen would stop. If it gets through the screen it wouldn't do for it to get into a bearing.
You can get one at the local farm/ranch store. TSC has em. Don't have to order it or anything.

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Paul B

07-04-2003 02:23:45

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Re: Re: oil pick up screen in reply to Rob, 07-03-2003 20:02:35

Thanks for the input guys. I will get a new one. The oil is already getting a little dirty anyways.. so it looks like anouther change.

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