Re: Farmall BN, have a ton of Questions

Posted by Red Dave on June 03, 2012 at 16:04:54 from (98.235.13.108):

In Reply to: Farmall BN, have a ton of Questions posted by spf150 on June 03, 2012 at 15:37:22:

First off, are there any online manuals available for this machine?

I don't know of any online manuals, but there are several places online that you can order manuals for it. I recommend the service manual and the parts manual.

What carb is the correct carb for this tractor? I'm told that the carb that's currently on it is too small for the tractor to really run right. Either way it needs work, as soon as the shutoff valve is opened and fuel hits the carb it leaks gas BADLY.

If gas runs out of the carburetor when you turn on the gas, your needle valve is open. Either the valve is bad, or the float is maladjusted, or the float isn't floating.

where can I find a new replacement for the screen at the top of the glass fuel bowl under the fuel tank?

I have made them out of very fine brass screen, I don't know if you can buy a screen separately, I do know that new fuel bowls are available and they come with a new screen.

At one point in the past the starter was jump started off of a 12V battery to get the engine to spin over. Could this have damaged out the magneto?

The starter and magneto have no connection to each other. 12 volts is not likely to have damaged the starter, and unless somebody really screwed up badly, it didn't hurt the magneto either. The magneto does not connect to the tractor's electrical system.

For the PTO, what rpm is it?

About 540 RPM at wide open throttle

The tractor does have a hydraulic system, currently set up to work a plow on the front.

If it is a BN, it does not have a factory hydraulic system. Hard to say what you have on your tractor.

Can I upgrade to a 3 pt hitch or is that way too much for this tractor?

I have never seen a 3 point hitch on a BN. But with time, materials, a welder and ingenuity, anything is possible.

Last but not least I went thru the gearbox last year and found a TON of water inside. I drained it all out, sprayed everything down with PB Blaster and WD40 then refilled the gearbox to capacity only to find out that it's leaking oil at the wheels as well as where the axle tubes connect to the trans body. What is the best way to change these out?

The leaks where the differential shafts connect to the differential are most likely due to overfilling of the transmission.

Are the gaskets available or will I need to make my own?

Nearly any part or gasket you may need is available from either Case/IH or an aftermarket supplier. There are also a lot of used parts available. Gaskets should be no problem at all.

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