Oil pumps

[TUCKAWAY]

C123 water antifreeze in oil pan. Bad head gasket.is their a way to clean junk from inside oil pump without removing it. I have head and oil pan removed.

 

[used red MN]

Nope, but just take a couple of bolts out and it will pull out. Was the tractor run with the antifreeze in the oil circulating a milk shake or even just turned over to try to start? Then I would pull it. If not I would not worry about it. Brush it off with some solvent and a brush, maybe blow up in the screen with compress air and go on. If it ran on milk shake oil you should check the bearings.

 

[Janicholson]

When putting the pump back together use some petroleum jelly on the gears to assist priming. Look to be sure there are no wear marks in the pump cover. if so use a 350 grit silicon carbide paper on flat glass to take out the marks. Total end plate to gears clearance should be about .0015 or less. Gaskets are used as shims to space gear to cover. They are less than paper thin. Jim

 

[TUCKAWAY]

Thank you very much

 

[redforlife]

You might keep in mind that if engine was ran (likely) with water/antifreeze in the oil, than your contaminated oil was not limited to just the pump itself, but its also in the entire sequence of oil passages (crankshaft, rods, and
all oil ports). So if your not going to dis-assemble the entire engine (which I doubt you'll do) to clean out all oil ports, I'm not sure that cleaning out contaminated oil in the pump is really accomplishing a whole lot. The barn door has already been left open so to speak. So, a shorter interval on your next oil change or two is basically going to be required to get your oil totally purified. Basically, your going to have to let your oil filter and oil changes go to work for ya, whether you clean out the pump or not.
Of course if tractor has sat for years, and head gasket leak happened during this time, and has not been ran, your looking at a different situation. But, I doubt this is the case.

 

[Jim Becker]

Was there evidence of antifreeze mixed with the oil under the rocker arm cover? I assume so or you wouldn't be asking about the oil pump. In that case, force a pint or so of oil in through the oil passage that feeds the hollow stud in the head. That should push fresh oil into most engine bearings (although probably won't do much for the rod bearings). After that, I'd pull the oil pump, clean and dress the cover as already stated.

This all assumes it has been run with coolant in the oil. If it only leaked while sitting, I'd clean everything with easy access, including the oil pickup screen, put it back together, and run it.