Before I would pull all the bearings out or look at them, I would pull the plate off of the bottom of the oil pump and see how worn that is. If the gears in the oil pump have much of any end play that's where you'll loose the pressure. You can put new bearings in or check the clearance on the old bearings but if your pump has too much clearance you just wasted all that time and money on bearings for nothing.
You just can't check one thing, you need to check everything in the oil circuit. I put together a Farmall H tractor and the bearings had 3.5 thousands clearance and the oil pressure is fine. I also checked the oil pump and had to resurface the bottom plate in the oil pump. I've got execellent oil pressure even after running an hour or more. Let us know what you find.
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Today's Featured Article - 12-Volt Conversions for 4-Cylinder Ford 2000 & 4000 Tractors - by Tommy Duvall. After two summers of having to park my old 1964 model 4000 gas 4 cyl. on a hill just in case the 6 volt system, for whatever reason, would not crank her, I decided to try the 12 volt conversion. After some research of convert or not, I decided to go ahead, the main reason being that this tractor was a working tractor, not a show tractor (yet). I did keep everything I replaced for the day I do want to restore her to showroom condition.
... [Read Article]
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1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
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