Oil capacity

Kurn

New User
Still restoring this 1936 I 12.Does anyone know the engine oil capacity? There is no dipstick or sight glass,so how do you know the oil level?
Thanks
 
Generic information here. I have no direct knowledge of the F/I/W/O-12 tractors.

Have you got two valves on the side of the oilpan? It's full when the upper valve begins to drip. It needs more if the lower valve doesn't drip.

Figure on about five quarts.
 
Those are the two I referred to.

I have no idea what's out there for manuals for the F-series, but those for the letter series get into those two petcocks in two ways.

One, and it has to do especially with distilate motors, but also with the blowby of the looser motors in those days, was that after a hard days work, you were guided to drain the oil down to the lower petcock and refill to the level of the upper, draining off any diluted oil. Kind of a perpetual oil change.

As done these days, they are your only checks on the oil level -- ain't no dipstick. Conventional wisdom is that you're okay between the two. If oil will run out the lower petcock when you crack it open, you're generaly okay. If you are checking it in advance of a hard day's work, or refilling after a drain, you'd want to refill until it runs out the upper petcock.
 

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